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2.1 Introduction

The journey through the research work and the resultant publication of research articles, review notes and books by innumerable authors in the field of Information Technology, and Communication, Library Sciences, Social Media and Popular Culture has been the basis for this chapter: The Review of Literature. The following is a report of how and what lead to arrive at the objectives, hypotheses and methods of researching this field and the concerns of the researchers and the authors. Reading innumerable articles, research papers, and books helped in writing this literature review strengthened the knowledge about the topic of this study. It has been of immense use to learn essential concepts, research methods, and experimental techniques used in this field. Another benefit of the extensive reading of relevant literature has been the knowledge and understanding of how to present the insights, research findings, and claims discussed and explained scientifically and systematically. Through this reading exercise, the topic of the research and its objectives were finalized. 

Hausman (1920a) worked on the microscopic structure of hair from the commercial fur. The hair samples of 27 different species of animals were used for the study. He described in detail the structural features of guard hair. He classified medulla of hair into 4 different types as discontinuous, continuous, fragmental and interrupted on the basis of composition of medullar cells. He also classified the cuticular scale pattern into two types as imbricate interrupted and imbricate coronal. He mentioned in detail the methods for the preparation of slides for the study of microscopic structures of hair. He also studied the cortex and pigment granules.

Introduction

This chapter reviews literature related to the current study on Quality of Work Life (QWL). Scrutiny of the available literature is of great value in gaining insight into the research problem. It is beneficial for strengthening the research problem. As there are fewer studies on QWL in the university libraries in Kerala, the works reported in other places were also reviewed. Hence, the available studies related to the topic are exhaustively reviewed. The review covers studies on the subject made at the regional, national, and international levels.

Research being a continuous process for a scientific study, previous study provides basis for the research. The review of literature is necessary for developing conceptual frame work and suitable design for the study. It assists the researcher to keep his work going in right direction. The available literature related to the present study has been reviewed under the following heading:

2.1 Differential role accomplished by women dairy farmers from different social strata

Toppo et al. (2004) examined the participation of women farmers in dairy occupation in Anand district of Gujarat and their result revealed that 18.34 percent of the farm women were mostly engaged in activities related to artificial insemination, majority of the respondent (68.34%) participated in cleaning of the shed, while 25.00 percent of the farm women practised manure preparation and 95.00 percent of the respondent were not involved in preparation of gobar gas mixture.

Badole (2006) reported that majority of the responded had low socio-economic status.

A Literature Review is a systematic and comprehensive analysis of books, articles and research papers to a specific topic providing a base of knowledge on the topic. Literature reviews are designed to identify and critique the existing literature on a topic to justify your research by exposing gaps in current research. This investigation should provide a description, summary, and critical evaluation of works related to the research problem and should also add to the overall knowledge of the topic as well as demonstrating how your research will fit within a larger field of study. A literature review should offer critical analysis of the current research on a topic and that analysis should direct your research objective. This should not be confused with a book review or an annotated bibliography both research tools but very different in purpose and scope. Key to a good Literature Review is to document your process.

The systematic identification, evaluation, and integration of the body of published work produced by researchers, scholars, and practitioners is achieved through a rigorous and repeatable method called the review of the literature. It acts as a comprehensive resource, incorporating the most recent information, important discoveries, and theoretical breakthroughs linked to a certain field. The literature review is a useful compilation of important discoveries as well as methodological and theoretical contributions within a certain topic that is frequently seen in academic and scholarly journals.

In all academic areas, the review of literature is a crucial component of research. Its main goal is to assess, evaluate, and make links between our findings and previous research on a particular subject of interest. In addition, the literature review acts as a point of reference and offers helpful insights in the following ways:

i. Approaches

ii. Methods

iii. Variables

The publication of “Flora of British India” by Hooker (1872-1897) was followed by a series of regional floras by Cooke (1901-08) for Bombay presidency; Prawn (1903) for Bengal: Duthie (completed by Parker & Turrill, 1905-29) for upper gangetic plains and adjacent Siwalik and of sub Himalayan tracts; Kanjilal (1966) for the forest flora of Uttar Pradesh; Gamble (completed by Fisher, 1915-1936) for Presidency of Madras; Haines (1921-1925) for Bihar and Orissa: and Kanji et al (1934-1940) for Assam. Duthie’s work was completed by Raizada and associates (Raizada, 1954, Raizada et al. 1961; 1983; Raizada & Jain, 1964, 1966). Later, Raizada (1976) brought together all additions made to Duthie Flora. However, the trends of additions has persisted afterwards and is hoped to continue onwards as well. Revision of old floras has become all the more important because the nomenclature of a large number of species has changed in accordance with International Code of Botanical Nomenclature (1956, 1961, 1966, 1972, 1978 & 1983).

