eChapters

Introduction

It is the process of retaining food over a period of time without being contaminated by pathogenic organisms or chemicals and without losing its colour, texture, flavour and nutritious value. It involves preventing the growth of bacteria, fungi and other microorganisms, as well as retarding the oxidation of fats which causes rancidity.

Objective

• To increase its shelf life, retaining original nutritional values, colour, texture, and favour.

Introduction

The health and wellness of human being is largely dictated by the consumption of nutritious foods. Understanding the role of foods in maintaining health and cure of diseases has its roots in the ancient Hippocratic and Vedic texts as well as in the canons of Traditional Chinese Medicine (Sharma et al., 2012). Presently, the transition from a traditional to modern lifestyle, consumption of diets rich in fat and calories combined with a high level of mental stress has been the major cause of lifestyle related diseases like coronary heart disease, obesity, diabetes, cancer and hypertension (Moczara et al., 2012; Sharma et al., 2018). Various studies have linked foods as helpful in combating a number of such degenerative diseases (Sharma, 2015).Therefore, the tenet "Let food be thy medicine and medicine be thy food", quoted by Hippocrates about 2,500 years ago is receiving overwhelming interest. There are number of scientific reports emphasizing the importance of consuming biologically active ingredients present in fruits, vegetables, whole grains and legumes to reduce the risk of chronic diseases (Hasler 2002; Das et al., 2011; Sharma and Sharma 2016). Such biologically active ingredients are now popularly known as neutraceuticals. Whereas, the functional foods are the foods that resemble traditional foods but possess demonstrated physiological benefits. In some countries, however, functional foods and nutraceuticals are used interchangeably. Regardless, the main focus of such products is to improve health and reduce disease risk through prevention. The main difference of this category with pharmaceuticals is that they are multi-targeted mixtures and present at low concentration while pharmaceuticals are uni-targeted pure compounds with high dose use. Hence, an overview on the concept of nutraceutical and functional foods, their classification, development and regulations is summarized in this article.

Need to Preserve Food

Food is vital for human existence. Conservation and preservation of food is a prerequisite for food security and it provides economic stability and self reliance to a nation. The need to preserve food has been felt by mankind since time immemorial. The seasonal nature of production, long distances between production and consumption centers and rising gap between demand and supply have made this need even more relevant today. The hot and humid climate of a country like India is quite favorable for the growth of numerous insects and microorganisms that destroy stored crops and cause spoilage of food every year. Spoilage can also occur due to chemical and physiological changes in stored foods. Sea-foods, meat and poultry may carry harmful microbes and parasitic organisms that cause illnesses associated with their consumption. As in other parts of the world, India has also practiced various methods of food preservation such as sun drying, pickling and fermentation which were supplemented with more energy consuming techniques such as refrigeration, freezing and canning. Each of these methods has its merits and limitations. Man has always been on the search for newer methods to preserve foods with least change in sensory qualities. Radiation processing of food is one of the latest methods developed for this purpose.

Introduction

In this modern era, educated and health-conscious people are increasingly demanding such food products that preserve their nutritional value, retain a natural and fresh colour, flavour and texture, and free from chemical preservatives. Besides, urbanization has extensively affected the life-style of people all over the world. Competition has made their life extremely busy and time has become a very important factor. Hence, recently there has been increase in demand for ready-to-cook or ready-to-use fresh food products of fruits and vegetables along with convenience and safety. This new demand by consumers has opened a new avenue of food preservation known as minimal processing. The products prepared by this processing method are known as fresh cut or pre-pared products. Minimally processed products are also known as lightly processed, partially processed, fresh processed, fresh cut, and pre prepared. It can be defined in many ways for example as "least possible treatment to achieve a purpose". A more specific definition is as the method that "preserve foods but also retain to a greater extent their nutritional quality and sensory characteristics by reducing the reliance on heat as the main preservative action. In a broader way it can also be defined as the processed foods have been slightly altered for the main purpose of preservation but which does not substantially change the nutritional content of the food. Generally minimal processing involves cleaning, washing, trimming, coring, slicing, shredding before packaging and storage at specific temperature. Some of the examples of minimally processed fruits and vegetables include sliced mango cheeks/melons/papaya/apple, pieces of pomelo segments, peeled and cored pineapple, chilled peach, pomegranate arils dressing, shredded lettuce, shelled peas, cauliflower florets, peeled sliced potatoes, diced onion etc. Minimally processed products are important to food service industry such as eateries and catering companies as they offer many advantages over traditional products, with respect to convenience, expense, labor, and hygiene. Even if it is very much liked by people, the production of minimal processed products is limited due to rapid deterioration and short shelf life. Whereas most food processing methods stabilize the products and prolong their shelf-life, minimal processing of fruits and vegetables increases their perishability.

