eChapters

Abstract

By loosely inspiring the actions of neurons in the human brain, artificial neural networks (ANNs) are widely accepted as a powerful nonlinear adaptive approach to tackle complex, dynamic, highly nonlinear, and ill-defined problems in an increasing number of fields of food industry.They have been used extensively in food drying to solve problems of nonlinear function approximation, pattern recognition, data description, optimization, simulation, pattern recognition, control, data sorting, clustering, and noise reduction, due to their massively parallel structure and capability to learn from examples. In this chapter, after providing a brief description of ANN technology and its principles as well as the structure of the most commonly employed ANNs in this context, an example is given to explain how the ANN technique is used for modeling and controlling food drying process. Generally, modeling, prediction, and optimization of heat and mass transfer, thermodynamic performance indicators, and quality parameters as well as physico-chemical attributes of dried foods are the most popular subjects to attract researchers’ attention to apply the ANNs in food drying industry.

Normally raw milk contains different levels of inhibitory substances, which restrict the normal development of bacteria and some times may even kill them. The degree of inhibitory activity varies considerably in milks of different species, viz, cow, buffalo, human. Maximum activity present in human milk, variations occur in the milks of individual animals and some times even at different milking or from different quarters of the udder of the same animal.
There are two groups of antimicrobial substances present in milk:
    1.    Inherent or naturally occurring substances in milk. 
    2.    Non- inherent compounds secreted into milk from other sources.

Abstract

Dietary antioxidants can be found naturally in various fruits, vegetables and food products.Typically, antioxidant phytochemicals commonly found in food products are Vitamin C, Vitamin E, carotenoids, polyphenols, melanoidins and indoles. The main characteristic of an antioxidant is its ability to scavenge free radicals and form stable end product which inhibit the chain oxidative mechanisms that lead to degenerative diseases which are harmful to human health. Drying is widely used in food processing to minimize food wastage and to extend food shelf-life. Pretreatment, drying methods and storage conditions are some of the processing parameters affecting the quality of dried products. Selection of processing conditions and storage environment are therefore critical in maximizing the retention of food antioxidants. This chapter aims to compile and summarize studies carried out for antioxidants namely antioxidant contents in dried food products, effect of processing parameters and quantification methods in the analyses of antioxidants.

Biosensors are the next generation detection devices, use biological sensing elements like enzymes, nucleic acids, antibody, cells, organelles, tissues, receptors; have got varied applications in the field of drug discovery, diagnosis, biomedicine, food safety and processing, environmental monitoring, defense and security etc. Microbial biosensors are analytical device that uses naturally occurring or engineered microbial cells as the recognition elements to detect physiological changes in cells with the help of suitable physicochemical transducer.

Ali Demirci et al., (2014) studied the reactors with biofilms which are used to produce many value added products. These include organic acids, alcohols, enzymes, antibiotics, bacteriocins and many more. Many bioreactor designs favor the biofilm formation in a reactor. The biofilm reactors are utilized for fermentation and bioconversion of large amount of biomass. Recently, the biofilm reactors have been applied for production of many value-added products with novel designs. According to Ercan and Demirci (2015) the biofilms can cause both detrimental and beneficial effects in the environment. Biofilms in bioreactors has many advantages due to the membrane fouling which reduces the cost. Higher biomass density can be utilized and the operation is more stable.Biofilm reactors are commercially being utilized for waste water treatment, bench and pilot-scale production of value-added products. In order to run the biofilm reactor at optimum conditions it is important to understand the fundamentals of biofilm formation, the different properties

Starch is the most abundant polysaccharide carbohydrate reserve which is available in different parts of plants such as roots, stem, leaves, seeds, flowers, and fruits. It is considered an excellent source of energy and plants utilizes carbon from it for their metabolic activities (Smith, 2001). It is composed of glucose units linked together by glycosidic bonds to form amylose and amylopectin polymeric chains (Abbas et al., 2010).

