eChapters

Enzymes are biological catalysts that regulate biochemical reactions and control metabolic pathways. This chapter explains how metabolomics can contribute to the discovery and functional characterization of enzymes by identifying changes in metabolite concentrations associated with enzymatic activity. Comparative metabolomics, gene knockout experiments, stable-isotope labeling, and multi-omics integration are discussed as approaches for linking metabolites with enzyme functions. Analytical platforms such as GC–MS, LC–MS, and NMR, together with databases including KEGG, BRENDA, HMDB, and METLIN, support metabolite identification and pathway analysis. The chapter also considers experimental validation, bioinformatics, challenges associated with unknown metabolites, and future applications involving artificial intelligence and computational biology.

Veterinary anatomy is a cornerstone of veterinary education, essential for diagnosing and treating animals. It imparts knowledge about origin, form, structure and function in animals. Traditionally, veterinary anatomy education has been delivered through lectures, dissections, and practical sessions. Anatomy teaching has undergone significant changes to keep up with advances in technology and to cater for a wide array of student specific learning approaches. In recent time a generalized decline in dissection based veterinary anatomy teaching has been observed due to implementation of new curriculum of veterinary anatomy by VCI, legal and ethical issues, unavailability of ethically sourced cadaver, reduced teaching hour to veterinary anatomy, reluctance of students as well as teacher to handle formalin fixed cadavers and specimens etc. Even with the introduction of modern instructional technology and improved teaching methods, dissection continues to remain a foundation of veterinary anatomy teaching. Conventional methods, while foundational, face significant limitations, including the availability of resources and variability in hands-on experiences. As veterinary education evolves, there is a growing recognition of the potential for disruptive technologies to address these challenges and enhance learning outcomes.

INTRODUCTION
Efficient management of record-keeping, inventory, finance, and human resources is crucial to the success of any agro-processing business. Proper recordkeeping ensures accurate documentation of transactions, operations, and adherence to legal and regulatory standards, promoting transparency and accountability. Effective inventory management is vital for maintaining appropriate stock levels of raw materials, work-in-progress, and finished products, which directly affect production efficiency, cost management, and product availability. In financial management, sound practices allow businesses to monitor cash flow, manage costs, evaluate profitability, and secure necessary capital for growth and day-to-day operations.
Moreover, human resource management plays a significant role in building a skilled, motivated workforce by ensuring proper staffing, providing employee training, and adhering to labor regulations. Collectively, these components are essential for the smooth functioning of an agro-processing business, contributing to enhanced operational efficiency, financial health, and sustained growth.
RECORD KEEPING FOR AGRO-PROCESSING
Record-keeping in agro-processing is a fundamental aspect of the food production and manufacturing sector. It ensures traceability, adherence to food safety regulations, operational efficiency, and transparency in converting raw materials into finished goods. Well-maintained records are crucial for managing quality control, inventory, and ensuring compliance with health and safety standards.
Key Areas and Types of Records Kept in Agro-Processing
Below are the key areas and types of records that should be kept in agroprocessing:

Introduction

Equines are a fascinating and diverse group of mammals that have played a significant role in human history and continue to do so today. From the majestic horses used for transportation, sport, and work, to the hardy donkeys and mules used for farming and packing, equines have been an essential part of human societies for thousands of years. Equines are social animals and usually live in groups or herds. They form strong bonds with their herd members and communicate with each other through a range of vocalizations, body language, and scent cues. Equines also engage in playful behaviour, particularly when they are young. They can be seen running, kicking, bucking, and frolicking in the fields as a way of expending energy and developing physical coordination [6].

This is a group of mammals that belong to the family Equidae known for their slender legs, hooves, and long faces. Large, soft and expressive eyes, a velvety muzzle, a forelock adorning a smooth face these are just a few of the attributes of the equine head that beckon horse lovers. The equine head, which accounts for 10% of a horse’s total weight, houses a series of intricate turbinates within the nasal passageways. Turbinates are a network of bones, vessels, and tissue that warms, humidifies, and filters the air the horse inhales. In addition, seven air-filled sinus cavities called the paranasal sinuses sit on each side of the head, above, below, and between the eyes. A young horse starts out with teeth that extend up into the sinuses; with wear and age, the teeth descend into the mouth. Eventually, in a horse’s golden years, the sinuses are mostly empty of teeth.The head also contains a plexus of nerves and blood supply in addition to the eyes, ears, nostrils, lymph nodes, guttural pouches, brain, and more than 30 bones[6,7].