This chapter reviews the research work done in the fields related to the objectives of the study. In any scientific investigation or research a comprehensive review of relevant literature is very essential. Its main function apart from determining the work done before concerning the problem area i.e. area of investigation, it provides an insight into the methods and procedures and create a basis for interpretation of findings. As direct references on all the item are not in abundance, certain specific references along with some indirect references have been incorporated this chapter for the purpose of meaningful use.
2.1. Ecosystem Services and Conservation Agriculture
Acharya, S. K. and Chatterjee, R. (2019) found that conservation agriculture may help in re-building agro-ecology by maintaining carbon sequestration, maintaining soil health, checking soil erosion and ground water depletion, energy balance, mitigating climate change related problems through maintaining ecosystem services.
Ayyam, V., Palanivel, S., and Chandrakasan, S. (2019) stated that CA embraces higher rates of carbon sequestration, organic matter accumulation, soil erosion reduction, and its associated improvement in soil biological properties. Additionally, there is reduction in greenhouse gas emission as a result of CA. Adoption of CA-based farming practices particularly in areas facing notable land degradation and depleting natural resources delineates a win-win scenario due to improved crop yield and trends of increasing soil fertility and scope for climate change adaptation to recuperate degraded soils and improve ecosystem services.

A literature review is an organized, in-depth examination of books, journals, and research papers related to a particular subject that serves as a foundation of knowledge. By pointing out gaps in the present body of knowledge, literature reviews aim to identify and evaluate the body of existing research on a certain subject in order to support your own study. This inquiry needs to include an explanation, synopsis, and critical assessment of previous studies pertaining to the research challenge. It should also contribute to the body of knowledge on the subject and show how your findings will fit into a broader body of knowledge. Your research goal should be guided by the critical examination of the most recent research on the subject provided by a literature review. This is not the same as a book review or an annotated bibliography, which are research instruments with quite distinct goals and purposes. Writing a process document is essential to a successful literature review.
Purpose
A literature review’s objectives are to:
• Offer a solid foundation of information on the subject.
• Locate areas of earlier study to avoid repetition and to acknowledge the contributions of other experts.
• Determine the need for further research (include evidence to support your findings).
• Determine how one piece relates to the other and to the theme in the context of both.
• Set your own research in the framework of previously published works that argue for the necessity for further research.

The review of literature consists of conceptual literature concerning the concepts and theories and empirical literature consisting of studies made earlier which are relevant to one proposal.
The main purpose of this chapter is to present some of the findings/ results of the past research studies related to the present investigation. A few relevant research studies which have been conducted in India and abroad in the field different altitude areas, their livelihood are presented in the following headings:
1.1. Works based on the livelihood of different altitude places of India and abroad
1.2. Works based on the livelihood of different altitude places specially North East India.
1.3. Other general concepts related with the present research
1.1 Works Based on The Livelihood of Different Altitude Places of India and Abroad
FAO, Rome (2011) stated a major factor limiting the food security of household in hill areas is shortage of land for cultivation which are simply too small to support the farmers with current food production practices. Closing the yield gap will produce food production and security.
Alkan S. and Toksoy D. (2008) indicates that the forest villages which are at the high altitude and on the field that are not suitable for agriculture. This complicates living in them and increases their dependence to the forest resources. While determining the forest villages, the distance from the forest, and the socio-economic criterions are considered.
Tejada E. and Nielsen M.O. (2008) stated that the harsh eco-climatic and edaphological conditions of the High Altitude of Bolivia adversely impact most of the agricultural and livestock production indices. However, livestock activity, in addition to dealing with the subsistence of rural families, offers more security than the agricultural activity in those eco-systems, since crops are more vulnerable than animals to abrupt climatic changes.

The purpose of the study is to gather and use pertinent data to further the primary goalsof the investigation. Any review of literature revolves around the work’s origin, author, chronology, and significant content that have an obvious impact on the current study. It begins with a history for gaining into posterity through current status.