The term nanoscience defines controlling or modifying the shapes and sizes of the materials such that they lie in the range of a nanometre (1 nm = 10^-9 m) scale, typically 1-100 nm (Chavada et al., 2016). The application of these materials and systems by their suitable designing and production is what is known as nanotechnology. Richard Feynman, in 1959, first discussed the possibility of this advanced technology. However, the term was first used by Norio Taniguchi in 1974 (Chavada et al., 2016).

The last two decades have seen rapid growth and development in the industrial sector as well as urbanization has increased. Due to globalization and mass production of commodities, the situation in the modern world nothing like ever before. Food and dairy industries are also not left out from this massive expansion. Due to changing behavior and food consumption habits too, there has been a surge in the risk of foodborne illness. This has created a problem in terms of public health and sustainability

Introduction

Food safety and quality assumes paramount significance in any food industry. Globalization has driven both the food and agricultural firms to adopt systems that functions in a way to interlink food standards and international trade so as to achieve superior food quality and safety. Food industries follow several regional and international food safety procedures to procure certification from the government and other agencies in order to survive in both domestic and international markets (Ryan, 2014). The essential components in the food safety include handling, preparation and storing of the food products to ensure the food quality and to avoid food-borne diseases. The unwanted substances in a food product included by an accident is known as contaminants and the unwanted substance added to the food product to reduce the cost or to improve the other properties are known as adulterants. Contaminants and adulterants may lead to pathogens and toxins that pose serious concerns over the health of the consumer (Jha, 2016). The adulterants and contaminants are classified as physical adulterants and contaminants, chemical adulterants and residues, microbiological and pathogenic contaminants and toxins.

Hazards in food can be categorized into physical, chemical and biological.

Physical Hazards: Physical hazards are foreign organic or inorganic objects or extraneous materials in the food products. Hard and sharp physical hazards are of particular concern. Examples of physical hazards are broken glass, plastics, metal pieces, wood pieces, stones etc.

Abstract

Drying is one of the most important industrial operations for preservation of food material. Due to the major limitations posed by convective drying methods, there is always a need for novel drying techniques which are technically, economically and environmentally sustainable. Based on the principle of moisture diffusion due to vapor pressure gradient, atmospheric freeze drying (AFD) offers a promising alternative to conventional drying systems. A cold gas with low water vapor pressure is used as drying medium to sublimate moisture directly from the frozen material at atmospheric pressure conditions. As a result the product gets dried at much lower temperature unlike convective drying. Thus, products dried with AFD retain better nutrition, texture and color and the process is also considerably cost effective. Major limitation of the AFD process is longer drying time, which can however be accelerated by using heat pump drying or new ultrasound technology. This chapter focuses on mechanism, benefits, limitations and comparative study of AFD with other drying methods such as hot air drying and vacuum freeze drying. It provides an insight regarding effect of AFD on properties of food material based on various studies reported in literature.

Bacteriophage is the term applied to bacterial viruses. Bacteriophage having the ability to lyse certain sensitive living cells. Phages are small particles, which can only be seen in the electron microscope after the application of suitable staining techniques. All phages have a head and most have a tail. The head may be isometric or prelate with a hexagonal outline.

There are two types of phages virulent and temperate which enter a different relationship with the host, the lytic and lysogenic cycles respectively.

Various types of equipment are needed and used to facilitate the process of baking. Depending upon the use, equipment may be as light equipment and heavy equipment.

Baking is no different from any other area of cooking, and as in other sectors only the best and the freshest raw material can guarantee good results. So selection of right kind of ingredients is of utmost importance. Another basic need of a professional baker and confectioner is to purchase the equipment required. The design and size depends upon the volume of sale expected. So in this chapter we are going to learn about the ingredients required for running a bakery.

The word “baked products” refers to a vast variety of foods, such as cakes, bread, cookies, pastries, and crackers, and a variety of other items, and it might be difficult to find a common thread that connects the members of this a varied group. The strongest common connection is that all of them include wheat flour in their recipes.