1.1 Introduction In parallel with the expansion of organically cultivated land and low-input agricultural system, there is an increasing demand for crops that have promising potentials to be grown successfully in these systems. Buckwheat is generally sown in smaller areas, which may be found suitable for low-input agricultural systems. Buckwheat is a fast-growing crop with a variety of utilizations. Buckwheat, one of the pseudo and minor-cereals, has the ability to satisfy the rapidly rising population’s ever-increasing food need in the nation’s hill regions in the context of changing climatic conditions. It is also known as common buckwheat or Fagopyrum esculentum, it is not a cereal grain, but rather a seed that is related to rhubarb and sorrel. It has a unique nutty flavour that makes it an excellent ingredient in a variety of dishes. It is known in India by a variety of names, including ogal, phaphar, bresha, mittahe dyat, dro, and brotitae.

Quality control significantly affects manufacturing output, productivity and operational excellence. Techniques such as Six Sigma and DMAIC systematically identify the occurrence and causes of defects while developing solutions to reduce them. Total Quality Management further improves quality and lowers costs associated with defects, wastage and rework. Common tools employed in garment manufacturing include flow charts, check sheets, histograms, Pareto charts, scatter diagrams, control charts and cause-and-effect diagrams. Their systematic application supports continuous process improvement and better economic performance. Because the textile and apparel industry faces intense competition in domestic and global markets, manufacturers must shift from simple product inspection towards integrated, preventive and continually improving quality-management systems.

Definition of Virus
Viruses are very small (submicroscopic) infectious particles (virions) composed of a protein coat and a nucleic acid core. They carry genetic information encoded in their nucleic acid, which typically specifies two or more proteins. Translation of the genome (to produce proteins) or transcription and replication (to produce more nucleic acid) takes place within the host cell and uses some of the host’s biochemical “machinery”. Viruses do not capture or store free energy and are not functionally active outside their host. They are therefore parasites (and usually pathogens) but are not usually regarded as genuine microorganisms.
Mathwas (1981) considers a virus as a set of one or more template molecules normally encased in a protective coat or coats of protein or lipoprotein, which is able to organize its own replication only within suitable host cells where its production is:
i) Dependent on hosts protein synthesizing machinery (ribosomes).
ii) Organised from pools of required material rather than binary fission and
iii) Located at sites which are not separated from the host cell contents by a lipoprotein bilayer membrane.

Extension is an “Out – of – School” system of education for rural people.

The term “Extension” have originated in Latin. It means stretching out.

The term “University Extension” was first used in 1866.

The person considered as Father of extension and the concept of Extension Education Process was given by Paul Leagans

The person considered as father of extension in India is K.N.Singh

The term “Extension Education” was first coined in United Kingdom

Extension education is an applied behavioral science and brings about behavioral changes in human beings.

The philosophy of extension is not “What to Think?.” It is “How to think?”

Introduction

Plum, scientifically known as Prunus domestica, is a popular fruit-bearing tree belonging to the Rosaceae family. Renowned for its delicious and versatile fruits, plum cultivation has a long history that spans different cultures and regions. Plums are enjoyed worldwide both in their fresh form and processed into various culinary delights. Because of its temperate character, plum is a significant crop in hills, but it is just a modest fruit crop in Punjab and the north Indian plains. Because it requires little freezing and has a shorter juvenile phase, it is ideal for planting as a filler fruit plant in mango, litchi, and pear orchards. There are a few solid-block plum plantations in the Amritsar, Fazilka, Ambala, and Kurukshetra regions as well. Due to the trees’ abundant f lowering, high fruit set, and early ripening habits of varieties suitable for plains, they are extremely productive. A fully developed tree can typically produce 50–60 kg of fruit. Plum trees are deciduous and typically bear fruits during the summer season. The fruits come in a wide range of colors, including shades of purple, red, yellow, and green, with variations in size and flavor. This diversity in plum varieties allows for a delightful selection for consumers, catering to their individual preferences.