A. Health, Hygiene and Nutrition of Rural Women
Imtiaz et al., 2014, conducted a descriptive cross- sectional study from March to June 2012 to evaluate the personal hygiene practices among rural women in a particular Bangladeshi community. In order to evaluate two fundamental aspects of personal hygiene, hand washing and access to clean drinking water, 150 women of varying ages were chosen from the villages of Garibpur and Tangurpur in Jessore district. A convenient non-probability sampling technique was used and data was gathered by face- to- face interview using semi-structured questionnaire. Among the respondents 87.33% had some form of schooling, 12.67% were illiterate. The majority of the participants almost 87.34% had washed their hands before eating, 13.74% before eating break fastand none of the respondents washed their hands before consuming any dry food. Themajority of the respondents almost 95.34% washed their hands after urinating; among them 82% used soaps, 16% used ash and 2% used earth. To lead a healthy- life it is crucial to practise good personal cleanliness and to utilise safe drinking water. They should be regularly inspired to do so through health education activities. Rao et al., 2012, carried out a study on Indian women’s diet and nutritional status. Women’s status in society has an impact on their health. Female infanticide, a higher death rate, a lower sex ratio, low literacy rates and a lower level of employment for women in the workforce are just a few examples of how the demographic consequences of women have manifested themselves. The degree of women’s nutritional status is influenced by the cultural norms, practices, and socio-economic consideration. Bureau of National Nutrition Monitoring has conducted periodical surveys on diet and nutritional status of various population groups since 1972.For the objective of this inquiry, information on the food and nutritional status of the tribal and rural population in nine Indian states was gathered in 1998-99 and 2005-06 respectively. Rural and tribal women consumed fewer calories overall than recommended, with the exception of various vegetables, roots and tuber. The study found that women who were pregnant or nursing had in sufficient nutritional intake, particularly a micronutrient shortage that is termed as hidden hunger. Nearly 4.9% of tribal women had a substantially greater prevalence of goitre. Tribal women suffer from under nourishment and have more prevalence of chronic energy in sufficiency than rural women.

Preserving plant materials in a dried form is not a new idea. It has been considered as an art for hundreds of years. Fragrant dried herbs were placed in Egyptian pyramids. Dry flower arrangements have been popular in Europe for several centuries. During 1700 A.D, the early American settlers used dry flowers to brighten their homes. Any plant material can be preserved for use as dry flowers (Al Pertuit, 2004). Though enormous work is being done in this field, most of the literature is published by horticulture amateurs. Scientific work in this area is less. However, a review of the research work done in dry flower technology is discussed in detail.

ABSTRACT

This paper provides an overview on existing IP protection and registration systems of India and adds information culled from publicly available sources pertaining to modernization efforts of Government of India towards establishment of foolproof IP protection in accordance with international treaties, conventions and bilateral and multilateral agreements.

Introduction

The floriculture industry is changing quickly around the world. Due of globalization’s impact on revenue generation in various regions of the world, flowers are consumed per person in the majority of nations. Floriculture has a long history in India. Ancient Sanskrit classics like the Rig Veda (C 3000-2000 BC), Ramayana (C 1200-1300 BC), Mahabharata (before the 4th Century BC), Shudraka (C 100 BC), Ashvagodha (C 100 AD), Kalidasa (C 400 AD), and Sarangdhara (C. 400 AD) all make mention of flowers and gardens (C 1200 AD)(Dadlani, 2021).In many nations around the world, growing flowers is one of the industries’ tactics. India began producing flowers a few years ago, and the industry is now one of the nation’s major areas for expansion and change. Both socially and economically, floriculture is very advantageous. The trade in cut flowers has grown dramatically recently, both domestically and internationally. The freshness of the flowers for a longer period of time without losing their aesthetic value is what gives a flower its attractiveness. There is a massive loss in the value of cut flowers along the marketing channel, which may be 50% of the farm’s worth (Bhattacharjee, 1999).

ABSTRACT

Himalaya represents an importantfocal point of botanical rich diversity, and homeofmanymedicinal plants known for their various therapeutic properties. Since ancient times, several plant species have been used as ethnomedicine, and only a few of these species have beenfully explored and validated scientifically. Today, cosmetic and pharmaceutical industries are the fastest growing sectors that use botanical extracts to maintain the health and support integrity of the skin and other parts of human body.Peoplearedemandingcosmeceuticaladditivesfrommarket made from plants as herbal botanicals as these causes fewer or no side effects, and therefore, ethnomedicine are gaining immence importance for cosmetic and value added products development of natural origin. Human and animal skin is the largest covering of the body as it provide barrier to the internal cells ortissues,and protectthebodyfrominfections and toxic chemicals. Keeping in mind the importance of skin, investigations and literatures were consulted to document plants protectingskininfectionsfrom external environment.Thepotential high altitude plants ofHimalaya were screened outto be used inskin care and treatmentofvarious skin pathogens.Inthe presentcommunication, total 81 plants of 72 genera belonging to 40 families are presented that have ethnobotanicalapplicationinskin care and usages incuringskindiseases. This data will provide a base-line information for cosmetic and pharmaceutical companies for developmentof various new value-added products for human and animal health care.

