eChapters

The proximate system of analysis consists of the analytical determinations of water (moisture), ash, crude fat (ether extract), crude protein and crude fibre. Nitrogen-free extract (NFE), more or less representing sugars and starches, is calculated by difference rather than measured by analysis.

Water

1. Water constitutes about 70 percent of an adult’s body weight and water (moisture) is the predominant constituent in many foods.
2. All foods contain varying amounts of water in the range of 20 to 90%.
3. The hypothalamus is a brain center that controls activities such as maintenance of water balance, regulation of body temperature, and control of appetite.
4. Moisture content of some foods

Introduction

Food adulteration compromises quality of foods and causes human health hazards is a menace mankind had been facing since ages. Spice adulteration scandals in the year 2004, Horse gate scandal in Europe during 2013 are famous examples of food fraud. Various forms of food adulteration and cheating such as substitution of cheaper food components in place of original product, addition of non-permitted substances, and false claims by misbranding or mislabeling are prevalent from time immemorial (Spink et al 2019).

Synonyms : Aphthous fever; Contagious aptha;  Panzootic aptha; Vesicular aptha.

Foot and mouth disease (FMD) is an acute, highly communicable viral disease affecting cloven hoofed animals, both domesticated and wild. It is the most contagious disease known in the animal kingdom. It is characterized by vesicular eruptions in the epithelium of the buccal cavity, tongue, nares, muzzle, feet, teats and udder.

A footnote is a notation at the bottom of the page in a printed document. Footnotes are usually presented in smaller print than the dominant text, and they are used for a variety of purposes. The “foot” in “footnote” refers to the fact that the notation is located in the “footer” or “bottom” of the document. A similar concept is the endnote, a note which is provided at the end of a document, rather than at the bottom of a specific page. When a text has footnotes, they are indicated with various symbols or superscript numbers. The asterisk symbol, *, is a common symbol for footnotes, but a variety of symbols including daggers, †, may be used. In a text with a lot of footnotes, numbers are usually used to indicate footnotes, so that the reader can keep track of what is going on. Endnotes are typically indicated with numbers, to make it easier for people to look them up.

Different style manuals have different rules about using footnotes, and it is important to follow style guidelines when submitting material for publication. Because footnoting can get very complicated, most style guidelines devote at least a few pages to the footnote. Some people avoid using footnotes at all, while others relish footnotes, because footnotes provide a great degree of freedom when they are used well.

Communication is the fundamental process of conveying information between two or more individuals or within a group. Communication process involves distinct components: a sender, a recipient, a message, and a medium through which the message is transmitted. Importantly, the exchange of a message frequently carries emotional and cultural connotations. Variations in perception and interpretation among recipients may result in disparities between the intended message of the sender and its actual understanding by the receiver, thereby underscoring the nuanced nature of communication dynamics

Intra-personal Communication

Intra-personal communication involves an individual engaging in self-talk or internal dialogue. This process is an unconscious act inherent to all human beings, wherein individuals contemplate various plans and problems of daily life within their minds. People often discuss matters internally before sharing them with others or documenting them. Intra-personal communication is so ingrained in our everyday lives that it often goes unnoticed, yet it is the fundamental form of communication. All communication originates in the human mind before being expressed in interpersonal, group, or mass communication.

Inter-personal Communication

Inter-personal communication occurs between two individuals, involving one person talking, discussing, or arguing with another. This one-to-one interaction can take many forms, such as casual conversations between friends, information exchange, persuasion, problem-solving, counseling, or simple chatting. This method is widely used in extension work, particularly with poor farmers who are often illiterate and have limited access to other modes of communication. Despite being time-consuming, inter-personal communication allows for meaningful interaction between farmers and extension workers, facilitating mutual understanding and ensuring the accurate transmission of information through feedback.

