eChapters

Abstract
Biological nitrogen fixation (BNF) is a critical ecological process carried out by grain legumes, which form symbiotic associations with nitrogen-fixing bacteria, primarily Rhizobium species. This natural mechanism converts atmospheric nitrogen (N2) into ammonia, a form that plants can readily utilize, significantly enhancing soil fertility and reducing the need for synthetic nitrogen fertilizers. The process begins with the recognition and infection of the legume roots by rhizobia, leading to the formation of specialized structures called nodules, where the bacteria convert atmospheric nitrogen into ammonia through the enzymatic action of nitrogenase. The symbiosis between legumes and rhizobia is tightly regulated by various genetic and environmental factors, including plant signalling molecules, soil conditions, and nutrient availability. Grain legumes, such as soybeans, chickpeas, and lentils, play a vital role in sustainable agriculture by improving soil health, promoting biodiversity, and providing a protein-rich food source. This overview explores the molecular mechanisms underlying BNF, the factors influencing the efficiency of this process, and its potential to enhance sustainable agricultural practices. Understanding the intricacies of BNF in grain legumes can inform breeding programs and management strategies aimed at maximizing the benefits of this natural process for agricultural productivity and environmental sustainability.
Keywords: Nitrogenase, Biological Nitrogen Fixation, Environmental sustainability, Soil fertility

I. INTRODUCTION

The fruits and vegetables we eat and flowers and ornamentals we enjoy are biological entities. They breath, produce heat, perspire, are easily damaged, get diseases and finally die. These carry on processes characteristics of all living things before or after harvest to perform the metabolic activities:

1. to maintain cellular organization
2. to transport metabolites around the tissue and
3. to maintain membrane permeability.

1. INTRODUCTION

Packaging waste forms a significant part of solid waste and has caused increasing environmental concerns, resulting in strengthening of various regulations aimed at reducing the amounts generated. A wide range of oil-based polymers is currently used for packaging of various products by different industries including the food industry. These are virtually non-biodegradable and some are difficult to recycle or re-use as they are complex composites having varying levels of contaminants and pose serious health concerns. In the recent years, the use of bio-based and biodegradable products as packaging material has generated a lot of interest amongst researchers as they bring out a significant contribution to sustainable development with a wider range of disposal options.

Bioplastics are polymers that are capable of undergoing decomposition into CO₂, H₂O and inorganic compounds or biomass through predominantly the enzymatic action of microorganisms. Some of these polymers can also be compostable, which leads to their decomposition in a compost site at a rate consistent with known compostable materials. The market for these environmentally friendly materials is expanding rapidly, at the rate of 10–20 per cent per year. The global market for biodegradable polymers exceeds 114 million pounds and is expected to rise at an average annual growth rate of 12.6 per cent to 206 million pounds by 2020.

Bio-based packaging materials are mostly used to pack short shelf-life products, like fresh fruits and vegetables, and long shelf-life products, like pasta and chips, which do not require very high oxygen and/or water barrier properties. However, the inventory of films shows a wide variety in properties, which could make them applicable as a packaging material for other food products with stricter conditions, like MAP packaging. One of the challenges faced by the food packaging industry in its efforts to produce bio-based primary packaging, is to match the durability of the packaging with product shelf-life. The bio-based material offers great potential for the packaging industry. However, it is important to realize that a thorough evaluation of the functional properties of a bio-based material is essential before it can be used as an alternative for the traditional film materials.

14.1 Introduction

Proteins are the substances formed from nitrogen containing amino acids and are principle structural components of body tissues and muscle. In addition, they are used to produce various hormones, enzymes and hemoglobin in human body. Due to the shift from agricultural to electronics and other fast paying industrial development, most of the countries around the world, ceased to be self-sufficient in their food production in particular protein, which is necessary to satisfy their optimum food demands. The biotechnology development and its usage to agriculture have brought hope to them. The need for food by modernization of agriculture has gained much attention throughout the world. However, the necessity for exploring unconventional and non-agricultural means of food production, especially of proteins rich food, cannot be over-emphasized due to the tremendous growth of human populations in several regions of the world. In addition to this, the importance of protein in food nutrient cannot be put aside because its shortage causes various malnutrition problems and the most lethal malnutrition problem is Protein-Energy-Malnutrition (PEM). The United Nations Food and Agriculture Organization estimates that nearly 870 million people of the 7.1 billion people in the world, or one in eight, were suffering from chronic undernourishment in 2010-2012. There are 925 million people undernourished in developed countries (FAO October, 2010). This situation has created a demand for the formulation of innovative and alternative proteinaceous food sources having high nutritional value. These sources have to be non-competitive with food for human consumption, economically feasible and locally available. This demands a search for new protein sources, with high nutritional value, economically feasible and locally available. Use of microbes as a food source is one of the biotechnological innovations that will certainly increase the availability of affordable protein in the world to solve the global food and feed problems.

In recent decades there has been an increased interest in the industrial production of microbiological protein for use in both human and animal nutrition. The main reason behind it is that there has been the shortage of low cost protein sources in view of the increasing human population and living standards, resulting in famine in some parts of the world and increased demand for animal protein in others.

Abstract

The use of biosensors is growing in the food industry as a means to ensure food safety and quality because of its versatility in determining biological compounds. It is defined as analytical technique used for detection of analyte that combines a biological component with a physico-chemical detector. The most important contribution of biosensors in the food sectors is to control production processes and ensure food quality and safety by reliable, fast and cost effective procedures. Biosensors have been useful for the evaluation of food composition, particularly in functional food products fortified with phytochemicals, vitamins and minerals.. Biosensors are replacing conventional analytical tools since they offer advantages in size, cost, specificity, rapid response, precision and sensitivity. Future progress in the biosensor technology involves the development of nutraceutical release technology within packaging material where it can be used to trigger the controllable release of bioactive components and targeted delivery of protective agents into the food product. The growing consumer demands for safe and quality food has led the food industries to search for quick and reliable methods for which the applications of the biosensor technique in the field of food processing and quality control are found to be promising.