Dehydroepiandrosterone (DHEA) is known for many biological activities including potent cardioprotective properties. Meta analysis of human data strongly correlated diminished plasma level of DHEA with hypertension and age related anomalies and has been in clinical trial for efficacies against CVDs and hypertension. It was isolated for the first time in 1934 by Butenandt and Dannenbaum, later in 1944 extracted from human plasma (Oka et al., 2007). It is a 3β-hydroxysteroid, metabolized from pregnenolone, secreted from cells of zonareticulata of adrenal gland. Age-related decline in serum DHEA and DHEA-S(sulphate) is found to be associated with number of diseases including cardiovascular diseases, insulin resistance, cancer etc. (Arlt et al., 1999). Besides, DHEA dilates arteries, modulate hypoxia-induced vasoconstriction by activating potassium channels through soluble guanylatecyclase (sGC) activation, (Oka et al., 2007) and enhance endothelial function in particular via increasing nitric oxide synthesis (Haixian et al., 2019), induced relaxation in high K+ -induced contraction in thoracic aorta of rat embryo (Ochi et al., 2018). However, DHEA has never been explored as a vasorelaxant in mesenteric vascular bed, the major resistance bed of the circulatory system as well as its contribution in blockade of VDCC as possible mechanism for vasorelaxation. To date, the physiological role of DHEA in systemic vascular tissue as a vasorelaxant remains largely unknown and its potential use in the treatment of hypertension in human still remain inconclusive due to the increase in the risk of hormone driven cancer (Clark et al, 2018). Hence, we have chosen to explore the potential of DHEA as a vasorelaxant in conduit blood vessels like aorta and resistance blood vessels like mesenteric artery and elucidation of possible mechanism of vasorelaxation. Further, we also wanted to test the hypothesis whether in-vivo treatment of hypertensive rats with proven traditional medicine with known efficacy and acceptability could restore the level of DHEA in animal model of hypertension so as to have the beneficial effect of DHEA but without any adverse effect from external administration.

Introduction

In the verdant landscapes and bustling fields of India, the heartbeat of a nation pulses through its agriculture. For millennia, farming has been not just a livelihood but an intrinsic part of the cultural fabric, shaping traditions, festivals, and the very essence of community life. Yet, the modern agricultural practices, driven by the pursuit of higher yields, have strained the very soil that nurtured this civilization for centuries. In this crucible of tradition and progress, a beacon of hope emerges - regenerative agriculture - offering a path to restore, revitalize, and safeguard India's precious ecosystems.

Millets are essential grains that help developing nations in Asia and Africa’s semi-arid tropics, particularly India, Nigeria, and Niger, achieve food and nutrition security.They are grown on soils that are usually too weak for any other crop to grow. They can withstand drought, minimal fertiliser treatment, and temperature swings better than other cereal crops, and their short growing season makes them exceptional. Millets are all-season crops that can be grown all year and provide several security benefits (food, feed, health, nutrition, livelihood, and the environment), making them the most cost-effective agricultural security crop. Sorghum (Great millet), Bajra (Pearl millet), small millets such as Korra (Foxtail millet), Ragi (Finger millet), Kodo millet, Proso millet, Little millet and Barnyard millet are all important millet crops grown in India.

Introduction

Reviving the agricultural economy is a crucial endeavor with far-reaching implications for food security, economic prosperity, and sustainable development. Several key strategies can be adopted to achieve this goal. First, policymakers must prioritize agriculture by providing necessary f inancial support, infrastructure development, and research and development investments. Adequate credit facilities and subsidies can help farmers access essential resources and modern technology, boosting productivity and efficiency (Asian Development Bank, 2018). Promoting sustainable agricultural practices is vital to ensure long-term viability. Encouraging the adoption of eco-friendly methods such as organic farming, crop rotation, and water-efficient irrigation can enhance environmental resilience while safeguarding natural resources for future generations. Empowering farmers through training and education is essential. Equipping them with the latest knowledge and techniques enhances their capacity to adapt to changing conditions and make informed decisions about crop selection, pest control, and market opportunities. Furthermore, enhancing market linkages is critical to connect farmers with consumers and ensure fair prices for agricultural produce (African Development Bank, 2022). Developing efficient supply chains and reducing post-harvest losses can improve income prospects for farmers and attract more youth to the sector. Lastly, encouraging private sector involvement and investment in agriculture can accelerate growth and innovation. Public-private partnerships can create opportunities for technological advancements, value addition, and market expansion (Liu & Lee, 2018). Reviving the agricultural economy requires a collaborative effort involving governments, farmers, the private sector, and civil society. By addressing challenges, investing in modernization, and promoting sustainable practices, nations can create a thriving agricultural sector that contributes to food security, economic development, and environmental sustainability (Brown, 2021).