Introduction

Pesticide in broad term refers to “killer of pests” but is an agent used to control, prevent, destroy, repel and mitigate a pest. Pesticides are thus poisonous substances intentionally applied in situations, which harbour so-called pests. Agriculture including poultry and veterinary (i.e. raising of crops and protection of produce and storage), health (public places-hospitals, restaurants, gardens cinema halls etc.), transportation (shipment, air rail and road transport) are some areas where pesticides are used extensively as spot application, fumigation, aerial and field sprays, soil treatments etc. Plant protection comes to be recognized as an equally important factor of agriculture production as improved seeds, fertilizers and irrigation. Pesticides over time get accumulated in the environment and contaminate all systems i.e. air, water, soil, plants, animals and micro-organisms on being transported from one system to another leading to biomagnifications.

The fate of a pesticide in the environment and the entities, which come in contact, is depicted in the Fig. 1 reflecting the pollution and contamination. Pesticides during manufacturing, transportation, storage and actual use enter the biotic and abiotic components of the environment through air, water and soil and disturb the cohesion causing great disaster sometimes. Pollution is defined as undesirable change in physical, chemical and biological characteristics of air, land and water. This change may or will harmfully affect human life or that of desirable species, industrial process, living conditions and cultural assets. It may or will waste or deteriorate our raw material resources. Pollution increases burden of human society causing loss of resources through unnecessary wasteful exploitation, the cost of pollution abatement and deterioration of human health.

Introduction

A significant nut that originated in Central Asia, the almond (Prunus communis) is now grown all over the world in hot, dry Mediterranean climatic zones (Monteiro et al., 2001). The Rosaceae family it belongs to (Martinez-Gómez et al., 2007). Number of chromosomes is 2n = 16. Today, the USA produces the most almonds, followed by Australia and Spain. Due to genetic, ecological, and processing-related variables, different cultivars of almond exhibit varied chemical profiles. Regular nut consumption has been linked to health benefits, particularly in the fight against cardiometabolic disorders (Massantini et al., 2022). Consuming nuts has been shown to have beneficial benefits against a variety of illnesses, including obesity, hypertension, diabetes mellitus, and metabolic syndrome, according to epidemiological research and clinical trials (Chen et al., 2006). Regular nuts consumers also exhibit better metabolic profiles and smaller waist circumferences. The edible portion of an almond, known as the almond kernel, is made up of two enormous cotyledons that are protected by an exterior hull and an inside shell (Aydin et al., 2003). When the seed reaches maturity, the hull opens and the seed readily separates. Approximately 50% of almonds are lipids, 25% are proteins, and 20% are carbs. Almonds also have a low moisture content and a variety of minor beneficial components (Ahrens et al., 2005). Almonds’ macro- and micronutrient composition is related to their consumption’s positive effects on health (Esfahlan et al., 2010). The lipid profile can be highlighted as one of the components with beneficial health properties. According to Roncero et al.(2020), monounsaturated fatty acids (MUFA) make up 60% of the lipid profile, followed by polyunsaturated fatty acids (PUFA), fibre, vitamins, minerals, phytosterols, and polyphenols.

Introduction to DHAN Foundation

DHAN (Development of Humane Action) Foundation is a grassroots action agency working with poor communities in villages. Enhancing poor people’s livelihoods in sustainable way and enabling the poor communities are the focus of the programmes. The mission of the organisation is to build institute for innovation in the development work and reaching significance to bring positive changes in the lives of poor. DHAN Foundation was established in year 1997 as spin off institution of PRADAN (Professional Assistance for Development Action) based at New Delhi.

DHAN Foundation believes in building the capacity of people in planning, organizing, conflict resolution and implementation of development programmes. This will be possible only when people are encouraged to work on a single thematic focus, either through micro finance or small scale irrigation theme, for a substantive period to pick-up the generic skill of developing viable alternatives to their stalemate situation; DHAN Foundation initiatives are aimed at building people constituencies around specific activity, these institution will move into civic programmes like health, Education and Information Technology to address their member’s needs. Simultaneously DHAN Foundation as a mothering institution promotes thematic organizations as subsidiaries to upscale the matured themes and continue the promotional role to sustain the people’s organization in the specific theme for e.g. micro finance or irrigation.