Introduction

The food that we consume should not only contain all essential nutrients like carbohydrate, protein, fat, vitamins, minerals, fibre etc but also should be hygienic and safe. Safety and quality of food is to be ensured not only during food production but also should be continuously monitored till it reaches the consumer (Coles and Frewer, 2013). The characteristics of food are altered during every processing operations viz., cleaning, sorting, transportation, thermal processing, packaging, storage, distribution etc which may be desirable or undesirable. Persistent physical, chemical and microbiological analyses have to be done at all levels of supply chain to ensure the quality of food. Traditional methods of food safety analysis are spectrophotometry, aerobic plate count method, microscopic plate count, titrations, chromatography etc. Though these techniques provide accurate results, the analysis demand cumbersome extraction steps, trained technical staff and are time consuming (Di-Natale et al., 2000). Hence, steady, sensitive and rapid monitoring of food analysis technique is a need of the hour in the present era. Biosensors can effectively replace the conventional techniques owing to its reliability, rapidity, economic and field applicability (Prasad et al., 2014). Biosensors are an attractive diagnostic alternative owing to their in situ detection ability and comparatively reduced detection time from several days to hours, or even minutes (Ruiz et al., 2017). Rapid food analysis can also minimise spoilage, especially in freshly harvested agricultural commodities, such as fruits and vegetables, meat, fish etc. In addition, the portable detection devices provide in-situ detection capabilities without extensive training and assist in integrating real time analysis in food processing centres.

16.1 Introduction

Food safety is most important issue in today's global environment. To safeguard food supply is a very difficult and challenging responsibility, as a consequence of which the world's largest food companies, retailers, and manufacturers have placed very high food safety standards. Although the safety of food has improved exponentially but progress is uneven and food borne outbreaks due to microbial contamination, pesticides, antibiotics chemicals and toxins are common in many countries. International trade statistics (2007) by World Trade Organization (WTO) reported that Europe has accounted for 46% of world exports of agricultural products, where food represents 80% of agricultural exports. The trading of contaminated food among countries increases the risk for outbreaks and consequently, health risks due to microbial pathogens in food are of major concern to all governments.

Biosensors are an important option in the agricultural and food sectors to control production processes and ensure food quality and safety by dependable, fast and cost effective methods. Biosensors have plenty of advantages over conventional analytical tools since they offer advantages in size, cost, inherent specificity, selectivity, rapid response, accuracy and sensitivity. Food microbiologists are always in search of rapid and reliable automated systems for the detection of biological activity. Biosensors provide sensitive, miniaturized systems that can be used to detect unwanted microbial activity or the presence of a biologically active compound, such as glucose or a pesticide. Immunodiagnostics and enzyme biosensors are two of the leading technologies that have had the greatest impact on the food industry. The use of these two systems has reduced the time for detection of pathogens such as Salmonella to 24 hour and has provided detection of biological compounds such as cholesterol or chymotrypsin. The another useful application for biosensors, is detection of genetically modified organisms (GMO), since several countries have laws regulating the commercialization of GMO products and their derivatives. Biosensors are also useful in the implementation of hazard analysis and critical control points (HACCP) plans by verifying process developments and correcting errors in due time. There is joint application of Biosensor technologies and nanotechnologies in many food and agricultural applications such as the development of nano-scale tools for biosafety, nanoscale compounds for food packaging, and nano-sensors for pathogen detection in animals and plants. These are helpful tools in the detection and control of potential food contaminants by the agricultural and food industries.

13.1 Introduction

A surfactant or surface-active agents are the compounds that lower the surface tension between the two liquids or between a liquid and a solid. Surfactants may act as detergents, wetting agents, emulsifiers, foaming agents and dispersants. Surfactants are normally organic compounds that are amphiphilic, meaning they contain both hydrophobic groups or hydrophilic groups. Therefore a surfactant contains both a water insoluble component and a water soluble component. Surfactant will diffuse in water and adsorb at interfaces.

The interfacial free energy is the minimum amount of work required to create that interface and the interfacial tension between two phases is determined as the interfacial free energy per unit area. The interfacial (or surface) tension is also a measure of the variance in nature of the two phases meeting at the interface (or surface). The greater the dissimilarity in their natures, the greater the interfacial (or surface) tension between them. A surfactant is therefore a substance that changes the amount of work required to expand those interfaces. Surfactants usually act to reduce interfacial free energy.

Surface active agents in the form of emulsifiers have a long history of use and are widely used in many products being used in everyday life. An extensive basic research is required to understand the reason of instability and methods to prevent the breakdown of emulsions. Emulsifiers can function as dough conditioners by improving tolerance to variations in flour quality, better gas retention resulting in lesser yeast requirements, increased uniformity in cell size, a finer grain, more resilient texture and improved slicing. Also, the characteristics of freshly baked bread like soft crumb can be retained longer, if the appropriate emulsifiers are added. Commonly used surface active agents in bread production are propylene glycol mono- and diesters, polyoxyethylene sorbitan monostearate, ethoxylated mono- and diglycerides, succinylated monoglycerides and Diacetyl tartaric acid, esters of monoglycerides. Cookie characteristics like top grain, volume and spread ratio can also be improved. Here surfactants used are sodium stearoyl fumarate, sucrose fatty acid esters, sodium stearoyl lactylate, sorbitan fatty acid esters, polysorbates and ethoxylated monoglycerides. In dairy products like Ice cream surface active agents play some important functions like to improve fat dispersion and control fat agglomeration, facilitation of fat– protein interactions, facilitate air incorporation, give smoother texture due to smaller ice crystals and air cells, increase resistance to shrinkage, improve melt-down and reduce whipping time. In candy products, the elimination of “bloom,’’ i.e., the transition of fat crystals is a key reason for the addition of surface active agents. In mixtures of triglycerides, surfactants like sorbitan esters (Spans) and ethoxylated sorbitan esters (Tweens) can control product viscosity in chocolates and in cream fillings and modify the crystal structure. Surface active agents have been utilized in the production of meat analog products also. In margarine, Emulsifiers fulfil several functions like modification of crystal structure in the vegetable fat, assistance in emulsion formation and antispattering. Here, a mixture of citric acid monoglycerides and monoglycerides or lecithin can be used. The properties and mode of action of these chemical surfactants is discussed in the following sections.

