eChapters

Plasma Activated Water (PAW) is an emerging technology that combines the reactive properties of plasma with water to create an effective medium for food preservation and decontamination. This chapter explains the principles of PAW generation and examines different generation systems, including atmospheric pressure plasma jets, corona discharge and dielectric barrier discharge. It explores applications of PAW in reducing post-harvest losses, extending the shelf life of highly perishable foods, supporting edible-coating formation, controlling undesirable enzyme activity and improving food safety. The chapter emphasizes the potential of PAW as a sustainable processing approach while discussing treatment conditions, food-matrix interactions, technological limitations and opportunities for future development in food preservation.

B.T.U.: It stands for British thermal unit. The heat required to raise the temperature of one pond of the water through 1^° F is called BTU.
Baby back ribs: Meaty pork ribs cut from the lower back rib section.

Bacitracin: A polypeptide antibiotic isolated from a bacillus (Bacillus subtilis or B. licheniformis) and usually used against gram-positive bacteria.

Back Bacon / Canadian bacon: Bacon cut from the loin that has little fat and is cut into round or oblong slices.

Kharif onion helps maintain supply and stabilize prices when stored rabi onions become scarce. Its production is nevertheless challenged by high temperature, excessive rainfall, humidity, unsuitable varieties and limited availability of quality seed. Onion is biennial for seed production and requires bulb production followed by replanting for flowering and seed formation. Its protandrous flowers encourage cross-pollination, making adequate isolation and pollinator activity essential. This chapter explains short-day varietal requirements, bulb selection, vernalization, isolation, field management, pollination, harvesting, seed processing and storage. Improved infrastructure, organized production and farmer training are required to ensure continuous supplies of genetically pure, high-quality kharif onion seed.

Foods are classified into three groups on the basis of ease of spoilage. Spoilage meant a condition produced by the excessive growth of microorganisms leading gradually to decay or decomposition. The stable or non perishable foods like sugar, flour, grains and dry products do not ordinarily spoil unless handled carelessly. The semi-perishable food like potatoes, onions, apples, waxed fruits, fruits and vegetables having thick skin can be protected from spoilage if properly handled and processed. The perishable foods, like livestock products, seafood, and poultry items, dairy products, and most fruit and vegetables spoil readily unless special preservatives methods are used. The spoilage of foods may be caused by molds, yeast, bacteria, enzymes, food constituents and insects. The use of food additives have become necessary to prevent spoilage other wise caused by the growth of bacteria, yeasts and molds.

Food spoilage usually refers to undesirable changes occurring in food due to the action of micro-organisms, insects and enzymes. The original nutritional value, texture, flavour of the food are damaged, the food become harmful to people and unsuitable to eat. Today however, preservation has used such factors as temperature, water activity, pH, gases, organic acids, salts, antibiotics, irradiation, packaging and various combinations of these factors. Foods vary greatly in the length of time for which they can be held in their natural form without spoilage. Preservatives retard product spoilage caused by mold, air, bacteria, fungi or yeast. Bacterial contamination can cause food-borne illness, including life-threatening botulism.

Abstract
Grain legumes, also known as pulses, are vital to sustainable agriculture due to their roles in enhancing soil fertility, providing essential nutrition, and supporting environmental sustainability. By establishing symbiotic relationships with nitrogen fixing bacteria, legumes naturally enrich soil with nitrogen, reducing reliance on synthetic fertilizers and fostering sustainable farming practices. Their inclusion in crop rotations not only boosts soil health but also supports food security, especially in developing countries where they are a key source of plant based protein and nutrients. The impact of climate change, including rising temperatures, altered precipitation patterns, and increased frequency of extreme weather events, presents significant challenges to agriculture. In this context, grain legumes demonstrate considerable climate resilience. Their drought tolerance, heat resistance, and ability to fix atmospheric nitrogen make them well-suited to withstand climate stress. Legumes exhibit mechanisms such as deep root systems, efficient water use, and adaptability to diverse environmental conditions, contributing to their robustness in the face of climate variability. To bolster the role of grain legumes in climate-resilient agriculture, climate-smart practices and technological advancements are essential. These include optimizing planting strategies, adopting water-efficient methods, and breeding for improved resilience traits. Addressing challenges such as climate variability, pest pressures, and resource limitations is crucial for maintaining the benefits of legumes. Future efforts should focus on developing robust management
practices and improved varieties to ensure the continued contribution of grain legumes to food security and environmental sustainability.
Keywords: Climate Resilience, Drought Tolerance, Grain Legumes, Heat Resistance, Sustainable Agriculture, Water Use Efficiency