The word biscuit is derived from Danis biscoctus which is Latin for twice cooked bread and refers to bread rusks that were made for mariners (ships biscuits) since the Middle Ages. The dough pieces were baked and then dried out in another cooler oven. All biscuits are made with flour (usually wheat flour) and all have low moisture content and thereby have long shelf life if protected from moisture and oxygen. It includes items also known as crackers (that make a noise of cracking when broken), Hard sweet and semi –sweet biscuits, cookies (which is the name that originated from Dutch word koekje meaning a small cake) and wafers, which are baked between hot plates from a fluid batter. The name cookie was adopted in North America where the term ‘biscuit’ can be confused with small soda raised breads or muffins. In other countries the term cookie is used primarily for wire cut products of rather rough shape, which often contain large pieces of various ingredients such as nuts, etc. The term ‘biscuit’ is used in Britain to describe a flat, crisp, baked product; the term cookie is reserved for something softer and thicker. Cookies are made from soft wheat flour and are characterized by formula high in sugar and shortening and relatively low in water. Similar product is known as biscuit in our country. In USA the term ‘cookie’ covers any flat, crisp, baked good. Cracker is a term reserved for biscuit of low sugar and fat content, frequent bland or savoury. Crackers are usually made from developed dough whereas cookies are made from weaker flour. These foods have in common their ability to stay palatable for a long period of time. Their ease of transportation and their ready consumption without any further preparation make them high on the list of staple snacks

All bread is made by baking a dough that has two basic ingredients, flour or meal and a liquid. Bakers can use a wide variety of both components. The most common type of flour used for bread and most other baked goods is made from wheat. Wheat flour has a pleasant taste and contains a large amount of an elastic protein substance called gluten. Gluten aids in baking uniformly light bread that rises (swells) properly. Other baking flours are made from barley, rye, corn, rice, oats, soybeans, and potatoes. These flours, particularly soybean flour, may equal wheat nutritionally, but none can match wheat for creating light, even-textured bread. Hard wheat flour makes lighter bread than does soft wheat flour because it is richer in gluten. Rye and whole wheat breads are made lighter by adding white flour. The liquids used in baking include water, sweet or sour milk, yogurt, wine, and beer.

Bread is either leavened or unleavened. Leavened breads contain some substance that produces bubbles of carbon-dioxide gas. These gas bubbles inflate the dough, causing it to rise and become light and porous. Most kinds of basic breads are leavened with a fungus called yeast. Biscuits, muffins, and cakes and other pastries are leavened with either baking powder or baking soda. Unleavened bread is dry and hard. Familiar kinds of unleavened breads include water crackers, the rye crisp of Sweden, and Jewish matzoth. Whether leavened or unleavened, most breads contain other ingredients in addition to flour and a liquid. An almost limitless variety of breads can be made by adding a sweetener, shortening, cheese, eggs, meat, fruit, vegetables, seeds, or nuts. A sweetener, either sugar or syrup, is used in almost all bread for its taste or as an aid to yeast growth. Bread may also have an external sweetener in the form of a decorative glaze. The high fat content of shortening and cheese increase tenderness and flakiness in bread. Perhaps the best example is the French croissant. Eggs help leaven bread dough by adding to the bread’s lightness. They can be brushed on top of the dough before baking to create a shiny crust, as in the Jewish hallah. Some breads from many nations contain fruit, a vegetable, meat, seeds, or nuts. Examples include the fruit scone of Great Britain, the spinach paratha of India, the Southern sausage bread of the United States, the Easter sesame bread of Greece, and the almond sweet bread of Finland.

Cakes are sweet baked products characterized by high level of sugar in the formulation and hence are foods of high calorific value. Among the various ingredient used flour, sugar, shortening and egg are the essential ingredients for cake manufacture. The optional ingredients are baking powder, milk, fruit etc. For cake manufacture the selection of ingredients is of paramount importance.

Introduction

In the existing socio-economic scenario, economic independence is considered as one of the main status indicator in the society. Women especially in rural areas are the deprived section of the society on account of their dependence on others for economic reasons. This necessitates generation opportunities so as to make them economically independent. Moreover, women’s contribution to national development is crucial. The process of development would be incomplete and lopsided, unless women are fully involved in it. Many innovations have failed due to non-satisfaction of women on the perceived attributes of innovations. So, it is necessary that they should be informed, trained, convinced of a technology primarily.