Introduction
Aquaculture, the controlled cultivation of aquatic organisms, has grown into a critical industry for global food security, economic development, and environmental sustainability. As the demand for seafood continues to rise, innovative technologies are revolutionizing aquaculture, making it more efficient, sustainable, and resilient to environmental challenges (Bostock et al., 2010). This chapter explores cutting-edge advancements in aquaculture technology, focusing on automation, precision farming, biotechnology, and digital monitoring systems.
Automation and Robotics in Aquaculture
Automation is transforming aquaculture operations by improving efficiency and reducing labour costs. Automated feeding systems, underwater drones, and robotic net cleaners are among the latest innovations enhancing fish farming productivity.
Automated Feeding Systems
Automated feeding systems have significantly improved the efficiency and sustainability of aquaculture operations by ensuring precise feed distribution, reducing waste, and enhancing fish growth rates (Fig. 1). These systems integrate advanced technologies such as artificial intelligence (AI), machine learning, and smart sensors to optimize feeding schedules and feed amounts based on fish behaviour, water quality, and environmental conditions.

Introduction

In the face of a burgeoning global population, the imperative for robust advancements in food production, especially within the aquaculture industry, is more pressing than ever. The expansion of this industry necessitates a nuanced consideration of environmental, economic, and social factors underpinned by a commitment to sustainable development. However, the intensification of aquaculture, particularly in coastal regions, poses long-term environmental risks due to increased organic matter in water, demanding innovative solutions.

In recent decades, recirculating systems have emerged as a step toward sustainable aquaculture, offering an effective approach to control wastewater. High operating costs have hindered widespread adoption despite their potential, particularly in developing countries. Enter the need for a game-changing, cost effective, and environmentally friendly technology that resonates with farmers on a large scale. This is where the Biofloc system, or Biofloc technology (BFT), takes center stage. A beacon of cost-effectiveness, sustainability, and environmental friendliness, the BFT reduces water exchange to almost zero and slashes artificial feeding ratios. This revolutionary system enhances water quality and generates microbial protein for aquatic species, addressing critical challenges faced by the aquaculture industry.

Abstract
The growing need for sustainable fishing practices has increased attention to eco-friendly fishing technologies designed to minimize their environmental impact. These technologies focus primarily on reducing habitat destruction, bycatch and overfishing, which is essential for maintaining a balanced marine ecosystem. Traditional fishing methods such as bottom trawling and non-selective fishing practices have caused notable harm to the ecosystem, including the destruction of seabeds and accidental catches of non-targeted fish populations. Advancements in eco-friendly designs, such as turtle-excluding devices (TEDs) and bycatch reduction devices (BRDs), have crucially mitigated the bycatch of vulnerable species such as turtles and juvenile fish. Modifications in longlines, traps, and biodegradable nets have further reduced ecological damage. In addition, electronic innovations such as sound navigation and ranging (SONAR) system and Global Positioning System (GPS) enable precise fish targeting, reducing unwanted habitat damage. However, the transformation to eco-friendly technologies faces issues such as investments, lack of awareness and inadequate regulatory support. Government and international bodies play a vital role in promoting these technologies through various regulatory policies and frameworks. Further, fostering cooperation among the stakeholders and using innovations can ensure a future of sustainable fisheries, balancing ecosystem conservation with economic livelihoods.
Keywords: Bycatch reduction, responsible fisheries, ghost fishing, environmentally friendly

9.1 Introduction

The world is facing various challenges, including climate change, population growth, and decreasing fertile land. It is necessary for the agricultural sector to shift towards sustainability and innovation. To revolutionize traditional farming practices, alternative cropping systems and advanced technologies like plant tissue culture in greenhouses are being explored. The goal is to optimize resource utilization, enhance crop resilience, and reduce the environmental impact. By adopting cutting-edge technologies, such as plant tissue culture, crops can be propagated and cultivated within controlled environments like greenhouses, ensuring global food security and meeting the growing population’s demands.