Introduction

Fruits and vegetables are essential constituents of daily diet and are highly demanded in the recent years from most of the population. They are reservoir of vitamins, essential minerals, antioxidants, bio-flavonoids, dietary fibres and f lavour compounds which fall easily victim to abiotic and biotic adversities. Fruits and vegetables are highly perishable and during the post- harvest, there are considerable losses due to microbes, insects, respiration and transpiration.

The important quality factors of fresh produce contributing to the marketability are texture, colour, appearance, flavour, nutritional value and microbial safety. These quality factors are measured by plant variety, ripening stage, maturity stage pre-harvest and post-harvest conditions. The Post-harvest losses of fruits and vegetables are a serious problem because it rapidly deteriorates them during handling, transport and storage. Edible coating over fruits and vegetables are used to improve their quality and shelf life.

India is bestowed with huge production of fruits, vegetables, cereals, millets, sugarcane along with meat production, milk production, fish production and poultry. Despite such a huge production in India, owing to perishable nature of these produce around 25-30 percent of the produce is being lost as post harvest loss. The one important reason for this may be the production of the crops are season specific and during the peak season the production is more while demand for consumption is less. It may be possible to cut down these losses to great extent, if these produces may be transported from the produces states to those who are not producing due to agro-climatic reasons. So for making transportation of the perishable a successful venture in decreasing post harvest loss, there must be proper cool chain management facilities both at producing site as well as marketing place. The aim of the cool chain management must be to keep the produce in saleable condition during entire storage periods. Some products are stored for short period whereas fresh fruits, vegetables require cold storage. Foods before keeping into the storage room need some pre-storage treatments for better results.

Introduction

Many post-harvest treatments are applied to horticultural crops, either to maintain the quality (taste, colour, flavour, texture) or improve the visual appeal. Most important of these treatments are temperature management including the cold chain where the temperature of the crop is reduced rapidly and stabilize temperature after harvesting. Exposing the crop to high or low temperature and application of chemicals after harvest helps in managing/ prevent pest and diseases and sprouting occurrence respectively.

Harvested produce must be handled with care at every stage to avoid the mechanical damage and subsequent fungal/bacterial infection. Adopting appropriate post-harvest handling operation will minimize the all ill effects of post-harvest (Fig. 1).

Food Safety

The term “safe food” has different standards to different consumers rather than just being the food handled and prepared through proper cleaning, washing and cooking. Safe food means food prepared on clean and sanitized surfaces with equipment, utensils and dishes that also are cleaned and sanitized. Nowadays consumers are extra conscious about the safety and quality of food and for that reason food safety issues have changed, so have society’s methods for making food as safe as possible. Accordingly, “food safety” means assurance that food is acceptable for human consumption according to its intended use (FSSAI 2017).

Introduction

The food processing industry ranks fifth in size in the country and employs 16 lakh workers which is 19% of the country’s industrial labour. It accounts for 14% of the total industrial output with 18% of industrial GDP and 6.3% of countries GDP. So, food processing plays a vital role in India’s prosperity. The Food Processing Industry sector in India is one of the largest sector in terms of production, consumption, export and growth prospects. Food processing industry broadly comprises primary processing category and the other categories embracing the secondary, tertiary and further stages of downstream processing. Primary food processing is a major industry with lakhs of rice-mills/ hullers, flour mills, pulse mills and oil-seed mills. There are several thousands of bakeries, traditional food units and fruit/vegetable/spice processing units in the unorganized sector. In the organized sector, there are over 820 flour mills, 418 fish processing units, 6600 fruit/vegetable processing units and 171 meat processing units. Indian processing industries has installed capacity of 21 lakh tones; however these industries actually processed 9.8 lakh tones of the produce. So the total capacity utilization of industries is <30%. There are 70% units in home/cottage/ small scale sector and 30% units in large scale sector with capacity of 250 tonnes per annum and 30 tonnes/hr, respectively. Large scale contributes 70% of the production. The principal crops and commodities which constitute the primary base for the food processing industry and considered important sub-sectors in food processing industries are illustrated in Fig. 1.