1. Introduction

 Banana is the developing world’s fourth most important food crop (after rice, wheat and maize) accounting for 70 million metric tons per annum (FAO stat, 2007 faostat.fao.org/site/567/Desktop Default.aspx?). Banana is also the second highest fruit crop in the world, representing a wide range of varieties of cooking and dessert types, providing a staple, nutritious inexpensive food for millions of people. The word “banana” is a general term embracing a number of species or hybrids in the genus Musa of the family Musaceae known simply as the banana family. Two Musa species namely Musa acuminata and Musa balbisiana, out of the 28 described were first noted in 1865 by Kurz as being the origin of most of the commercial clones (Stover and Simmonds 1987). Cultivated clones are parthenocarpic, mostly sterile with starchy fruits. Indeed, wild types are very fertile; their fruits are full of seeds with little starch, and are seldom fit for human consumption. Its abundance, varietal diversity, availability round-the-year and low cost make banana an important commodity for the religious occasions in many tropical countries. The vegetable bananas, generally grouped under ‘Plantains’ are larger, more angular than dessert type and are generally intended for cooking unripe, although ripened ones are quite like dissert bananas.

1. INTRODUCTION

Food processing involves the use of wide range of unit operations and technologies to transform the raw, bulky and perishable food into more shelf-stable, palatable and marketable food products. Food processing is one of the most effective solution to reduce the wastages, improves the quality and safety aspects of food products, increase the food availability and marketability. Fruits and vegetables are considered as an integral part of any dietary system as these are rich sources of vitamins, minerals and dietary fibres. India is the second largest producer of fruits and vegetables after Brazil and China which contributes 10 % of world fruit production and 14 % of world vegetable production. Fruits and vegetables are more prone to spoilage as compared to cereals due to their nature and composition. The spoilage can be occurr at the time of harvesting, handling transportation, storage, marketing and processing that results in lot of wastage in the form of seeds, pulps, peels etc. Efficient management of these wastes can help in preserving vital nutrients of fruits and vegetables, and bringing down the cost of production of processed foods, besides minimizing pollution hazards. In India, processing of fruits and vegetables is extremely low as compared to the developed countries.

Biotechnology can help in the bio-processing of fruits and vegetables for the production of novel products having better sensory and nutritional qualities, improved shelf life. Bio-processes involve the use of different micro-organisms and enzymes along with modern biotechnological techniques like genetic engineering.

Biochemical and biotechnological methods present eco-friendly and efficient pathways for converting biomass and organic waste into valuable resources, contributing to environmental protection and sustainable development. These methods rely on microbial and enzymatic processes to break down waste materials, resulting in the production of biofuels, chemicals, and other beneficial byproducts. In today’s pursuit of sustainability and circular economy principles, the concept of waste valorization—turning waste into valuable products—has gained significant traction. Biochemical and biotechnological approaches stand out due to their specificity, lower energy requirements, and minimal environmental impact. These techniques transform organic waste into bio-based products like biofuels, bioplastics, organic acids, enzymes, fertilizers, and animal feed. In contrast to thermochemical processes that operate at high temperatures and generate less selective outputs, biochemical processes function under milder conditions, using microbes and enzymes to achieve targeted conversions. These approaches reduce reliance on landfills and fossil resources while creating high-value products from underutilized biomass. A core aspect of biochemical valorization is the microbial breakdown of complex organic compounds such as carbohydrates, proteins, and fats commonly found in agricultural waste, food residues, and industrial effluents. This is accomplished by natural microbial communities or genetically enhanced strains with tailored metabolic capabilities. Anaerobic digestion exemplifies this process, where organic waste is decomposed without oxygen to yield biogas (mainly methane and carbon dioxide) and nutrient-rich digestate. The biogas can be harnessed for energy generation or as a transport fuel, while the digestate serves as a sustainable fertilizer, thereby supporting circular agricultural practices.

Abstract
Biotic stress in plants refers to the adverse impact of living organisms, such as pathogens, pests, and nematodes, on plant growth, development, and productivity. These biotic agents can infect, infest, or parasitize plants, triggering a range of physiological and biochemical responses that compromise plant health. Biotic stress can manifest in various forms, including fungal diseases, bacterial blights, viral infections, insect infestations, and nematode attacks, leading to reduced crop yields, lower quality produce, and significant economic losses. Understanding biotic stress is crucial for developing effective management strategies to protect plants and ensure food security, as it poses a significant threat to agricultural productivity and sustainability. To enhance the productivity of grain legumes, a critical food source for millions, mitigating biotic stress is essential. By adopting effective strategies to manage biotic stressors like diseases, pests, and nematodes, legume yields can be significantly increased.
This can be achieved through the development and deployment of resistant cultivars, integrated pest management (IPM) practices, cultural methods like crop rotation and sanitation, and biological control methods. Additionally, rhizobia and mycorrhizal inoculation can enhance plant defense and nutrient uptake, while precision agriculture techniques facilitate early detection and targeted management of biotic stress. By implementing these approaches, legume productivity can be boosted, ensuring food security, improving livelihoods, and meeting the growing demand for this vital crop.
Keywords: Biotic stress, Integrated pest management, Legume productivity, Sustainability

19.1. Origin and distribution

• Native to Eurasia and introduced in America, Australia and South Africa.

• Grown throughout dry parts of India

19.2. Economic importance

• Whole plant - Useful for rheumatalgia, swellings, cough, asthma, bronchitis, wounds, ulcers, flatulence, dyspepsia, hepatomegaly, otalgia, hiccough, opthalmopathy, vomiting

• Used in cardiopathy, leprosy, skin diseases, fever, splenomegaly, emollient

• As an antiseptic, anti-inflammatory, expectorant, anodyne, vulnerary, digestive, laxative, diuretic, cardiotonic, depurative, diaphoretic, febrifuge, rejuvenating, sedative, alterant and tonic.

19.3. Climate

• Well in tropical and subtropical climate

Bleaching is essentially whitening or decolourizing. It is an important step in the processing of dry plants. It involves chemical processes that can change the ability of colour bodies to absorb light by changing their degree of saturation (Robson, 1967). This chemical action removes the discolouration occurring during the dehydration phase of preservation of plants. It allows the effective use of dyes for colouring. Bleaching agent is a material that lightens or whitens a substrate through chemical action. To reduce the processing costs, multistage bleaching is suggested. In this method, both oxidative and reductive bleaching chemicals are used.