Introduction

Barley is an important cereal crop grown all over the world and is used mainly for feed and malt purposes and little for human food. Barley is the world’s oldest grain, as evidenced by discoveries in ancient cities in the Middle East and North Africa. It has been cultivated for about 8,000 years, and today is the world’s fourth largest cereal crop. Considerable evidence is available that points to the role of barley as sustaining food source in the evolution of humans. Additionally, alcoholic beverages of various types and fermented foods prepared from barley are commonly referred to in the ancient literature. As other food crops (wheat, rice, corn and rye) became more abundant, barley was relegated to the status of “poor man’s bread”. In the United states, barley used as food is 1.5%, as animal feed 65% and in malt and alcohol production 30% (Newman and Newman, 2006). In 1991, barley used as food in European countries was even lower (0.3%) than the United States. In contrast, during the same time period food was the largest for barley in Morocco (61%), China (62%), India (73%), and Ethiopia (79%). However, current consumer interest in nutrition and human health may help restore barley’s status in the human diet. Nutritional qualities of barley have been known since ancient times. For example, Ajgaonkar 1972 described how ancient Indian physicians effectively stabilized type II diabetics some 2400 years ago. Treatment was remarkable simple and not really different from recommendations that are given to diabetic patients today, i.e., lose weight, change diet, and increase exercise.

Introduction

Over the past few decades, probiotics have become the most promising and emerging field in human nutrition and health across the world including India and other developing countries. The global profit generated from the probiotic market is expected to reach approximately 12,753.4 million US$ by the end of 2026 (Probiotic market report, 2018). The factor fueling the demand for probiotics is the growing awareness among consumers about their health benefits. The association of probiotics with health benefits stretches back to a time before microbes were discovered. However, the scientific evidence of the health benefits of probiotic microorganisms on the wellbeing of the host was firstly proposed by Russian Nobel laureate Ellie Metchnikoff in 1905. He reported that consumption of fermented milk containing Lactobacillus spp. is responsible for the healthy and long life of Bulgarian people (Anukam & Reid, 2007). Afterward, several of scientific progressions were made to reach the current status where probiotics are not only the subject of food and medical research but also the source of a multi-billion dollar global industry.

The term probiotic is derived from the Greek words, which means ‘for life’. According to the Food and Agriculture Association of the United Nations (FAO) and World Health Organization (WHO), probiotics are defined as “live microorganisms which when administered in adequate amount promote the health of the host” (Joint, FAO, 2002). In 2014, International Scientific Association for Probiotics and Prebiotics (IPPA) did minor correction in the definition given by FAO-WHO and defined them as “Live microorganisms that, when administered in adequate amounts, confer a health benefit on the host”

Abstract

Milk is the almost complete and highly nutritious food for mammals, as it supplies all the energy and nutrients needed for the proper growth and development of the neonate. Milk proteins are considered the most key source of bioactive peptides and an increasing number of bioactive peptides have been identified in fermented dairy products and milk protein hydrolysates,. These bioactive peptides are sequences between 2 and 20 amino acids that improve the physiological functions and inhibit chronic diseases. The bioactive peptides are inactive within the sequence of the origin protein and can be released by addition of various types of proteolytic enzymes, coagulation enzymes and starter culture during milk processing. Once bioactive peptides are release in the body, these peptides may act as regulatory compounds with hormone-like activity. Furthermore, bioactive peptides from milk proteins have many biological activities such as antimicrobial, antihypertensive, antithrombotic, antioxidant, mineral binding, and anti-diabetic. Due to their physiological and physico-chemical variability, milk bioactive peptides are considered as greatly important components for health stimulating foods or pharmaceutical applications. Over the past few decades, major advances and developments have been achieved on the novel bioactive peptide and commercial applications of bioactive components which are present naturally in the milk. The aim of this chapter is to focus on the bioactive peptide present in milk, extraction of bioactive peptide, functional capability of bioactive peptides in milk and their importance in human health including bio active peptide based commercial dairy products.