Distillation, leaching, and extraction

A. Distillation

Distillation is a widely used separation process in various industries, including chemical, pharmaceutical and food processing. It is particularly important in the production of alcoholic beverages, essential oils, and purified water. Distillation works on the principle of exploiting differences in the volatility of components in a liquid mixture to separate them based on their boiling points.

Principles of Distillation

Distillation is a time-tested and versatile separation technique employed across a myriad of industries for separating components of liquid mixtures. Its effectiveness lies in its ability to leverage differences in boiling points among the various constituents of a mixture.

A. Non-thermal Processing

Non-thermal processing encompasses a diverse range of food preservation and treatment techniques that do not rely on heat as the primary means of achieving microbial inactivation or quality preservation. Unlike conventional thermal methods such as pasteurization and sterilization, which involve exposing food to elevated temperatures for a specified duration, non-thermal processing methods operate at or near ambient temperatures. These innovative technologies offer several advantages, including the preservation of sensory attributes, retention of nutritional quality, and minimization of detrimental effects on food texture and f lavour (fig 1).

A. Novel Dehydration Technologies

Dehydration, the process of removing moisture from food products, is crucial for enhancing shelf life, reducing weight and volume for transportation, and preserving nutritional value. Traditional dehydration methods, such as sun drying, air drying, and freeze drying, have been widely used for centuries. However, advancements in food technology have led to the development of novel dehydration technologies that offer improved efficiency, quality retention, and sustainability.1. Vacuum Microwave Dehydration

Vacuum microwave dehydration is a cutting-edge dehydration technique that combines the advantages of removing moisture from food products while preserving their color, flavor, texture, and nutritional content (fig 1).

Food Plant Hygiene

A. I.mportance of Food Plant Hygiene:

1. Ensures the Safety and Quality of Food Products: Proper hygiene practices within food processing facilities play a critical role in safeguarding the safety and quality of food products. By adhering to stringent hygiene protocols, including thorough cleaning, sanitation, and preventive measures, facilities can effectively prevent the contamination of food products by harmful microorganisms, chemicals, or physical hazards. This helps minimize the risk of foodborne illnesses and ensures that consumers receive safe and wholesome food products. Additionally, maintaining cleanliness and hygiene in food proce

A. Mixing and Homogenization

1. I.ntroduction to Mixing and Homogenization

In the food industry, mixing and homogenization are fundamental procedures that are essential to the production of a wide range of food items. To produce the desired qualities and final result with uniformity and consistency, various ingredients are blended. Ensuring product quality, stability, and customer happiness are contingent upon these processes.

Importance of Mixing and Homogenization

Mixing and homogenization are paramount for several reason

Introduction

Food fraud is not new it can be traced back to ancient Rome and Athens, where regulations prohibiting the adulteration of beverages with flavours and colours were in place. It exists since the food trade has been started. Food fraud affects all food supply chains, thus the entire food sector. Due to globalisation and the increasing complexity of supply lines, food supply chains are becoming more vulnerable to food fraud (Robson et al., 2021a). A fraud is “any act or omission relating to the use or presentation of false, incorrect, or incomplete statements or documents, or non disclosure of information in violation of a specific obligation, and any other illegal activity affecting the financial interests” (EU No. 2017/1371).

Introduction

It is an eminent actuality that the diets of end users are being advanced globally; however, the patterns of food procurement and food safety protocols diverge across countries. The fundamental rationale of the trend is that the consumer awareness with regard to food safety, quality and variety has been proliferated greatly. Looking back to the history of food industry, it is unquestionable that the past has a full frame of misfortune, indignity and many disastrous incidents. Moreover, the entire muddle was not always related with microorganisms; numerous of them were associated with environmental problems, technological advancements or certain alterations in production protocols and management.

In recent years dietary supplements have gained attractiveness within fitness and wellness circles. The other commonly used terms areNutraceuticals, dietary supplements or wellness-focussed foods. Being highly nutritious they are associated with a number of potential therapeutic effects. Nutrient-rich ingredients like fruits, vegetables, nuts, seeds, and grains are often considered dietary supplements as well. Oats fibre called, beta glucan, which has been shown to reduce inflammation, enhance immune function, and perk up heart health.