Onion is an economically significant bulb crop cultivated across diverse agroecological environments. Its cultivars vary considerably in bulb size, shape, colour, pungency, maturity, storage behaviour and photoperiod response. Understanding its vegetative and reproductive morphology, growth habit, physiology and taxonomic relationships is fundamental to crop improvement and germplasm conservation. This chapter examines the botanical features and taxonomic position of onion within the genus Allium. It explains relationships among cultivated types, landraces and allied species and discusses varietal classification according to climatic adaptation and consumer preference. Classical characterization and molecular taxonomy are considered important tools for developing productive, resilient and market-preferred onion cultivars.

18.1. Origin and distribution

• Native of wetlands of Southern and Eastern India, Australia, Europe, Africa, Asia, and North and South America

• Cultivated throughout tropical and subtropical India.

18.2. Economic importance

• Economic part - Whole plant

• Chemical constituents: Bacosides

• Used as a nerve tonic and for epilepsy and insanity.

• Used as diuretic and for treating rheumatisim, asthma and hoarseness.

Introduction

There are large numbers of wheat based products such as fermented pan bread, flat breads including chapati, biscuits, noodles and pasta products. Each product has its own specific requirements. For example fermented pan bread needs wheat with higher protein content, stronger and extensible gluten. Chapati requires hard wheat with high protein content and medium gluten strength. Waxy wheats have been found associated with improved shelf life of breads. White salted Japanese noodles need partial waxy wheats with soft grain characteristics and medium protein content and gluten strength. Partial waxy wheats with comparatively lower amylose content and higher starch paste viscosity improve texture of white salted noodles. Yellow alkaline noodles need comparatively harder wheat with medium strong gluten and without waxy trait. Pasta made from durum wheats requires stronger gluten, high protein content and higher content of yellow pigments. In this chapter detailed account of both fermented and flat breads will be given.

Fermentation is one of the ancient techniques that been routinely used to maintain the quality of food products. This process involves the breakdown of complex substances like carbohydrates into smaller ones which assist in extending the shelf life of food products. Fermented foods and beverages shared the major portion of the human diet which positively affect the body. Beer is a low alcoholic drink in which malt, hops and other adjuncts like aromatic herbs, honey and others are fermented with yeast to obtain a product that offers unique flavour, taste and aroma (Sohrabvandi et al., 2012).

1. TERMS RELATED WITH BROWNING

C - enamel can: The sulphur resistant lacquer is golden coloured and the can coated with it are called C-enamel can or sulphure resistant can, used for packing non acid products (Plate 143).

CA storage: Storage of commodities under gaseous atmosphere like gas storage, where the composition of atmosphere is controlled accurately. MA and CA differ only in degree of control and CA is more exact. These storage methods in combination with refrigeration markedly enhance storage life of fruit and vegetables (Plate 144).

CAC: It stands for Codex Alimentarious commission (1962). It is a joint commission of FAO and WHO, comprising of 146 member countries. It ensures consumer food safety, establish fair practices in food trade and promote the development of international food standards. CAC make standards for food additives, veterinary drugs, pesticide residue and other miscellaneous substances that affect consumer safety. These are published in Codex Alimentarius.

Introduction

Cactus pear belongs to Cactaceae family, is widely grown in Mexico and distributed in arid and semi arid tracts of several other parts of the world, such as Australia, Africa, USA and the Mediterranean basin and South East Asia. The future of arid and semi-arid areas of the World largely depends on the development of sustainable agricultural systems based on the use of appropriate crops. Suitable crops are those that successfully cope with water shortage, high temperature, variabilities, poor soils, and easy management to provide food and forage to poor farmers and herders. Opuntias fit most of the above described requirements. In addition, Opuntias play an important ecological role in combating desertification as well as producing fruits and vegetables for human consumption, forage or fodder for livestock, biomass for energy purposes, cochineal for carmine production, and numerous by-products (beverages, vegetarian cheese, drugs and cosmetics). They also provide shelter and food for various wildlife species in arid environments. The fruit known as tuna is a fleshy berry, varying in shape, size, and colour and has a consistent number of hard seeds. The fairly high sugar content and low acidity of the fruit makes it palatable and delicious. Cactus pear was largely treated as underutilized crop by the scientific world until the beginning of 1980, when there was a multiplication of research and symposia, resulting in a large number of publications, including books and book chapters. Recent research finding has, in fact, revealed the high content of some chemical constituents, which can give added value to this crop on a nutritional and bioactive profile. High levels of betalains, taurine, calcium, magnesium, and antioxidants are nutraceutically important. Moreover, some of the constituents show promising in terms of health beneficial quality. Cactus pear products could supplement to nutritional security and human health. The diverse genotypes of Cactus pear have different coloured fruit that show the presence of different antioxidants profiles.

The term canning refers to a process that involves heating foodstuff in hermetically sealed containers for a specific time at a specific temperature to eliminate microbial pathogens that endanger public health; and microorganisms and enzymes that deteriorate food during storage.
Principle of canning: Destruction of micro-organisms causing spoilage, within the sealed containers using heat.
Canning Process
Preparation of food commodities for canning consists of selection of commodities, washing, sorting, grading, peeling, halving, blanching, filling into cans, filling hot syrup or brine, exhausting, double seaming, Sterilization/ processing, cooling, storage, etc.
Raw material selection
Fruits should be ripe but firm, evenly matured, and free from blemishes, insect damage, and malformation. Apple, pear, peach, and banana harvested at the mature stage are preferred for canning.

Materials Required

Fruits or vegetables, stainless steel knife, steel pans, Can Body Reformer, Flanger, Double seamer, weighing balance, Refractometer / Salometer, sugar or salt etc. 