According to Li and Tian (2012) a pure-culture planktonic growth of bacteria is rarely found in natural environments.There is a physical interaction between the bacterial cells in biofilms (Kolenbrander, 2002; Watnick and Kolter,2000).The bacteria can organize into groups and can form well-organized communities. They also communicate for coordinated activities (Davey and O toole,2000; Watnick et al., 2000; Nadell et al., 2009). Quorum-sensing mechanisms are common in prokaryotic and single-celled eukaryotic organisms like fungi (van Bodman et al, 2008; Sordi and Muhlschlegal, 2009). For any biofilm structure to develop a high level of cell density is important (Kolenbrander et al., 2002; Kuramitsu et al., 2007 and Webb et al., 2003) and also for checking the effect of antibiotics against planktonic organisms in exponential growth phase using MIC and MBC.This can predict the antibiotic efficacy against rapidly dividing bacteria in acute infections. Papanna, Shobharani and Agrawal Renu (2010) studied the interception of quorum sensing signal molecule

Biofilms play an important part in biotechnology, immunology, biofouling and biodeterioration (Fleming and Wingender, 2001; Dunne, 2002). When the pathogenic cells adhere to the surface, it has been found that the transcription of the EPS genes get stimulated (Dunne, 2002). If EPS gene expression are monitored it can provide a good understanding of biofilm phenotypes (Allison and Sutherland, 1997; Helm and Naumann, 1995; Petersen et al., 2005). EPS serves many functions. It also enables the bacteria to capture nutrients (Pontefract,1991).The formation of biofilm goes through a mechanism which is different from species to species. Even the matrix thickness can be different from 0.2 to 1.0pm depending on the species and doubling time of the cells as thickness of 10 to 30 nm has been found in some bacteria species (Sleytr,1997). The cells secrete polysaccharides, proteins, nucleic acids and glycoproteins. Adherence on solid surfaces by microorganisms is a very complicated process that depends mostly on extracellular molecule production (Czaczyk and Myszka, 2007). The biosynthesis of EPS provides an optimal environment in which genetic material between the cells can be exchanged. This is needed for cell identification and the antigenic properties are helpful in serological characterization of the cells. Among the various compounds of extracellular carbohydrates are acetate esters, pyruvtes, formates, succinates, polysaccharides and proteins (Sutherland, 2001a).

Microbial life abounds on a solid substrate. Water and some nutrients are sufficient to allow the microbial construction called biofilm. Biofilm-associated infections (BAI) can enhance chronic infections in which the bacterial pathogens can persist causing cross-contamination of the food products.

Giaouris et al. (2014) worked on the meat processing and biofilm formation by foodborne bacteria. Work on seafoods has been well worked by Mizan et al. (2015). Habimana et al. (2010) studied them in feed industry on Salmonella versus host resident flora strains. Lin et al. (2017) have studied the characteristics of some food borne pathogens. In a study by Rao et al. (2020) cold atmospheric plasma can be a solution to prevent biofilms.Ferriol-Gonzalez et al. (2020) worked out that bacteriophages can be helpful to remove biofims. According to Przekwas et al. (2020) in early stage of growth of the biofilm use of ascorbic acid can be helpful for the removal of biofilms. Apples can be protected from pathogenic bacteria by protecting them using harmless bacteria. It leads towards the development of alternative foodborne-pathogen-control strategies. Listeria monocytogenes is a big concern in the NE part of India.

Joana et al.(2016) have written a critical review on biofilms and have discussed newer methods to study biofilms. These have given a deep knowledge on the physiology, structure and composition of biofilms. More polar amino acids were present in ABPs but QSPs were made up of higher number of neutral amino acids.This helps in recognition. Web application WebLogo help in generating sequence logos (Crooks et al., 2004). The uncharged polar amino acid is present at the first, third and fifth positions.The basis of SVM model is on the amino acid composition of the peptides. The Weka model is based on selected eight inputs which is trained on the NT5 dataset and is accurate, sensitive and specific.Peptide drugs are FDA approved and a total of 242 sequences of biotech peptides/proteins are available at the Drug Bank database. To identify potential anti-biofilm activity for characterization the peptide sequences are submitted on the module of dPABBs. The prediction outcomes are displayed under the ‘Putative ABPs’ section(http://ab-openlab.