1.       Introduction

2.    Lipid Storage in Fish
    
3.      Factors Influencing Nature of Lipids in Fish
    
4.    Composition of Fish Oils
    4.1    Nature and composition of fatty acids
    4.2     Triacyl glycerols
    4.3     Phospholipids
    4.4     Diacyl glycerol ethers
    4.5     Wax esters
    4.6     Hydrocarbons
    4.7     Sterols
    
5.    Autoxidation of Fish Lipids
        
    5.1    Mechanism of autoxidation
        
    5.2     Factors influencing lipid autoxidation
        
    5.3     Control and prevention of autoxidation
    
6.    Lipid Autolysis
    
7.    Rancidity Problem in Fish
    7.1     Indices of oxidative rancidity
    
References

Storage plays a crucial role between harvesting and the processing or direct consumption of food grains. In developing countries, its significance is amplified, especially since small and medium landholding farmers heavily rely on on-farm storage. In India, however, an annual storage loss of 14 million tons, worth approximately 7,000 crores, occurs due to post-harvest pest damage. The economic loss from storage pests is not only a result of consumption but also due to contamination and spoilage caused by the pests’ body parts, excreta, and hoarding. The lack of awareness about storage pests, their damage, and the use of improper storage techniques contribute to these massive losses.
The solution lies in constructing suitable storage structures, which are wellequipped and properly managed, and implementing strict hygiene standards in storage areas, along with efficient pest control measures. These combined efforts are essential to minimize storage losses. This section focuses on identifying major pests in storage and their management strategies.
SIGNIFICANT INSECT PESTS OF GRAINS THAT ARE STORED
The primary insect pests that affect stored grains include:
• Lesser grain borer (Rhizopertha dominica)
• Rice weevil (Sitophilus oryzae)
• Khapra beetle (Trogoderma granarium)
• Rust red flour beetle (Tribolium castaneum)
• Long headed flour beetle (Latheticus oryzae)
• Saw toothed beetle (Oryzaephilus surinamensis)
• Rice moth (Corcyra cephalonica)
• Almond moth (Cadra cautella)
• Angoumois grain moth (Sitotroga cerealella)

E numbers: Each food additive used in the food industry has been given a specific number code for their identification. These numbers are called as E numbers. These E numbers are used within the European Union. The word prefix “E” stands for Europe. They are commonly used on the food label through out the European Union. These are not used in Australia and New Zealand. The different food additives are given different E numbers depending upon the type of food additive like E100-E199 (food colours), E200-E299 (preservative), E300-E399 (antioxidants), E400-E499 (thickners, stabilizers, emulsifier), E500-E599 (pH regulator, anticaking agent), E600- E699 (flavour enhancers), E700-E799 (antibiotics), E900-E999 (miscellaneous like waxes, synthetic glazes, packaging gases, sweetners, foaming agents) and E1000-E1099 (additional chemicals).

Eovalue: It is the thermodynamic favourability of the reaction.