Farm women can’t emerge as a good entrepreneur, if they are not equipped with any skill, knowledge, education and information. So, research studies are essential to assess the training needs of them to become a successful entrepreneur. In order to know the training needs of farm women for entrepreneurial development, and the constraints faced by them to become a good entrepreneur.

Introduction

The procedure of making or building casting in the sand mould cavity or any other material is known as a foundry. This is the cheapest method of shaping the metal. Foundry exercise offers the technique of creating casting in moulds shaped in both sand or different material. A foundry is a manufacturing plant where castings are created by softening metal, emptying fluid metal into a shape, then, at that point, permitting it to harden. Regardless of whether we have not at any time been to a foundry or even know what one resembles, we are encircled by the metal castings. There is a decent possibility that we are perusing this under 10 feet from one.

Moulding

Introduction
Sustainability in the digital age represents a transformative approach to addressing the critical challenges of economic growth, environmental stewardship, and social equity. For India’s vision of “Viksit Bharat” (Developed India) by 2047, integrating sustainable practices within the digital transformation framework is pivotal. This foundation has three primary pillars: technological innovation, inclusive development, and environmental responsibility.
Role of Technological Innovation: Digital technologies have emerged as essential drivers of change, reshaping traditional methods of governance, education, healthcare, and industrial processes. Initiatives such as Digital India have laid the groundwork for building a robust digital infrastructure, empowering millions of Indians, especially in rural areas, with access to essential services. Artificial intelligence (AI), the Internet of Things (IoT), and blockchain technology are transforming industries by enabling smarter decision-making, improving resource efficiency, and promoting transparency. For instance, AI-powered systems are being used to optimize energy grids, reduce waste in supply chains, and monitor environmental conditions. These advancements directly contribute to sustainability by minimizing resource consumption and mitigating environmental degradation. IoT-enabled smart cities enhance urban planning, improve waste management systems, and facilitate efficient energy use. India’s Smart Cities Mission exemplifies the integration of such technologies, targeting sustainable urbanization to accommodate the growing population without overburdening the environment.

Community mobilization stands as one of the most powerful tools for social transformation and sustainable development. It represents the collective action of communities working together to address their challenges, harness their strengths, and create positive change from within. At its essence, community mobilization embodies the principle that lasting development must emerge from communities themselves rather than being imposed by external forces. This chapter explores the fundamental concepts, historical evolution, and practical aspects of community mobilization, providing a comprehensive foundation for understanding this critical approach to community development that has shaped societies across cultures and continents for millennia.

The Context

A series of interventions initiated in mid-1960s that led to the green revolution in cereal production transformed the country from a situation of food def iciency to self sufficiency. The green revolution was however, restricted to productivity improvements in cereals especially wheat and rice in the initial decades, primarily grown in irrigated regions. In subsequent decades, productivity increased in other crops, namely oilseeds, sugarcane, cotton, fruits and vegetables. The Green Revolution generally by passed India’s vast rain fed tracts, especially arid zones, hill and mountain ecosystems and coastal regions, thus exacerbating agro-ecological and economic disparities. Although self sufficiency was attained in food grain production, potential of different crop varieties are yet to be attained. The main features of the green revolution were:

• exclusive focus on food grains

• intensive use of water, fertilizer and pesticides to maximize yields from High Yielding Varieties (HYVs)

• practically no focus on sustainability issues

• benefited the resource-rich and large farmers and

• dependent on few technological options focusing on hybrids, changes in plant architecture.

Pulses are widely acknowledged as superfoods, three times the protein in rice and double in wheat. Besides, they are also rich in complex carbohydrates, micronutrients, protein and B-vitamins and minerals like folate, iron, calcium, magnesium, zinc and potassium. High iron content in some pulses also minimizes the risk of anaemia. Long storability without loss of nutritional value, low prices, and broader availability make pulses an affordable source of minerals, and protein, thus contributing to food security at all levels of society in India. Besides human nutrition, pulse crops are also utilized as fodder and fuel for farm households.

Abstract

Drying is a widely used method of food preservation. It leads to some structural changes in the dried material resulting in poor quality and rehydration. Freeze drying, though a costly process, reduces water activity without exposing the food material to high temperatures, eventually retains the original quality to a great deal. Moisture in the foods is frozen to ice which is sublimated under low pressure. Low pressure helps to vaporise the ice without transforming it to liquid, hence leaving the food structure porous in nature. The food is claimed to preserve the nutritional, sensory and re-constitutional qualities.