Introduction

Humans have primarily consumed "meat/meat products based on where they lived and how they evolved. According to Food Safety and Standards Act 2006, “meat means fresh meat, poultry and game meat which could be in the form of whole pieces, cuts or comminuted (minced etc.), whereas, meat products are those that have been processed by various methods so that they no longer resemble fresh meat”. These products include meat, poultry, and game products in whole pieces or cuts that are cured salted and dried, processed by non-heat treatment, fermented non-heat treated products, heat treated or frozen products. Edible casings used for sausages etc. also come in the category of meat and meat products. Through a notification dated 12^th September, 2017, the FSSAI has included domestic rabbits (Oryctolagus cuniculus) in the Food Safety and Standards (Food Products Standards and Food Additives) Regulation 2011 in the regulation under meat and meat products.

With the advent of globalisation, there has been an increase in food trade which has led to the introduction of exotic meat and meat products. Moreover, rapidly growing economies like India, now demonstrate a growing appetite for meat. As the consumer demand for high quality meat is increasing in most countries, the meat industry should consistently produce and supply quality meat that is safe and healthy for the consumer to ensure continued consumption of meat products.

Introduction

Several hazardous chemicals, microbes, and techniques like recombinant DNA technology are used for research and development work in research Institutes and universities. Therefore, the researchers, technical, helping and supporting staffs as well as the laboratory outputs must be kept free from contaminations. Thus, biosafety is necessary to prevent unintentional exposure/ release of hazardous chemicals, microbes/pathogens, and toxins to the laboratory staff and environment. Following the biosafety guidelines and ethical considerations are essential to maintain safety standards for the researchers as well as the environment. This chapter deals with various biosafety measures and ethical issues to be strictly followed while working in a research laboratory. The required safety level needs to be determined as per the chemical/biological materials are used in the laboratory to keep the researcher/environment safe for sustainable research and developmental activities.

Biosafety

The term biosafety is used to describe the procedure and policies needed to ensure environmental and personal safety. Biosafety refers to the containment principles, technologies and practices that are implemented to prevent unintentional exposure to pathogens, toxins, or their accidental release into the environment. A fundamental objective of any biosafety program is the containment of potentially harmful chemical/biological agents as precautionary safety measures.

Why Biosafety?

With the increasing number of countries adopting molecular biology tools and techniques in life science research and development activities, especially in the areas of agriculture and medicine, the biosafety issues are gaining importance to ensure biological safety for the public and the environment. Conducting research in safe and sustainable manner is not only a personal requirement but essential collective efforts to ensure biological safety for a clean and safe environment. This requires rules, regulations, monitoring bodies, and awareness among the workers as well as the public. Therefore, biosafety per se is an integral part of laboratory research and requires awareness among the researchers so that biological safety can be well taken care from the grassroot level.

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.

Ice cream is an emotional as well as a technical product, often associated with happiness, celebration, indulgence, family experiences, and personal enjoyment. This chapter explores the principles of brand building and marketing strategy in the ice cream industry. It explains the difference between a product, label, and brand and examines consumer understanding, product quality, packaging, pricing, visibility, trade marketing, distribution, and innovation. The chapter also addresses launch strategies for new brands and the role of leadership in building long-term brand equity. A successful ice cream brand must combine a clear consumer promise with consistent product quality, availability, attractive presentation, efficient distribution, and memorable consumer experiences.

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.

In economics and business, specifically cost accounting, the break-even-point (BEP) is the point at which cost or expenses and revenue are equal: there is no net loss or gain, and one has “broken even”. A profit or a loss has not been made, although opportunity costs have been paid, and capital has received the risk-adjusted, expected return.
For example, if a business sells less than 1000 liters of milk each day, it will make a loss, if it sells more, it will be a profit. With this information, the business managers will then need to see if they expect to be able to process and sell 1000 liters of milk per day.