2.1. Introduction

The engine is the source that generates power. It transforms chemical energy in fuel into mechanical energy for power. Diesel internal combustion engines are invariably used in all the tractors. In these engines, very high compression of the air ignites the fuel as compared to spark plug that ignites fuel in petrol engines. The air in the diesel engine is compressed with a compression ratio typically between 15 and 22 resulting in a 40 bar (about 600 psi) pressure as compared to 8 to 14 bar (about 200 psi) in the petrol engine. This high compression heats the air to 550°C (1022°F). At about this moment, small droplets of fuel are sprayed in an atomized form directly into the compressed air in the combustion chamber.

2.2. How does it work?

Any engine will work with four strokes, namely suction, compression, power and exhaust (Fig 2.1). It will also complete two revolutions of the crankshaft. In the suction stroke, pure air is drawn into the cylinder through the inlet valve. The exhaust valve gets closed and the crankshaft completes half a revolution. In the compression stroke, the piston moves up while the valves remain closed. The air which is drawn into the cylinder during the suction stroke is compressed. There is a rise in temperature. The hot air ignites the fuel injected into the cylinder. The crankshaft again completes half a revolution. In the power stroke, the hot products of combustion, viz., carbon dioxide and nitrogen expand. The piston is forced down. The valves remain closed and the crankshaft completes half a revolution. In the exhaust stroke, the exhaust valve opens while the piston reaches the lowest point of travel. Then the burnt gases are swept out.

4.1 Introduction

Water pollution is the contamination of water by an excess amount of a substance that can cause harm to human beings and/or the ecosystem. The level of water pollution depends on the abundance of the pollutant, the ecological impact of the pollutant, and the use of the water. Pollutants are derived from biological, chemical, or physical processes. Although natural processes such as volcanic eruptions or evaporation sometimes can cause water pollution, most pollution is derived from human, land-based activities (Figure 4.2). Water pollutants can move through different water reservoirs, as the water carrying them progresses through stages of the water cycle (Figure 4.1). Water residence time (the average time that a water molecule spends in a water reservoir) is very important to pollution problems because it affects pollution potential. Water in rivers has a relatively short residence time, so pollution usually is there only briefly. Of course, pollution in rivers may simply move to another reservoir, such as the ocean, where it can cause further problems. Groundwater is typically characterized by slow flow and longer residence time, which can make groundwater pollution particularly problematic. Finally, pollution residence time can be much greater than the water residence time because a pollutant may be taken up for a long time within the ecosystem or absorbed onto sediment.

India is the second largest producer of fruits and vegetables. The area under fruits alone is 32.05 lakh hectares with a production of 329.55 lakh tones. Jammu and Kashmir is the most important horticultural state with unique temperate fruit and European type of vegetable crop production. The total area during 2005-06 under the fruit crops in the state was 2.83 lakh hectares with a production of 1504.01 thousand metric tones (Table 1). Almost 45 per cent of economic returns under agriculture sector are contributed by horticulture, thereby adding 7 per cent to the Gross State Domestic Product (Anonymous, 2007). Among the fresh and dry fruits, apple and walnut, respectively, are the most important fruit crops in the Jammu and Kashmir. However, there is a wide gap between the present yield and the potential yield of fruits. One of the limiting factors for this gap in fruit production is severe attack of arthropod pests and diseases affecting yield and quality. Unlike agricultural crops, horticultural crops are grown as perennial monocultures, therefore, harbor the insect pest and disease problems that are entirely different and complex in nature. These two factors impose huge losses upon horticulture in terms of alleviated production, reduced quality and cost of management.

Introduction

Although the concept of IPM, with emphasis on minimum use of pesticides; is well established and widely practiced in India pest population still continue to be unabated, often reaching to alarming levels. Out breaks of Spodoptera litura and hairy caterpillar, Amsacta moorei have been recorded in soybean and kharif crops recently during 2002 & 2004 in Madhya Pradesh and Rajasthan, respectively. Outbreaks of Helicoverpa armigera populations are well known, appearing more frequently since past few years (1987-88, 1995-96, 1997-98 & 2001) doing extensive damage in cotton and pulses. in many parts of the country. Failures in controlling these populations, even by most potent insecticides, have raised a serious doubt on the success of present day pest management practices aimed to kill the pest in immature larval / egg stage, when infestation spreads out in large areas. Insecticidal treatments require wide coverage of crop area to control them effectively. Insecticide resistance in pest species and destruction of natural enemies are obvious problems, since chemicals are applied indiscriminately to entire crop ecosystem including the non-target beneficial bicontrol species. How to minimize use of insecticide in pest control is often a question of major concern to the entomologists.