1. Conventional and Non-conventional Dietary Supplements

Nutrient-rich foods like fruits, vegetables, and legumes are often considered dietary supplements. Meanwhile, modified foods have been fortified with micro and macro nutrients to boost health benefits of foods.

1. Introduction

Livestock meat and fish are rich sources of high-quality protein and other valuable nutrients such as polyunsaturated fatty acids, vitamins, and minerals and are an essential part of our healthy diet (Vladau et al., 2008; Mahmud et al., 2018; Mohanti et al., 2019; Mei et al., 2019). Food fraud and adulteration is an age-old distortive practice. The rising incidence of food contaminants and adulterants-induced health issues has challenged consumers to identify and consume safe livestock meat and fish products. Its significance has increased in recent years due to global trade, awareness among consumers, and sociopolitical issues.

1. Introduction

Food is an essential requirement for survival. We work hard to earn money so that we can feed ourselves. However, at the end of the day, many of us are unsure about the quality of food we consume. The allure of money, along with a general disregard for humanity, has resulted in the addition of adulterants to food ranging from simple stones in rice to the more harmful chemicals in food of daily use. Surprisingly, food fraud is not a modern issue. There are several references to fraudulent food behaviour as early as the Romans, but it is usually considered to be the Victorian who places food fraud on the map.

Introduction

Milk is regarded as the “ideal food” as it contains nutrients necessary for both newborns and adults (Azad & Ahmed, 2016). It is high in protein, fat, carbohydrates, vitamins, and minerals. Unfortunately, milk is easily adulterated all over the world for several reasons, including a gap between supply and demand, the inherent nature of milk which can imbibe many adulterants that are difficult to identify, the low purchasing power of consumers, an insufficient share of the organized sector in the dairy business, and, most importantly, a lack of efficient and rapid methods for detecting adulterants (Ellis et al., 2012; Moore et al., 2012).

Introduction

Spices are botanical products of tropical and subtropical plants, mainly fruits, seeds, f lowers, roots, stems, leaves, bark, or whole plant (Golob & Nations, 1999). The dominant spices of trade including cardamom, cinnamon, cloves, ginger and pepper (A. Osman et al., 2019)including aroma, flavor, and color, to foods and beverages in an effort to enhance their palatability. Herbs and spices exhibit a plethora of medicinal properties including antimicrobial and antioxidant properties. Spices serve as natural preservatives to delay food spoilage and extend shelf life.

Introduction

Cocoa beans are extracted from the pod of a tree crop Theobroma cacao. It is mainly cultivated in tropical and subtropical countries. In terms of world production, Ivory Coast and Ghana contribute about 65 percent of world production. Cocoa beans are the main ingredient in chocolate. (Teye, E et al 2014). One of the earliest examples of chocolate consumption comes from the Mayans. The Maya drink was prepared with cocoa and water and often included cinnamon and black pepper. It was also known as the “Food of the Gods” and offered to Emperor Moctezuma II by the Aztecs, (Verna, R. 2013). Christopher Columbus was the first European to encounter cocoa in 1502.

Introduction

Coffee is a beverage made from the roasted and ground seeds of the African tropical evergreen coffee plant. Coffee is one of the world’s three most popular beverages (together with water and tea), as well as one of the most profitable international commodities, and it is the world’s second most marketed product after petroleum (Myhrvold, 2021).Coffee is a popular beverage that is enjoyed around the world for its taste, health benefits, and ability to enhance physical performance (Simkin, 2008).

Tea as a Beverage

Tea is the most popular beverage consumed in the world after water. All types of teas including black. green, oolong, white and pu-erh tea are mainly made from the buds and young leaves of tea plants, Camellia sinensis (L.) O. Kuntze belongs to the family Theaceae [1]. Depending on the different processing techniques of tea leaves, tea types are categorized as “Green Tea” (unfermented), “Black Tea” (fully fermented), “Oolong Tea” (partially fermented), “Pu-ErhTea” (post fermented) and white tea (unfermented) [2]. The manufacturing process for these different types of teas mainly differ in the degree of enzymatic oxidation (fermentation) process [1].