17.1 Introduction
Butter is a fat concentrate that is produced by churning cream to create a solid bulk, which is subsequently processed. The table creamery butter is produced from the cream or coagulate of cows or buffaloes, or a combination of the two. It may contain common salt and natural colorants such as annatto or carotene, but it should be devoid of other animal lipids, wax, mineral oils, and vegetable oils and fats. The only permitted additives are common salt and natural colorants (annatto and carotene), with no preservatives permitted.. The butter must contain a minimum of 80% milk fat, no more than 1.5% curd, and no more than 3% sodium measured by weight. Diacetyl may be incorporated for flavoring purposes; however, it is prohibited from exceeding 4 ppm. Calcium hydroxide, sodium carbonate, and sodium polyphosphate are permissible additives, provided that their combined weight does not exceed 0.2% of the butter’s weight.
17.2 Classification
The market supplies a wide variety of butter varieties. This varies depending on the kind of cream used in their production as well as other factors. The varieties of butter are:
1. Pasteurized cream butter: Usually made from sweet cream that has been pasteurised. However, this kind of butter has a milder flavour than the same kind of cream that hasn’t been pasteurised.
2. Ripened cream butter: Butter is produced through adding butter culture to cream and incubating it until the desired acidity and flavour are achieved. Authentically made ripened cream butter possesses a mild
flavour commonly known as ‘real butter flavour’.
3. Unripened cream butter: Created from fresh, unripened cream.
4. Salted butter: Butter with added salt.
5. Unsalted butter: Butter without any added salt.
6. Sweet cream butter: Butter made from cream with an acidity level not exceeding 0.2%.

India has made considerable progress in improving its food security. The agricultural development strategy pursued in the country, particularly since the mid-sixties, is recognized and appreciated world over. The integration of agricultural research with quality education and a properly planned extension education system has been one of the fundamental foundations of this developmental strategy, which also led to revolutions in many other sectors of agriculture and allied enterprises. As a part of this strategy, several programmes of transfer of technology from research stations to farmers’ fields were launched in the country. These included National Demonstration Project, Lab to Land Programme, Operational Research Project and Krishi Vigyan Kendras (Farm Science Centers). The programmes were continuously reviewed from time to time and reformulated for their effectiveness. Presently the Krishi Vigyan Kendras (KVKs) have been recognized as an effective link between agricultural research and extension system in the country (Venkatasubramanian et. al., 2009).

Krishi Vigyan Kendras (Farm Science Centers), an innovative science-based institution, were established mainly to impart vocational skill training to the farmers and field-level extension workers. The concept of vocational training in agriculture through KVK grew substantially due to greater demand for improved/agricultural technology by the farmers. The farmers require not only knowledge and understanding of the intricacy of technologies, but also progressively more and more skills in various complex agricultural operations for adoption on their farms. The effectiveness of the KVK was further enhanced by adding the activities related to on-farm testing and front-line demonstrations on major agricultural technologies.

Introduction

The mammary glands of female mammals secrete milk, a necessary food that is liquid and meets the newborn’s nutritional needs. All mammals consider milk to be a complete food for their newborns. It is considered a necessary food for humans and can be consumed as a product or as liquid milk. It contains almost all essential nutrients except iron, which is very low in milk. In essence, milk is an emulsion of protein and fat in water, supplemented with carbohydrates, vitamins, and minerals.

Definition of Milk

• Milk is a complex biological fluid that differs from species to species in both composition and physical properties. It is the full lacteal secretion of a mammary gland that is obtained by milking mammals for a minimum of 72 h after calving or until the milk is free from colostrum.

• FSSAI defines milk as the normal mammary secretion derived from the complete milking of healthy milch animals. It should be free from colostrum.

From a chemical perspective, milk is a dynamically balanced mixture that comes in different forms such as emulsion, colloidal suspension, and true solution. It also contains varying amounts of proteins, fats, carbohydrates, salts, and water.

Gross Composition of Milk

Milk composition varies among different mammals. The average chemical composition of milk in various species is given in Table 1. Buffalo milk and sheep milk contain higher amounts of fat, while human milk comparatively has the highest lactose content. Human milk has lower protein content as compared to milk of other species.