Starter cultures were unknown until 1878, when Lister isolated pure cultures of the lactic acid bacteria responsible for milk acidification. In the 1980s, improvements to standardization and ripening of butter were made by introducing pure starter cultures. During the period 1910-20, Orla-Jensen, von Freudenreich, Sherman, Hammer and other dairy microbiologists prepared pure cultures for fermented milks. Commercial production and use of starter cultures grew rapidly and was widespread at the beginning of the 20^th century.

Dairy starters are the ‘heart’ of fermented milk products, the most crucial component in the manufacture of high-quality fermented milks. The cultures are harmless food-grade microorganisms, active bacteria intentionally grown in milk or whey or other formulated media which impart desirable and predictable flavour and texture to fermented dairy products.

The dairy microorganisms employed in milk fermentation are single-strain or multiple-strain cultures of lactic acid bacteria, producing different types of fermented milk products. Usually, one or two strains dominate the milk environment. Individual strains can be selected in advance for their resistance to both bacteriophages and antibiotics. Mixed starter cultures are used to ensure that fermentation will continue after a bacteriophage attack. Bacteriophages are highly strain-specific, and if the dominant strain in a mixed-strain starter culture succumbs to an attack, the phage-resistant mutant or the next dominant culture maintains a satisfactory rate of lactic acid production.

Fourth-generation biofuels, also known as advanced liquid biofuels, represent a progression of biofuel production leveraging advanced technologies (Chiaramonti & Maniatis, 2020). They incorporate the concept of “carbon capture and storage (CCS)” at both the feedstock and processing levels. Utilizing non-competitive feedstocks like algal biomass, cellulosic materials, and genetically engineered microorganisms, 4G biofuels ensure renewable and sustainable production without relying on arable land or food crops. The feedstock is designed not only to enhance processing efficiency but also to capture more carbon dioxide as the crop grows. Thermochemical processing methods are coupled with CCS technologies, which direct the generated carbon dioxide into geological formations or storage areas such as depleted oil fields or mineral storage as carbonates (International Renewable Energy Agency [IRENA], 2021). Fourth-generation biofuels have the potential to significantly reduce greenhouse gas (GHG) emissions and can even achieve carbon neutrality or negativity compared to previous generations of biofuels. This concept aligns with the idea of “Bioenergy with Carbon Storage (BECS)” (Demirbas, 2010). These advanced biofuels are currently in the development and experimental stages, encompassing various applications related to technology, processing, and feedstock. The primary feedstock for fourth-generation biofuels production consists of genetically engineered high-yielding biomass with low lignin and cellulose contents, addressing the challenges encountered in second-generation biofuels production. Alternatively, metabolically engineered crop plants with lower lignin, high oil contents facilitate enhanced carbon capture capabilities, and improved cultivation, harvesting, and fermentation processes and can significantly enhance biofuels production (Dutta et al., 2014).

Composting explains the biological decomposition of organic materials and its importance for soil fertility, nutrient recycling, and sustainable farm management. The chapter introduces stages and types of composting, including anaerobic, aerobic, and vermicomposting systems, and discusses physical, chemical, biological, economic, and social benefits. Major methods such as Indore, Coimbatore, Bangalore, NADEP, sugarcane trash composting, fermented mixed compost, and crop-residue composting are presented. Factors affecting decomposition, including carbon-to-nitrogen ratio, shredding, moisture, and temperature, are examined. The chapter concludes with vermicomposting, earthworm roles, materials, preparation, developmental phases, and essential conditions required for effective vermicompost production. with emphasis on practical farm-level management practice systems.

Introduction

Phosphorus (P) is a major nutrient in crop production, but is also a major constraint due to its low bioavailability in soils. It is 11th most abundant element on earth’s crust and a  vital component of DNA, RNA, ATP and photosynthetic system and catalyses a number of biochemical reactions from the beginning of seedling growth through to the formation of grain and maturity. Many factors influence soil P availability like type of parent material from which the soil is derived, degree of weathering and climatic conditions.