Introduction

Fruits and vegetables are an important part of healthy human diet. Consumption of vegetables is widely promoted by Governmental health agencies since it provide consumers essential nutrients such as vitamins, minerals, dietary fiber and phytochemical compounds, at a relatively low calorie density. Furthermore, the consumption of vegetables has been strongly associated with reduced chronic and degenerative diseases such as cancer and heart related ailments. The United States Department of Agriculture recommends five to nine servings of fruits and vegetables daily (Berger et al 2010). In recent years, fresh-cut produce has become more popular due to their convenience, freshness, taste and assumed “Healthiness”.

Introduction

All the worldwide cuisines generally rely on plant-based edible oils as the main cooking ingredient due to their unique chemical composition, further presence of unsaturated fatty acids in plant-based oils makes it a healthy complement in the diet. Lipids are known to provide almost double calories than carbohydrates. For ages, vegetable oils have contributed maximally to our nutrition and economics, but their authenticity is still a considerable issue (Firestone and Reina, 1996) as for more profitability fraudulent blends lower grade oils to high-grade expensive oils.

Introduction

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

Introduction

The act of substituting food or drink with low grade quality ingredients thereby the f inal product will fail to the meet the regulation or standards and in most cases even unfit for human consumption (Augustin et al., 2009). With demand for profit based manufacturing market, there will be increase in points of adulteration with cheaper alternatives or inferior grade ingredients in the production of food or drink (Banti, 2020)]. Adulteration is highly prevails in developing countries such as India, where about 70% of milk supply is adulterated on day to day basis (Bittar et al., 2017). It is every nation and each individual’s responsibility to provide safe and nutritious food to the consumers.

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).

1. Introduction

The materials widely used for food contact applications include paper and coated-paper products, cellulose products, cellophane, metals, ceramics, glass, rubber, plastics, and miscellaneous materials such as wood, fabric, etc. Most of these materials have been in vogue for several years. Among them plastics are widely used in the food industry as they offer many advantages due to their high cost-to-benefit ratio. However, food safety issues in terms of migration of additives is a cause of concern. Plastics contain a number of additives either deliberately added during their manufacture or inevitable due to technical requirement.

Introduction

Since ancient times, addition of chemicals to food and food products has been done in order to to accomplish specific functions. Spices, smoke, vinegar, and alcohol were utilised to preserve foods more than 10,000 years ago. Usage of additives in food increased dramatically in the early 1900s, in tandem with advances in food chemistry and preservation. New, tasty, convenient, and healthy meals continue to be in high demand. As a result, by the early 1960s, over 2500 different types of additives were identified and utilized by developing countries in their diets. Basic foods are additive free, but as we increase the level of processing for conversion into an array of products, variety of additives are incorporated to increase the shelf life; to retain the nutritional value as well as to achieve higher standard of sensorial characteristics.

Introduction

Organic substances consumed for nutritional purposes can be called as “food”. Food contains biomolecules, like, protein, lipid and carbohydrate, inorganic minerals as salts, and organic substances, such as, vitamins, emulsifiers, acids, antioxidants, pigments, polyphenols and flavour-producing compounds. They can be of plant or animal origin. Depending on the durability in terms of suitability of consumption, foods can be perishable, semi-perishable and non-perishable. Food spoilage occurs due to chemical, microbial, or physical actions. eventually affecting its nutritional values, colour, edibility and texture (M. Rahman, 2007).

Introduction

Terrorism has been experienced throughout human history by unlawful violence against innocent population to achieve financial or religious or political objective (Rakesh Gupta, 1998). Terrorism has no geographic or geopolitical boundaries and is adapting to changes in the socio-political environment. Progress in the area of science and technology have the potential to be used for both beneficial and harmful purposes leading to dual-use dilemma. Of late, more scenarios are witnessed where the applications of well-intentioned scientific research are being used for vicious purposes. Earlier, terrorism has been associated primarily with physical acts of violence and crime. Eventually the global militant and terrorism strategies evolved to chemical, nuclear, radioactive explosive agents to biological terrorism. Recently, cyber terrorism controlled by computers has seen a new form of criminal activities (www.hannover-re. com).

Introduction

In the ancient era, adulteration was practiced as economical fraud like the addition of water to milk and stone to grains and pulses but nowadays it has become a global concern due to adverse health effects of adulterants on a human being. Words like substitution and admixture can help define adulteration. In general, adulteration is defined as either removal of valuable constituents from food or intentionally/ unintentionally addition of substandard quality material to degrade food quality. Food adulteration not only negatively affects the quality of food products but also results in numerous adverse health effects along with significant economic problems (Cheng et al., 2015).