Due to inadequate intakes of vitamins and minerals, half of the world's population suffers from micronutrient malnutrition. An adequate amount of wholesome as well as diverse foods are required for the proper growth and development. In addition to calories requirements, these foods should provide various nutrients. In India, ~70% of children do not get the required calories either due to lack of enough food or diverse food. This indicates that these children are also incapable of fulfilling their protein, minerals and vitamins requirements. Diets that lack diversity can be deficient in certain nutrients. Due to the micronutrient composition of the soil of a region, or because of the intrinsic insufficiency of the normal diet the staple foods of some region can lack particular nutrients. The individual plant foods are often deficient in certain nutrient components due to the varying level and composition of food nutrients in different food crops. Some crops are rich in one component but low in other. For example; legumes are usually high in protein, but deficient in essential amino acids like methionine whereas, wheat and rice are rich in carbohydrates but contain little essential amino acid such as lysine, iron, and lack provitamin A. Relying on a single food crop as major staple source of nutrients thus will not attain a nutritionally complete diet and result in malnutrition and deficiency diseases, which often occur in populations of developing countries, mainly due to poverty. Globally, over one billion people are undernourished and food security is a major issue with the world's population forecast reaching to nine billion by 2050.

Introduction

India is bestowed with varied agro-climatic conditions. Thus, horticultural crops have lot of potential in the country. India has witnessed voluminous increase in horticulture production over the last few years, which has undoubtedly doubled the income of farmers. As a result, the country has emerged as the 2nd largest producer of fruits (102.48 million tonnes) after China during 2020-21 (Anonymous, 2023). The abundance of fruits ranging from tropical delights like mango, banana, guava and papaya to temperate fruits such as apple, peach, plum, apricot and pear, have laid a robust foundation for the growth of the fruit processing industry. This chapter delves into the dynamics of fruit processed products in both local and international markets, exploring the challenges, opportunities and strategies for sustained success. Fruit processing plays a crucial role in adding value to horticultural produce, enhancing shelf-life and meeting the diverse demands of local and international markets. In India, a country blessed with abundant fruit varieties, the processed fruit industry has been witnessing significant growth, catering not only to the domestic market but also making strides in the global arena. The processing of these fruits into various products such as juices, pulps, concentrates, jams and dried fruits has emerged as a thriving industry. This chapter will provide insights into the current state of fruit processed products in India, their importance for both local consumption and export markets, challenges faced by the industry and potential avenues for the future growth.

Table cream: It is also called coffee cream, single cream or homogenized cream. It is used in coffee and tests about 20% butter fat.

Table oil expeller: It is a type of the machine that is used for extraction of the oil from the oil seeds (Plate 230).

In the previous chapter the physical methods of fruit and vegetables processing and preservation have been discussed. The present chapter deals with chemical method of fruit and vegetable preservation. In this method of preservation of fruits and vegetables, chemicals as preservatives are used to prevent the spoilage of fruit and vegetable products. These preservatives react with food (produce) constituents or microorganisms and create unfavourable conditions which hinder growth, activities and multiplication of microbes responsible for spoilage of food products. These chemical agents have maximum permissible limit of their use as law. They can be classified into two classes class I and class II.

Class I: Sugar, Salt and Oils

Class II: Sodium benzoate, Potassium metabisulphite (K M S) and Sorbic acid

Food packaging serves to protect products throughout their journey from production to consumption. However, packaging is often exposed to a variety of hazards during transportation and storage that can compromise its effectiveness and, ultimately, the quality and safety of the food inside. Understanding these hazards is essential for designing packaging solutions that can withstand the physical, environmental, and atmospheric challenges encountered along the supply chain. This chapter examines the types of hazards that affect food packaging during transportation and storage, focusing on the ways in which these factors impact packaging integrity, food quality, and consumer safety. By exploring mechanical hazards, environmental influences, and atmospheric interactions, this chapter provides insights into the crucial role that resilient packaging plays in safeguarding food from production to point-of-sale.