Procedure

    1.    Wash the selected fruit or vegetable (as the case may be) 
    2.    Cut into pieces or slices (the size and shape may depend on the fruit/ vegetable but it should not be too large or too small)
    3.    Blanch the material in boiling water for 1-2 min for effective inactivation of enzymes. 
    4.    Prepare the sugar syrup of strength 40o Brix or brine of 1-3 % strength.
    5.    Prepare the can body using a can body reformer and flange the ends in a flanger.
    6.    Seal the base plate using first and second roller operations of the double seamer. 
    7.    Transfer the prepared fruits / vegetables into the cans. 
    8.    Pour in hot syrup or brine into the cans.
    9.    Place the lid over the top of filled can. (follow the first roller operation of the double seamer, if the cans are OTS cans)
    10.    Exhaust the cans in boiling water for about 10 min. to exclude any dissolved air out of the tissues or syrup/brine.
    11.    When the temperature of the centre of can reaches 79-80 ºC for fruits or 82ºC for vegetables, remove the cans from the exhaust box and seal them properly (follow the second roller operation of the double seamer, if the cans are OTS can).
    12.    Process the sealed cans at 100ºC and 115-121ºC for fruits and vegetables respectively for 15-30 min in case of fruits and 25-45 min. in case of vegetables.
    13.    Cool the cans immediately in cold water and air dry them at room temperature.
    14.    Label and store in a cool dry place.

Canning : Process of preservation of various food stuffs including fruits and vegetables whole or in pieces, in sugar syrup or brine by heat processing them in hermetically sealed containers.

Introduction
The term canning refers to a process in which the food is heated in hermetically sealed containers at a specific temperature for a specific time to eliminate microbial pathogens that endanger public health; and microorganisms & enzymes that deteriorate food during storage. The credit for the invention of canning goes to a French confectioner Francois Nicholas Appert, who was awarded a prize in 1809 by the French government for developing a new method of heat preservation of food in a sealed container and after whose name the process of canning has also been named as Appertization. In 1810 Nicholas Appert published the first book on canning entitled “The Art of Preserving Animal and Vegetable Substances for Many Years.” which is the first known work on canning. The work of Appert consists of packing food in glass bottles, closing them with corks, and heating the container in boiling water for several minutes depending upon the type of the food. Although the developed technique was used to preserve different types of food, the actual reason for the prevention of spoilage was known only after the work of Louis Pasteur (1864) who discovered that food spoilage was caused by microorganisms that were destroyed at elevated temperatures and the technique was known as Pasteurization. This understanding helped to form a scientific basis for establishing and revolutionizing the canning industry. Canning of fruits on a commercial scale was introduced in the USA in 1817 by William Underwood. The old phrase ‘necessity is the mother of invention’ suits well for the development of the canning industry during wars. The Civil War in America and the Great European War of 1914 also gave impetus to the development of a canning industry to meet enormous requirements of food for the fighting forces.

Canning is a process of sealing food stuffs hermatically in containers and sterilizing them by heat for long storage is known as canning.

Principle of Canning

Destruction of spoilage organism within the sealed container by means of heat.

Selection of Fruit and Vegetable

For canning fruit should be ripe but firm and uniformity mature and vegetables except tomato should be tender.

Grading

Selected fruit and vegetable are graded according to size and colour to obtain uniform quality. This is done by hand or machines such as screw grader and roller grader.

Cape gooseberry is the native of Peru and Chili (South America), but widely cultivated in Cape of Good Hope and hence called so. It is known by different name in various parts of the world. It is commonly called ‘Poha’ in Hawaii; ‘Golden berry’,’ Pompelmoes’ or ‘Apelliefie’ in South Africa; ‘Lobolobophan’ in the Philippines. In India it is commonly called ‘Rasbhari’, ‘Makoi’, ‘Tiparee’ or ‘Tepari’. Cape goose berry (Physalise peruviana L.) belongs to the family solanaceae. Out of 80 species of genus physalis, only three are well known for their fruit value. These are: (i) P. pubescen L. (ii) P. Peruviana L., and (iii) P. ixocarpa Brot. However these three species, Physalise peruviana L is the most popular due to its pleasant flavour and acid-sweet taste.

1. Carbohydrates are primarily composed of the elements
   1. Carbon, hydrogen and oxygen
   2. Hydrogen, oxygen and carbon
   3. Oxygen, carbon and hydrogen
   4. None of these
2. Carbohydrates have an empirical formula
   1. (CH₂O)_n
   2. (CH₂O)_n+₁
   3. (CH₂O)_n-₁
   4. (CH₂O)_n/₂

Carbohydrates are synthesized from CO₂ and H₂O in chlorophyll containing plants during photosynthesis. The term carbohydrate was originally coined for this class of compounds as most of them were hydrates of carbon or could be represented by the general formula C_n(H₂O)n. Not all the carbohydrates however, have this empirical formula, for example deoxyribose (C₅H₁₀O₄) and glucosamine (C₆H₁₃O₅N). Further lactic acid (C₃H₆O₃) formaldehyde (HCHO or CH₂O) and acetic acid (CH₃­.COOH or C₂H₄O₂) with this general formula is not a carbohydrate. Carbohydrates are defined as the compounds having either an aldehyde or a ketone group or a modified aldehyde or ketone group and other carbon atoms with alcoholic (-OH) group. Hence the continued usage of the term carbohydrate is for convenience rather than exactness.

1.    Carbohydrates can be represented by

(a) Fischer projection formula

(b) Haworth cyclic structure

(c) Both (a) and (b)

(d) None of these

2.    If a compound has got four chiral centers then it will have isomeric structures.

(a) 4

(b) 8

(c) 16

(d) 64

3.    The sugar, which does not possess chiral center is

(a) Glucose

(b) Fructose

(c) Glyceraldehyde

(d) Dihydroxyacetone

Food is composed of three main constituents viz; carbohydrates, proteins and fats and their derivatives. In addition to these constituents, inorganic mineral elements and diverse organic compounds like vitamins, pigments, flavouring compounds, enzymes, and acids are also present. Carbohydrates, proteins, fats and vitamins are organic in nature. The percentage of water is large in certain foods. The variation in structure, texture, colour, flavour and nutritive value is because of the varying proportions and arrangements of these constituents.