Introduction

Agriculture as a primary sector in India is mostly production oriented. Global agriculture is experiencing significant changes in terms of technological and digital revolution, rapid urbanization, faster growth in middle income groups, changing food habits, market oscillations, and above all, climate change. During the last 50 years, India has recorded 4 to 10-fold increase in agriculture and food production(food grains-290 MT, horticultural produce -315 MT, milk production nearly 180 MT, and fish production approaching 12 MT), rendering the country as the second largest agrarian economy in the world (Singh, 2019). Despite the excellent progress, the country is home to over one third of the world’s small and marginal farm holders, with scattered land holding. Eighty f ive percent of the farmers are small and marginal. On the other hand, world’s population is growing and to meet the growing food demand there is a need to increase agricultural output by at least 60 percent globally, and 100 percent in developing countries (FAO, 2014a)

Introduction

Protected cultivation or greenhouse cultivation is the most common technique to grow vegetable crops qualitatively and quantitatively, and has spread widely all over the world in recent decades. Greenhouse agriculture is also known as environmentally controlled planting. The technology involves the cultivation of vegetable crops in a regulated environment in which factors such as tem perature, soil, light, humidity, irrigation, fertilizers, etc. are controlled in order to achieve optimum production and ensure a steady supply even in off-season conditions. In India, the total area under protected cultivation or green house is currently approximately 25 000 ha whereas the protected vegetable area is approximately 2000 ha which has been challenged by land ownership limita tions, decreasing crop production, rapid urbanization, ever increasing popu lation and decreasing biodiversity. Food demand, especially vegetables, has increased growing of different crop varieties as protected crops, or greenhouse has opened up a new dimension to extra production within a limited crop area.

Introduction

Pulses are a part of healthy and balanced diet and have special importance for vegetarians in fulfilling their daily requirements for body proteins. Low productivity in pulses is due to nutritional deficiency in soil and imbalanced external fertilization (Awomi et al., 2012). Nitrogen (N) is more important as it is essential component of amino acids and proteins. It fixes atmospheric N of about 35 kg ha-1 by the help of symbiotic Rhizobium, a soil bacterium (Movalia et al., 2020). Globally, Rhizobium and Bradyrhizobium can fix approximately 175 x 106tons of N every year which is higher than the annual total chemical N fertilizer production of 30 x 106tons (Hidayatullah et al., 2016). The element molybdenum (Mo) is crucial for functions of nitrogenase and nitrate reductase, the two important enzymes that act as catalyst for N fixation. These two enzymes work properly in presence of Mo as nitrogenase contains Fe-Mo and Fe-Fd proteins, and N fixation cannot take place without these proteins (Hidayatullah et al., 2016).

Introduction

The impacts on the various facets of life – agriculture and food processing – need no longer be addressed in a way that is well established. Nearly every aspect of the planet has shown its effect at different rates, both positively and negatively. As a subtropical region, India is also witnessing different variations in weather and an increase in temperature that affect farming. Only in recent years has the potential to reduce transpiration from plants by the use of chemicals been further explored. These antitranspirants can either control perspiration by filming the leaf surface or by manipulating the aperture of the stomach. Antitranspirants are the materials or chemicals that reduce the water loss from plant leaves by reducing stomata size and number. During transpiration, almost 99 per cent of the water consumed by the plant is lost.

Introduction

The state of Odisha highly depends on rainfall for the agricultural production. But rainfall distribution is very erratic and uneven which result heavy floods and droughts in different pockets of the state. Thus, the agricultural production is very unstable. It is present in the eastern region of India which is again located in the subtropical belt of medium pressure. Here hot and dry summer welcomes wet humid monsoon which last about few months. Charming autumn and with short and mild winter entertain the human life. But here climate is characterized by high temperature and medium rainfall. Topography however modifies the local climate greatly. The four meteorological seasons prevailing in the state which are: winter (January to February), pre-monsoon season (March to May), south-west monsoon season (June to September) and north east monsoon season (October-December).