1.1 INTRODUCTION

Most food materials are composed of a very high percentage of water, which can be as high as 95%, and this makes them susceptible to microbial activity. Microbial activity spoils the products, leaving them useless for human consumption. It not only changes their taste and color but it may also develop toxins, thus making them unsafe. There are various methods for preserving food but in order to make them shelf stable, removing water from foods helps keep them from spoiling for a longer period of time.

Introduction
Freezing is one of the oldest and most widely used methods of food preservation, which allows the preservation of taste, texture, and nutritional quality in foods better than any other methods. The freezing process is a combination of the beneficial effects of low temperatures at which micro-organisms cannot grow, chemical reactions are reduced, and cellular metabolic reactions are delayed. Freezing is generally referred to as a unit operation in which the temperature of food is reduced below the freezing point and a proportion of water undergoes a change in state to form ice crystals. Immobilization of water to ice and the resulting concentration of dissolved solutes in unfrozen water cause a lowering of water activity of the food. Thus, reduction in water activity and use of low temperatures coupled with some pre-treatments like blanching is the basis for food preservation by freezing. Fruits such as strawberries, oranges, raspberries, black currants, and vegetables like green peas, green beans, sweet corn, spinach, carrots, sprouts, and potatoes are examples of commercially frozen fruits and vegetables.
The frozen food market is one of the largest and most dynamic sectors o the food industry. Despite considerable competition between the frozen food industry and other sectors, large quantities of frozen foods are being consumed all over the world. The frozen vegetable industry mostly grew after the development of scientific methods for blanching and processing in the 1940s. The commercialization history of frozen fruits is older than frozen vegetables. The commercial freezing of small fruits and berries began in the eastern part ofthe United States in about 1905.

Freezing is one of the most critical stages in ice cream manufacture because it creates the frozen structure while simultaneously incorporating air. This chapter explains the principles of dynamic freezing and the structural changes that occur as the mix is transformed into semi-frozen ice cream. It discusses ice-crystal formation, air incorporation, overrun, draw temperature, fat destabilization, and product condition at freezer draw. Different freezer systems and hardening requirements are examined, along with calculations related to output and overrun. The chapter also introduces ingredient feeders and ripple or ribbon systems. Understanding freezing technology is essential for controlling texture, body, meltdown, yield, and overall product quality.

INTRODUCTION

Preservation of food by drying or chemical means as by alcohol or acid fermentation and that by the use of ice is long recorded in history. With the advancement of science and the knowledge governing various unit operations in food processing, these food preservation techniques employing thermal, radiation, or low temperature or a combination of these have only got further refined as regards their viability and commercial applications. Process foods of different genre and cuisine, which include frozen foods too, are increasingly becoming popular the world over for reasons of quality, safety and year round supply of nutritious foods to cater to different niche segments of human society. Increasing health consciousness is buoying those processed foods which are preserved and stabilized using non-thermal technologies as these ensure retention of food nutrients to a better definition. Interest in frozen food also stems from need to deliver safe and nutritious foods with extended shelf-lives.

Freezing is one of the easiest and least time consuming methods of food preservation. The freezing process is a combination of the beneficial effects of low temperatures at which microorganisms cannot grow, chemical reactions are reduced, and cellular metabolic reactions are delayed.

Methods of Freezing

1. Sharp freezing (slew freezing)

In sharp freezing commodities are exposed at -15 to -29⁰C. It required 3-72 hrs. Here the thawed tissue cannot regain its original water content. The ice crystals formed are large and rupture the cells. The thawed tissue cannot regain its original H₂O content.

Frequency distribution table is a statistical table which shows the sets of all distinct values of the variables arranged in order of their magnitude either individually or in groups with their corresponding frequencies side by side.

Need for frequency distribution table

1. To condense the data
2. To provides quick reference for the entire data
3. To facilitate quick & easy statistical analysis of data
4. To reveal the pattern within the data