INTRODUCTION

Research in agriculture and allied activities and the subsequent technological innovations are important requisites for enhanced productivity and generating income for the farmers. In India, farming is a way of livelihood to 65 per cent of nearly 1. 1 billion population. Our farm population is increasing annually by 1. 84 per cent. The average farm size is becoming smaller each year and the cost-riskreturn structure of farming is becoming adverse with the result that farmers are getting increasingly indebted. There is no option except to produce more food and other commodities under conditions of diminishing per capita arable land and irrigation water resource. Hence, we must harness the best in frontier technologies, thus integrate them with traditional wisdom and thereby launch an eco-technology movement.

The productivity in agricultural sectors is dependent on several bio physical and socio-economic factors. The significant biophysical factors are weather parameters, soil health, water resources, crops/ varieties and pest environments. In order to monitor the impact of weather parameters, we need to have weather forecasts and the accuracy of which to harvest the economic benefits should be given top priority. Only fifty years ago, weather forecasting was an art which was derived after interpretation of data received from land based observing stations, balloons and aircraft etc. Now, modern technology particularly computers / weather satellites / radars has resulted in enormous improvements in the accuracy of weather forecasting with the help of various coordinated meteorological observing networks.

The growing concern over the environmental impact of traditional packaging has led to increased interest in biodegradable and edible packaging solutions. These innovative approaches offer sustainable alternatives to conventional materials like plastic, which can persist in the environment for hundreds of years. Biodegradable packaging decomposes naturally, reducing pollution and landfill waste, while edible packaging provides an additional layer of sustainability by allowing consumers to eat the packaging along with the food) These solutions not only address waste management issues but also respond to changing consumer preferences for environmentally friendly products. This chapter explores the importance of sustainable packaging, the different types of biodegradable and edible materials available, and the challenges and future potential of these eco-friendly options.

1. IMPORTANCE

Nutrients are known to influence each and every physiological process within plant system. A considerable amount of various nutrients has been reported to drain off every year with the yield, pruning wood and fallen leaves from the plant and soil system. Therefore, for successful fruit culture, assessment of nutritional status of an orchard assumes significance. The key to mineral nutrition of any orchard is the judicious application of fertilizers on the basis of leaf and soil analysis. The nutrients requirements of fruit trees may vary from crop to crop and includes the soil as well as foliar application of the required major and micro-nutrients. Low level of nutrient results in low yields which are much below the realizable potential. There are a number of reasons why better nutrient management in horticultural crops deserves serious attention. The nutrition management of fruit crops is important:

1. To obtain higher yields and higher returns.
2. To increase the returns from established orchards.
3. To help improving the nutritional standards of the people by providing adequate supply of fruits and vegetables at affordable prices.
4. To provide greater and better quality raw material for fruit and vegetable processing industries, and
5. To help earning foreign exchange through the export of high quality produce in fresh or processed form.

Fundamentals of Nanotechnology in Packaging • Overview of Nanotechnology in Packaging: Nanotechnology in packaging refers to using materials manipulated at an extremely small scale (1-100 nanometers) to boost the performance and capabilities of packaging. Techniques like nanoparticles, nanofibers, and nanocomposites are integrated into packaging materials to improve their physical properties, prolong shelf life, and introduce new functions like antimicrobial features. Mechanisms and Key Materials • Nanoparticles: Small particles added to packaging to enhance strength, f lexibility, and barrier properties. Common types include silver, titanium dioxide, and zinc oxide nanoparticles. • Nanofibers: Made from substances such as chitosan, cellulose, or polymers, these fibers increase strength and are useful in active packaging coatings. • Nanoclays: Dispersed in polymers, these increase resistance to gases and moisture, enhancing barrier performance