A) Selection of Dairy Cattle

Proper selection is the first and the most important step to be adopted in dairying. Records are the basis of selection and hence proper identification of animals and record keeping is essential. Cross-breed animals with exotic inheritance of about 50 percent are preferable.
 
Bringing animals from different agro-climatic conditions causes problems due to non-adjustment in many cases. In case, purchase becomes absolutely essential it should be from similar environmental conditions as far as possible.

General selection procedures for dairy breeds

Selecting a calf in calf show, a cow in cattle show by judging is an art. A dairy farmer should build up his own herd by breeding his own herd. Following guidelines will be useful for selection of a dairy cow.

India is home to an enormous number of buffalo. According to the 20th Livestock Census, more than 109 million buffaloes, or more than 56% of the world’s population, are living in India. With 20 recognized breeds, it also has a very diverse collection of buffalo genetics. One of the most well-known buffalo breeds in the world, the Murrah, is also found in India. The buffalo is a versatile animal that can be used for milk, meat, and draught. India is the world leader in this industry, producing 76% of the world’s buffalo milk.

Abstract

Buffalo is the second major source of milk supply in the world. India, Pakistan, China, Egypt, Nepal, Myanmar, Italy, Sri Lanka, Iran, and Turkey are the top ten countries of highest buffalo milk production. In Asian countries, Riverine buffalo is mostly used milk purpose breed. Buffalo milk is a plentiful source of nutrients including fat, protein, essential fatty acids, essential amino acids, lactose and beneficial oligosaccharides, indispensable fat and water soluble vitamins, vital minerals. It contains more total solids, fat, protein, lactose and calcium as compared to cow milk. Buffalo milk possesses wide potential to be used in the production of a range of dairy products. On account of the differences in physico-chemical and biochemical properties between buffalo and cow milk, conventional processing technology and equipment for cow milk may not be suitable for buffalo milk processing. Changes and modifications must be considered for making certain products. This chapter aims to highlight the nutritional profile including amino acid profile, lipid profile and mineral composition; physico-chemical properties and potential of buffalo milk in the dairy sector.

Introduction

In simple terms, business refers to buying and selling of products. Business would define itself as an organized effort through companies aimed at supplying consumers with products and services in a return for monetary compensation. However, this simplistic definition is insufficient to assess the impact of the environment on modern international business operations. For easy understanding, modern business can be explained as a complex field of industry and commerce involving activities associated with both production and distribution. These activities cater to the wants and desires of society at one extreme and provide profit for business firms at the other.

Indian leaders, particularly the first Prime Minister Dr. Jawaharlal Nehru, who had conceived the theory of five year plans, had regarded high economic growth and higher income among poor population as the foremost objectives before the newly independent nation. To achieve these objectives, government was made to play a very important role, and since 1951, a series of five year plans have been the driving forces behind the economic prosperity of the country. Despite of experiencing growth in 1950s, it was still lower than that of many Asian countries. Between 1951-79, the Indian economy had grown at an average rate of 3.1 percent a year at constant prices. Growth in the industrial sector had been about 4.5 percent a year, while for the agriculture sector, growth was 3.0 percent over that period. Many of the political leaders associated with the movement were also in support of a socialistic development pattern. They favored state interference in the economy. They encouraged state ownership of core industries.

Introduction

The economic choice of any process is the criterion for efficient utilization of the by-product that is produced along side of main product. During manufacture of major dairy products, the dairy industry also ends up in producing different by-products. Various by-products of dairy industry are skim milk, butter milk , whey and ghee residue. Dairy industry is particularly confronted with the problem of economic utilization of whey and ghee residue. The techno-economical problems associated with utilization of these by-products, is now receiving considerable attention. More efficient, cost effective and sophisticated technologies have opened up new vistas for manufacture of number of derived by-products. Further more the market for dairy by-products, as an ingredients in other consumer food products like snacks, ready meals and microwavable food products, has been growing.