Introduction

Seasonal or annual fluctuation in weather patterns is termed as climate variability. However, climate change is a change in the mean state of weather statistic over three decades of time period. Climate change is exacerbating the challenges faced by the agriculture as well as horticulture sector. For last 10 years, Asia is facing the serious threats from climate change and variability such as tsunami, f loods and droughts. Extreme events are expected to have large negative impacts on crop productivity. The rise in temperature and reduction in rainfall under semi-arid environments are likely to reduce production of fruits, vegetables and flowers in the coming 20 years. The production and quality of fresh fruit and vegetable crops can be directly and indirectly affected by exposure to high temperatures and elevated levels of carbon dioxide and ozone. The rise in atmospheric CO2 levels due to global climate change and horticultural practices has both direct and indirect effects on secondary metabolite synthesis in plants.

Introduction Soil ecosystems are the foundation of human life support systems. Soil erosion, loss of soil organic matter and nutrient depletion are among the leading contributors to impaired soil health, reduced crop yields and poverty. Realizing the significant role that soils play in food and environmental security and in abating climate change, the United Nations declared 2015 as the Year of Soils. The International Union of Soil Sciences (IUSS), in 2002, proposed to observe the 5th December as “World Soil Day” [WSD] to create awareness among all stakeholders on the importance of soil as a critical component of the natural system and as a vital contributor to human commonwealth through its contribution to food, water and energy security and as a mitigation of biodiversity loss and climate change. These occasions remind all stakeholders associated with agriculture all over the world to put in all efforts to promote scientific management of soil resources for soil protection, conservation and sustainable productivity.

Agricultural production system has gone a long way in supporting the world’s food requirement. The projected estimates revealed that to meet the global population of about 11.3 billion in 2050, the global demand for cereal will increase by 60% (Rosegrant and Cline, 2003, Bengtsson et al., 2006). Agriculture is considered as the chief agent of environmental transformation. The unrestrained attitude of Homo sapiens towards the use of natural resource catalyzing the causes leading to global warming, has increased the challenges manifold to provide food security in a sustainable manner. Increased concentration of CO2 and other green house gases have resulted in an increase of 0.760 C in surface temperature globally since nineteenth century and the mean global surface temperature is predicted to increase by an additional 1.30C to 1.80C by 2050( IPCC, 2007). Sinha and Swaminathan (1991) reported that an increase of 20C in temperature could decrease the rice yield by about 0.75 t/ha in the high yield areas and a 0.5oC increase in winter temperature would reduce wheat yield 0.45 t/ha.

Introduction

Agriculture and allied sectors have always been the backbone of the Indian economy and despite concerted industrialization in the last six decades agriculture still occupies a place of pride. The significance of agriculture in the national economy arises from the role it plays in India’s national income, employment generation and export earnings; this can be seen from the provisional estimate on contribution of various sectors to the GDP in the f irst quarter of 2020-21, particularly during COVID-19 pandemic, positive percentage change (+3.4) over previous year when all other sectors have negative change.

Introduction

Women entrepreneurship in economic development of any nation has been recognised for its significant contribution. The women folk can be considered as backbone of any nation. Now time has come for women empowerment. In rural Odisha, women not only play an important role for agricultural development but also plays significant role in allied agricultural sector such as dairy, fishery, poultry, mushroom production etc. In Indian condition dairy has been considered as “Rural Banking” as it is practiced mostly by majority of the marginal, small and landless farm families for their sustenance and livelihood. The role of rural women for animal husbandry is of paramount importance. In this sector they are managers as well as decision makers. Women do more than 80% dairy operation like cleaning, feeding, milking, marketing of milk and milk products. The state and central government initiate several scheme, programmes and projects for empowerment of women through various micro enterprises including dairy. Against this background a study was undertaken to identify the constraint faced by women entrepreneur in dairy sector in Khordha district of Odisha.

Introduction

Agriculture is an important sector of Indian economy and it contributes about 17.4% to the country’s Gross Value Added (GVA) for the year 2016-17 provides employment to over 54.6 % of the population. There has been a continuous decline in the share of agriculture and allied sector in GVA from 18.6% in 2013 14 to 17.4% in 2016-17. Falling share of agriculture and allied sector in GVA is an expected outcome in a fast growing and structurally changing economy. However since 54.6% of the population is still dependent on agriculture and engaged in improving the agricultural production and overall income. The agricultural production system required timely and adequate agriculture credit to fulfill farmers need. Agricultural Finance ensures provision of multiple types of services dedicated to support both on- and off-farm agricultural activities and businesses including input provision, production, and distribution, wholesale, processing and marketing.