Carbohydrates are important in foods as a major source of energy, to impart crucial textural properties, and as dietary fiber which influences physiological processes. Digestible carbohydrates, which are converted into monosaccharides, which are absorbed, provide metabolic energy. Carbohydrates account for more than 70% of the caloric value of the human diet. It is recommended that all persons should limit calories from fat to not more than 30% and that most of the carbohydrate calories should come from starch. Non-digestible polysaccharides (all other than starch) comprise the major portion of dietary fiber.

Abstract
Grain legumes, members of the Fabaceae family, are essential for global nutrition and sustainable agriculture. The legumes such as soybean, chickpea, lentil, pigeon pea, black gram, green gram, faba bean and field peas are renowned for their high protein and energy content. A core aspect of their significance lies in their ability to fix atmospheric nitrogen through symbiotic relationships with Rhizobium bacteria, enhancing soil fertility and reducing the need for synthetic fertilizers. This process, coupled with their role in carbon sequestration, positions legumes as crucial components of sustainable farming systems. Grain legumes, as C3 plants, rely on efficient carbon assimilation to convert atmospheric CO2 into biomass, supported by high nitrogen content for optimal photosynthesis. Additionally, the symbiotic nitrogen fixation within root nodules enables legumes to transform atmospheric nitrogen into forms usable by plants, thereby contributing to soil nitrogen pools and reducing greenhouse gas emissions. By integrating
legumes into crop rotations, farmers can enhance soil health, lower fossil energy inputs, and support ecological sustainability. This comprehensive analysis underscores the critical roles of carbon and nitrogen assimilation in maximizing the environmental and agronomic benefits of grain legumes.
Keywords: Carbon assimilation, Grain legumes, Nitrogen assimilation, Nitrogen fixation, Photosynthesis

ABSTRACT

The rapid growth in population has created the need of industrialization and as a result there has been a significant increase in milk production and processing. Milk is a commodity which is consumed by persons of all age groups due to its nutritive value and health promoting attributes. However, the rapid growth in dairy sector has adversely affected the environment by emitting various greenhouse gases and thereby, resulting in global warming. Apart from it, there has been an increased usage of non- renewable resources like natural gas and coal in dairy sector. As a result, a viable balance has to be maintained between milk production and processing, environmental health and the rapidly growing population. This can only be achieved with the application of green or environment friendly technologies in all the stages of milk production and processing. This chapter will mainly deal with the various sources of greenhouse gases from dairy sector and on application of life cycle assessment and carbon foot printing for computing the impact of greenhouse gases on the environment. Also, this chapter will enclose various green technologies which can be applied in dairy sector to curb the greenhouse gas emissions.

Keywords: Carbon footprint, LCA, Greenhouse gases, Green Technology, Milk production, Milk Processing

Introduction Nanoscience is a competitive and trending concept in present scientific community, especially in agricultural and allied sciences. The usage of nano-sized materials in food processing sector spreading slowly. With the passage of time and innovation continuation in nanotechnology creating interest to develop miniaturized sensors. Miniaturized sensors have lots of benefits like reducing bulkiness with low power consumption and this eventually reduces the cost. Generally inorganic semiconductors are widely used to develop nano sensors. Generally, sensors are composed of two basic unit which are an identification element and a signal transducer element. Due to its simple structure, high portability and low price, can benefitted against disadvantages of existing system, which are costlier and much more popular. High portability, ease of placement and use make it suitable for onsite use with real-time monitoring. Also, helps in qualitative and quantitative analysis of such substances during analysis of foods which may cause danger and thus inhabit a wider research and development space. For the detection of different unwanted materials or compositions in food, various chemical or biological sensing devices based on different working principles have been developed. The carbon-based nano material can be categories as Ordered Mesoporous Carbon, Carbon Nanotubes, Graphene and Its derivatives, and Carbon Dots.

2.1. Origin and distribution

• Queen of spices, native to East Indies/ India, originating in the forests of the Western Ghats in Southern India.

• Also grows in Sri Lanka, Guatemala, Indo China and Tanzania.

• Cultivated in Kerala, Karnataka and Tamil Nadu.

2.2. Economic importance

• Used for flavouring various preparations of food, confectionery, beverages and liquors.

• Used as whole pod, seeds or ground.

• Used in garam masala

• Spice mixture seasons meat and vegetable dishes, and masala chai and Turkish coffee.

• Antioxidant and diuretic properties

• May lower blood pressure.

• May contain cancer-fighting compounds.

• May protect from chronic diseases due to anti-inflammatory effects.

• May help with digestive problems including ulcers.

6.1. Origin and distribution

• Native of America and Brazil.

• Introduced in India during later half of the Sixteenth Century.

• In 2017, Vietnam, India, and Ivory Coast were the major producers.

• Cultivated in Andhra Pradesh, Goa, Karnataka, Kerala, Maharashtra, Odisha, Tamil Nadu and West Bengal; also in few pockets of Assam, Chhattisgarh, Gujarat, Meghalaya, Nagaland and Tripura.

• Cashew is called gold mine of waste lands.

6.2. Economic importance

1. Introduction
Animal experimentation remains a cornerstone of scientific research in many fields, from medical advances to pharmaceutical testing. However, the ethical treatment of laboratory animals has become a point of significant concern worldwide. India, through the Committee for the Control and Supervision of Experiments on Animals (CCSEA), ensures that ethical standards are maintained in research institutions. Established under the Ministry of Environment, Forests, and Climate Change (MoEF&CC), CCSEA is tasked with overseeing the use of animals in experiments, ensuring that procedures adhere to ethical guidelines and international norms. CCSEA’s guidelines are in line with international standards set forth by organizations such as the International Council for Laboratory Animal Science (ICLAS) and the European Union (EU), but they are tailored to address local needs and conditions. The guidelines, which focus on the welfare of laboratory animals, emphasize the ethical review process, animal care, and the importance of minimizing animal suffering. They also stress the need for researchers to implement the 3Rs—Replacement, Reduction, and Refinement—to minimize the use of animals and ensure humane practices in research. This chapter explores the CCSEA guidelines in detail and compares them with animal welfare regulations from around the world, including the United States, European Union, Japan, and Australia. By understanding the similarities and differences between these regulations, researchers and policymakers can ensure the ethical treatment of laboratory animals on a global scale.
2. Objectives of CCSEA Guidelines
The main objective of the CCSEA guidelines is to ensure that laboratory animals are treated ethically and humanely while also supporting the validity and scientific rigor of research. The guidelines encourage researchers to prioritize animal welfare while minimizing unnecessary suffering. Specifically, CCSEA focuses on:
1. Ethical Treatment of Animals: Ensuring that animals are housed in suitable conditions, given adequate veterinary care, and provided with a comfortable environment to reduce stress.
2. Justification of Animal Use: Ensuring that animals are used only when necessary, and that their use is scientifically justified.
3. Pain and Stress Minimization: Ensuring that experimental procedures cause the least pain, distress and suffering possible.