Accurate mix calculation is essential for achieving the desired composition, quality, cost, and regulatory compliance of ice cream. This chapter introduces methods used to calculate formulations based on fat, milk solids-not-fat, sugar, total solids, and other components. It explains the Pearson’s Square method, serum-point calculations, simple mix calculations, and least-cost formulation approaches. The chapter demonstrates how mathematical formulation can translate ingredient specifications into a practical manufacturing recipe. Proper calculation helps maintain consistency between batches while controlling ingredient costs and product characteristics. The chapter therefore provides a practical foundation for students, technologists, and manufacturers involved in formulation development, production planning, cost optimization, and quality management.

1. Calibration of Milk Butyrometer

Introduction

Butyrometer is used for determination of fat for milk and milk products by Gerber method. The milk butyrometer is a graduated vessel, which are designed in such a way that the internal volume of each unit is 0.125 ml which is corresponding to 1 percent fat. Sometimes due to manufacturer’s error, the volume of one unit of milk butyrometer is not exactly equal to 0.125 which leads to subsequent error in results in milk fat. So before starting to use a new butyrometer, it is essential to calibrate for its efficiency in the laboratory. Mercury is used to calibrate milk butyrometer.

Apparatus

Milk butyrometer (0 – 10% graduation), analytical balance

Abstract

Camel milk has been known in Asia and Africa for 5000years for its benefits for human health. It is the closest to human mother’s milk and safe for children. Research studies around the world have confirmed that camel milk has better nutritional value as it exhibits many unique and amazing health-promoting properties as compared to cow milk. This milk is considered as a complete food and can be consumed exclusively while meeting all nutritional requirements. Many studies have reported that camel milk contains very high concentrations of mono- and polyunsaturated fatty acids, low fats, cholesterol, and lactose. It also contains higher amounts of minerals (calcium, iron, magnesium, copper, zinc, and potassium), vitamins B2 and C as compared to cow milk. It does not contains beta lactoglobulin and beta casein that are present in cow milk and that are the main cause of allergy in certain human population. Furthermore, camel milk contains various protective proteins that exert antibacterial, antiviral, and immunological properties. It possesses unique, powerful immune system–boosting components that would exert potential health benefits. It is an alternative for people suffering from cow milk allergy. So camel milk can be considered as next generation super food.

Introduction

Carbohydrates are the most common source of energy for all living cells, which, in presence of light, are formed by the green plants from CO₂ and water during photosynthesis. It canbe said that ‘light’ is theultimatesourceof energyrequired for all livingcells.Glucose,a monosaccharide,plays a centralroleincarbohydrate metabolismin all plants, animals and manymicroorganisms. Glucose is derived from the polysaccharides (starch, glycogen) and non-carbohydrate sources (amino acids, glycerols, etc.) during metabolism and ultimately converted either into carbondioxide and water orotherintermediateproducts.Complete oxidation of glucose to CO₂ and water provides ~2,840 kJ/mol energy. The other monosaccharides such as fructose, galactose, mannose, etc. are also important molecules in carbohydrate metabolism.

The cradle-to-grave dairy supply chain includes a number of operations that result in greenhouse gas (GHG) emissions related to milk production. These activities broadly include the use of agricultural inputs like fertilizers, fossil fuel for the production of animal feed and fodder, processing concentrates in cattle feed plants, enteric fermentation, manure management, and post farm gate activities like processing milk at dairy cooperative societies, milk unions, its conversion into different milk products, and their distribution through retail supply chains.

3.1. Introduction 

Calves are the future replacement stock of dairy farm. The raising of calves, an important operation of the dairy farm requires a great deal of managemental skill, application and constant attention. Any negligency results in increased calf mortality, poor growth and development of the calves. So, care of the calves is important for success of the dairy farm.