Introduction

Cotton is a fiber crop of Malvaceous family. There are four cultivated species of cotton viz. Gossypium arboreum, G. herbaceum, G. hirsutum and G. barbadense out of which G. hirsutum is the predominant species contributing about 90% to the global production. In India all the above four cultivated species are grown on commercial scale as a kharif crop. India is the largest producer as well as consumer of cotton in the world. The major cotton growing states of India are Maharashtra, Punjab, Haryana, Rajasthan, Uttar Pradesh, Madhya Pradesh, Gujarat and parts of Andhra Pradesh & Karnataka. In Odisha cotton cultivation is an up-coming activity. Many of the western belt farmers, mainly from Rayagada, Bolangir, Kalahandi, Nabarangpur, and Nuapara districts have been taking cultivation of this cash crop. According to the report of Odisha economic survey, 2018-19 a total of 1.45 lakh ha area was cultivated in 2017-18 producing 3.65lakh bales of cotton. In Rayagada district cotton is cultivated in 9 blocks out of 11 blocks comprising an area of 35170 ha. For the year 2018-19 yield was 12.37 q/ha with production of 25.6 MT of cotton according to the data given by District agriculture office, Rayagada.

Mushrooms is known for its delicious and nutritious food with highly digestible lysine rich protein, vitamins and minerals, Mushroom serves as a low calorie food which lacks fats and are low in carbohydrate. They are rich in folic acid, phosphorus, potassium, calcium, copper and iron and vitamin-B complex. In place of starch, mushroom contains sorbitol and linolenic acid. They are excellent sources of thiamine, riboflavin, niacin, pantothenic acid, biotin, folic acid and vitamin B-12. Further, mushrooms are also reported to have high medicinal attributes. A large number of mushrooms contain biological active polysaccharide protein complex having anti-tumor, immune-modulating and antioxidant properties.

Nutritional and food security is the problem of the day globally due to increase in population by many folds. It is therefore one of the important challenges of public and private sector to provide nutrient rich food with appropriate security for development of human kingdom. Advances in food production have largely kept pace with demand. More than 830 billion people are still hungry and more than 2 billion people are lack of sufficient nutrients. Paradoxically, more than 2 billion people are overweight or obese. Malnutrition means bad nutrition not only under nutrition. For some time the food debate centered on the food security drawing on wildly accepted thinking from 1966 i.e. world food summit which defined food security as a state or condition “when all people at all times are physical, economic and social access to sufficient, safe and nutritious food to meet the dietary needs and food preference for active and healthy life”. Thus nutrients are necessary component to food security.

The current world population of 7.6 billion is expected to reach 8.6 billion in 2030, 9.8 billion in 2050 and 11.2 billion in 2100, according to United Nations (UN). With roughly 83 million people being added to the world’s population every year, the upward trend in population size is expected to continue, even assuming that fertility levels will continue to decline (UN, 2017). This means there will be an extra billion people to feed within the next decade. Continuing population and consumption growth will mean that the global demand for food will increase for at least another 50 years .The future’s food systems need to be resource efficient and sustainable. It is quite clear that the only way to grow more food is to increase the yield while saving the environment from further degradation. It is not just food, it is the four F’s – Food, Feed, Fiber and Fuel. Digitization has increased in importance for the agricultural sector and is described through concepts like Smart Farming (SF), Precision Farming (PF) and Precision Agriculture (PA).The only way to get higher yield from limited resources is by changing agriculture into what we call Precision Agriculture, Climate Smart Agriculture, or as I prefer to call it Water-Smart Agriculture”

Introduction

India is one among the progressive countries in the world in maintaining food and nutrition database efficiently. The country has been in the fore front in signing the resolution on ‘Transforming the World: the agenda for Sustainable Development-2030’. India outstood among the developing countries in food self-sufficiency since seventies with low household hunger rates and low infant mortality rate. In the meanwhile, the country faced double burden of food and nutrition with inadequate dietary intake and under nutrition in one hand and overweight due to low physical activities on the other hand. Rapid increase in population with diminishing food production led to food insufficiency and malnutrition whereas, rapid economic growth and increasing mechanization led to the increasing prevalence of overweight and obesity. Both the under- and over nutrition are associated with health hazards, hence, use of normal body mass index (BMI)would be considered as an indicator for food security (FAO, 2013)