Introduction

Cereals are grown over 73% of the total world harvested area and contribute over 60% to the world food production providing dietary fibre, proteins, energy, minerals and vitamins required for human health. Cereals like rice, maize, wheat, barley, sorghum, and oats are chiefly used in the preparation of traditional fermented foods and beverages. However, the nutritional quality of cereals and the sensory properties of their products are sometimes inferior in comparison with dairy products. The reasons behind this the lower protein content, deficiency of certain essential amino acids, the presence of determined anti-nutrients (phytic acid, tanins and polyphenols) and the coarse nature.

Cereal Processing

    1.    The protein content of wheat grain varies widely, but for bread making a value of at least 11% is required.

    2.    Low grain sulphur will result in low concentrations of the sulphur-containing amino acids, cystine and methionine, and may result in poor loaf volume.

    3.    During seed germination endosperm starch is converted into soluble glucose and maltose to support the developing embryo. This is brought about by enzymatic activity, especially the enzyme a-amylase.

    4.    Excessive a-amylase levels result in the formation of a darkened loaf crust as a result of sugar caramelization and a sticky crumb structure which can cause problems during slicing.

    5.    Wheat with a protein level below 10% is preferred to reduce gluten elasticity.

    6.    There is a very good correlation between grain nitrogen and the amount of malt extract achieved, low grain nitrogen giving more fermentable extract

    7.    The term ‘coarse grains milling’ is a very broad one that refers to the comminution of the berries of the wheat, barley and other coarse grain crops.

1. Introduction

The development of food products using composite flour has increased and is attracting much attention from researchers, especially in the production of bakery products and pastries. This article focuses on the use of composite flour to produce food products, namely bread, biscuits, and pasta, with looks at on its impact, following some improvements made, on the sensory quality, rheology characteristics, and nutritional values as well as its overall acceptance. The blending of wheat flour with various sources of tubers, legumes, cereals and fruit flour in different percentages to produce variety of food products are also reported. The positive effects of the use of composite flour can be seen in the final product related to the functional and physicochemical properties and health benefits of raw blended flour along with percentage blending. Overall, composite flour is a good new approach to utilizing uncommon food products as the application of composite flour produced products with different characteristics and quality, depending on the types and percentage of wheat flour used in the formulation.

Bread has been the staple food worldwide and habit of bread is derived in part due to the convenience and wholesomeness. Wheat is a commonly used cereal for making bread as it gives the desired texture due to the presence of gluten forming proteins like gliadins and glutenins (Decock & Cappelle, 2005). In earlier times idea of composite flour in developing countries originated in order to cut down on import of wheat (as it was not grown in many countries) but in recent past refined wheat flour consumption has lead to health issues and thus in order to improve nutritional and functional properties composite flour has been the norm. Composite flour is the one obtained by mixing wheat flour with cereal and legume flours for making bread and biscuits (Dendy, 1992). However, mixing of non-wheat flours, roots and tubers, legumes or other raw materials can also be regarded as composite flour.

Importance of Foods

The word “instant” has been used in widely different types of premixes to specify the products either as ready-to-eat food or semi processed foods. The instant premixes available in Indian market were classified as Indian products and Westernized or sophisticated products. The instant mixes included under Indian market products are spice mixes, snack mixes and desert and sweet meat mixes. The Westernized products (instant mixes) contained soup mixes, beverage mixes, desert mixes and soft drink mixes.

Convenience foods are gaining popularity in recent years as they are very easy to handle, require minimum storage space and are attractive. Convenience foods have emerged as a new set of products in the international market. Most of the traditional foods that are commercially available in our country are being prepared / processed by cottage industries and by some of the multinational companies. The various types of convenience foods/ instant mixes that are presently being processed, marketed and consumed all over the country. Supplementation with protein-rich sources and preparation of acceptable ready-to-eat snack foods would not only correct its nutritional inadequacies, but would also provide a variety.

Instant mixes were high in nutritive value especially needed for armed forces, light in weight, easy to carry and prepare. Rapid industrialization and urbanization and changes in eating habits of Indian people led to very high demand for ready-to-use snack foods. The convenience instant foods are meeting the urgent and exigency situations of offering hospitality to unexpected guests.

Changing life styles and values are at the root of considerable changes in eating habits over the last few years. Hand-in-hand with a strong demand for fast and take away foods, there has been a marked upturn in popularity for convenience foods in India. The major reasons for this trend are: the decline of the family meal time, growth in disposal incomes (only in cases of city dwellers), the desire for more leisure time and demand for “foreign” or “sophisticated” dishes inspired by the media and increased travel.

Introduction

About sixty percent of the world’s food intake comes from the three major crops, i.e., wheat, rice and maize (Thielecke and Nugent, 2018). Depending upon the country of utilization and consumption, the products made from cereals such as barley, wheat, maize, triticale, spelt, buckwheat, rice etc. can vary in the range of pasta, bread, pastries, soups, chapatti, cooked rice etc. World cereal utilization in 2021/22 is forecasted at 2,811 million tonnes and the worldwide production of cereals is expected to reach 2,818 million tonnes by 2025 (FAO, 2020).