5.1. Introduction

A dry cow is a cow that is not producing milk. Usually cow remains in-milk for about 305 days (average lactation length), after that it remains for a period of about 60 days in dry condition (not giving milk) called dry period. Dry period is critical for a cow for regeneration of her udder and reserve nutrients for the next lactation, otherwise, milk production will not be upto the mark and the cow may suffer from several metabolic diseases after parturition. A dry cow is just as valuable as a lactating cow, therefore should be not neglected. A dry cow management programme includes nutrition, general management and health control programme.

4.1. Introduction

Heifers are young female cattle from 12 months of age to first calving. Heifer management is important as they are future cow of the herd. Proper growth and body condition of the heifers are associated with their early sexual maturity and age at first breeding, and their later productive and reproductive performances, when they become cow. Thus, proper care and management of the heifers is necessary to establish a good dairy herd.

6.1. Introduction

Care of cows at and after calving is vital for successful birth and maintaining the cow and calf in proper health condition. Calving is a high risk event in terms of both cow and calf health, and is associated with most of the health problems. New born calves are born sterile and it gets infection from the surroundings which depends on the maintenance of hygienic environment and care of the just after birth. The fresh cows are susceptible to a number of metabolic diseases and infections due decrease immune status of the cow. Preparation and care during this period will minimize sickness and death of the cow and calf.

7.1. Introduction

The lactating cows are important assets of a dairy farm. The profitability and viability of the dairy farm mainly depend on the overall milk production. The lactation cycle of the cow can be divided into different phases for efficient management as milk production, DM intake and body weight vary considerably during the different phases. In the early lactation, lactating animals loose body weight drastically and they are prone to various metabolic disorders. Efficient nutritional management during lactation is required to support the high milk production, persistency of lactation and health of the cows. Another most important event is the post partum oestrus and subsequent conception, which depends on the care and management of the cows during this period. Therefore, proper care and management of the lactating cows are essential to harvest maximum amount of milk from healthy cows in a sustainable way.

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.

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.

    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

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.

Abstract

Colostrum is the lacteal secretion after the birth of the new-born. It has a very different composition from milk, naturally designed to build immunity, promotes growth, and protects new-born mammals from external factors. It has a higher amount of protein and fat which provides the building blocks for growth. The higher macro and micro nutrients present in it help in various inter and intracellular activity and metabolism. Colostrum is fully loaded with various immune-boosting factors and growth factors, among them immunoglobulin, lactoferrin, lysozyme, insulin-like growth factor, vitamins have the most importance. Colostrum can fight against various diseases, bacteria, viruses, toxins, and can build a healthy immune system and gastric digestion system in the human body. Bovine, non-bovine, and human colostrum have almost all components in common but at different compositions. Non-bovine colostrum is comparatively less explored than bovine colostrum. Deep research and marketing can bring this nature’s gift for the goodness of human beings.

Cheese is a milk product of ancient origin and portrays the ethos of civilization and its cultural evolution. Cheese is one of the oldest foods of mankind. It is commonly believed that cheese evolved in the Fertile Crescent between the rivers Tigris and Euphrates in Iraq some 8000 years ago. The so-called Agricultural Revolution occurred here with the domestication of plants and animals.

It seems that the cheese originated accidentally as a result of the activities of nomadic tribes. Since animal skin bags were a convenient way of storing liquids for nomadic people, these were used for storing surplus milk. Fermentation of the milk sugars in the warm climate prevailing would cause the milk to curdle in the bags. The swaying animals would have broken up the acid curd during journeys, to produce curds and whey. The whey provided a refreshing drink on hot journeys, while the curds, preserved by the acid of fermentation and a handful of salt, became a source of high protein food supplementing the meager meat supply.

This activity gave rise to the assumption that cheese was evolved from fermented milks. It is perhaps more probable that the crude fermentations progressed in two ways. In one direction towards the production of liquid fermented milks such as dahi, yoghurt, laban, koumis and Kefir and in the other direction through the drainage of whey through a cloth or perforated bowls, to leave solid curds which when salted became cheese.

It was a prominent article of the Greek and Roman diet as much as 2500 years ago. It is referred to in the Old Testament several times.

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.