    1.    Rice is a
        a)    Edible fruit    b)    Edible Vegetable
        c)    Edible flower    d)    All
    2.    Major components in cereal seeds are 
        a)    Endosperm    b)    Germ or embryo
        c)    a & b    d)    None
    3.    Bran is composed of 
        a)    Pericarp    b)    Testa
        c)    aleuron layer    d)    All
    4.    Oats contains ______________ percent of hull
        a)    50    b)    40
        c)    30    d)    20

Technical and Economic Challenges in Advanced Packaging The implementation of advanced packaging technologies comes with a range of challenges. Technically, developing materials that are both highly effective and environmentally friendly is a complex task. Packaging must not only protect products and ensure their safety, but also minimize its ecological footprint. From an economic perspective, these advanced solutions tend to be more expensive, which can make it difficult for smaller businesses or those in cost-sensitive markets to adopt them on a large scale. Furthermore, the need for efficient production methods, scalable new materials, and affordable solutions continues to be a significant hurdle for the industry. Balancing Performance with Environmental Goals One of the primary challenges in packaging is achieving

13.1 Challenges in the technology transfer process
Technology transfer (TT) is more complex and involves the complex interrelationships between universities, research institutes, the private sector, the state, and society. Though TT is all about translating research findings into purposeful solutions that can support the economy and society, it is not a linear process. The challenges can be described as legal, institutional, cultural, financial, policy, and human resource. All this is accompanied by bottlenecks that inhibit or decelerate the diffusion of promising technologies.
13.1.1 Legal and intellectual property challenges
The vital component of technology transfer is the proper management of intellectual property (IP), which is often the most challenging aspect.
• Ambiguities in IP ownership: During multi-institutional or shared funder research, ownership is quite controversial. As an example, when a government lab and a university collaborate on the project, there is ambiguity as to who would have the ultimate licensing authority over the technology: the university, the lab, or the funding agency. This kind of fight hinders commercialisation and scares off industry partners.
• Lengthy patent filing and prosecution timelines: In several jurisdictions, the filings, examination, and granting of a patent may take between three and five years or more. Such delay is not compatible with the rapid cycle of invention in other fields such as ICT or biotechnology, where patent claims may become invalid before they are granted.
• High costs of IP protection: International direct patenting, like under the Patent Cooperation Treaty (PCT), is costly and involves legal services, fees, and upkeep costs. These costs are excessively high, which cannot be easily compensated by universities and startups, and where technologies are not secured or limited to local markets.

Food safety scientifically describes various methods of handling, preparation and storage of food to prevent any foodborne illnesses. However, it is important to check the safety between industry, market and the consumer. From the food industry to the market the practices relating to food labeling, food hygiene, food additives and pesticide residues are important to be looked into and the policies on biotechnology. The governmental imports and exports needs to be given proper guidelines. Certification systems and Inspection for foods need to be installed which should be clean and corruption free. When all this is properly considered the food could be safe in the market. This may allow for safe delivery and safe preparation of the food for the consumers. Many diseases are transmitted by food which serves as a growth medium for bacteria and cause food poisoning. In the developed countries it has been observed that there are many intricate standards for food preparation. However, in the developing countries the availability of adequate safe water itself is a question. It is possible to prevent food poisoning to 100%. An ordinance and code regulation in US (1943)was given.

Fermentation process is known to humans since ancient times. It involves the transformation of raw materials into value added or nutritional products as a result of microbial action or their growth. The fermentation as a science involves aspects of the biological action of microbes, biochemical changes in the substrates and metabolites formed and their effect on food, health and nutritional applications. While fermentation as technology, involves chemical engineering, food engineering and instrumentation aspects and commercialization of the products prepared keeping in view the consumer acceptability. The term fermentation is derived from the Latin word ‘Fervere - to boil’ thus describing the actions of yeasts on extracts of fruits or malted grain. Fermented foods and beverages enhance the pleasure of eating and their nutritional roles include indirect contributions through subjective enhancement of appetite. The instant mixes for fermented or fermentable products such as idli, dosai, dhokla and bhatura mix can reduce the overnight fermenting of the raw materials required for preparation of these products. The instant mixes for idli & dhokla are quite common in the market. However, instant mix for Jalebi and Bhatura are still emerging. Such products add convenience to the consumers and products can be prepared instantly. Certain other fermented foods include dairy products, pickles, sauerkrauts, Kanji, beverages, food supplements and nutraceuticals from fermented biomass.

It has been found that at the household level the health of female members in any family suffers to a large extent. It could be encountered to low health care, poor housing or/and environmental conditions. Due to malnutrition it affects the health to such an extent that it gives rise to many diseases. For a sustainable nutritional status food and various aspects of health needs attention. Looking into that, nutrition is directly related to the health status. For food and nutrition security it is vital to see the availability, accessibility and utilization of food. The World Food Programme (WFP) developed the Vulnerability Analysis and Mapping (VAM) project to analyse the vulnerability to food insecurity of target populations. A prominent part of VAM is related to food access. The demographic and Health Survey (DHS), funded by USAID, provides health data for many countries to help them design their national policy. FAO has developed the Global Information Early Warning System (GIEWS), which collects data related to temporary food insecurity. Under the leadership of WHO, several health surveillance systems have been developed and implemented to monitor the epidemiology of various forms of malnutrition and of selected diseases. At the meso or sub-national level, food market surveys provide data on the availability of food. Agricultural production surveys, intra-household food frequency interviews, immunization surveys and anthropometric surveys of children under five can be used to assess the availability, accessibility and utilization of food and its stability at micro level. Most common Food and Nutrition Security (FNS) indicators at different social and administrative levels depends on the supply and demand. To determine the national situation of food availability data on the production of different food commodities, fertility rate and the trends in internal population needs to be seen. Food prices and per capita food consumption are indicators for national food accessibility. The rates of stunting, wasting and underweight in children, low Body Mass Index (BMI) in adults and low birth weight are FNS impact indicators that designate the extent to which food is adequately being used, utilized and converted into a satisfactory national nutrition situation. Fluctuations and shortages of food availability or accessibility in food prices make the national FNS unstable. Sensitive indicators for accessibility of food are the prices in the market. The sewage disposal and diarrheal diseases (DD) rates affect food utilization.A temporal food and nutrition insecurity arises due to pre and post harvest food availability and accessibility along with low BMI.If the food is in shortage leading to the consumption of more wild foods indicates reduced food availability at household level. Also if the number of meals per day goes down and unemployment increases it indicates low food accessibility.Malnutrition indicators like wasting, goitre or anaemia among the household members show reduced food utilization at micro level. Finally, changes in pre-harvest food consumption practices are good indicators for temporal food insecurity.