1. Introduction

Modern technologies like artificial intelligence, machine learning, and big data have made robotics, a concept that dates back to ancient times, much more advanced. The area of robotics, originally used in industrial settings, has now expanded its scope to include a diverse range of industries, such as industrial robots, medical robots, military robots, space robots, and humanoid robots that adopt human-like characteristics.

In accordance with this existing structure, libraries have additionally adopted the use of robots, which have shown enhanced efficacy and capabilities in executing diverse library functions. A significant number of libraries around the world have used humanoid robots to facilitate a variety of library functions, including STEM education initiatives. Academic institutions such as the Chicago Public Library and the University of Rhode Island Library organize programs centered on robotics.

Libraries may become obsolete in the 21st century if they do not begin to harness new technology and improve their information and service delivery. Robots come in a variety of shapes and sizes, and they serve a variety of functions. It is difficult to define the purpose of a specific robot and its categories because each robot has its distinct feature and varies in size, shape, color, and components.

Introduction

The Fourth Industrial Revolution or Industry 4.0 is the aggregation of advanced digital technologies into manufacturing and production processes. These technologies include Cyber-Physical Systems (CPS), the Internet of Things (IoT), big data, cloud computing, artificial intelligence (AI), and autonomous systems, which collectively facilitate smart manufacturing and interconnected industrial operations. When examining Industry 4.0’s wider ramifications, contradictions or fascinating facts surface. Its impact is widespread in society and the economy, even if it mostly concentrates on manufacturing. It may be seen in the service industry, urban development, and agriculture, among other areas (Ane & Yasmin, 2019; Kraus et al., 2022). Furthermore, the phrase encompasses not only the development of technology but also the evolution of organizational leadership and the significance of security and privacy in the digital era (Beattie & Wyer, 2019; ONIK et al., 2019). Overall, Industry 4.0 represents a transformative era where digital technologies are harnessed to create intelligent, interconnected systems that revolutionize traditional industrial practices.

1. Introduction

Organizing and disseminating the amount of information being generated in the age of information explosion is the challenge for library staff. According to Ranganathan’s fourth law of library science it is very important factor today, that how quickly library provides its information to the users. So, in this modern era to do this work beautifully, it needs the help of advance technology. Not only that, but also requires staff training.Even the library continuously changes its concepts to keeping the modernity, like library known as ‘Knowledge Resource Centre’, the books and non-book materials known as information and so on.Now a day the library has made its services better and better by using several technologies. From this point of view, the use of RFID technology is very important. RFID consists of four components vis Tags, Antenna, RFID Reader and Software. Though its use, we make the work of circulation easier, we can identify any missing documents very easily. After all, we can say that no document can be taken out of the library without a proper way. So there is acceptance of stock verification work.

Introduction

Food processing comprise of techniques employed to transform raw ingredients into final food product or to preserve the food product. Food processing industry as well as at domestic scale the food processing methods aim at providing processed food products for daily consumption by humans and animals. Food processing aims at increasing the shelf life, preserve, make nutritious or ready to eat foods, and getting the best quality final products. There are various techniques and methods which come under food processing such as drying, dehydration, fermentation, pickling, freezing, mixing, pumping, pasteurization, cooking and homogenization etc.

Rheological properties of foods are greatly influenced by various unit operations and processing methods or conditions such as heating and mechanical treatments. Processing of different food products such as dairy, fruit and vegetable products like jams and purees, chocolates, dough development etc. and basic make up of foods such as fats, proteins and others such as emulsifiers, hydrocolloids etc. affects the rheological properties of food product and which ultimately affects the quality of end product. Apart from processing conditions the compositional variations have a great impact on the textural or rheological properties of foods. The changes in rheological characteristics of a food product reflects the alterations in the molecular structure of the food material, this can aid in revealing the changes in product structure during different processing methods or conditions. In designing of various processes such as cooling, freezing and equipment design information about thermal properties is crucial. Moreover, in order to design storage structures for foods and refrigeration equipment the knowledge of thermal properties is important (Becker et al. 2003).

For rheological measurements various tests and techniques are available, such as steady and dynamic shear measurements. From the steady shear properties flow properties of the sample can be revealed whether the flow is Newtonian or Non Newtonian. In case of dynamic shear rheological properties information on viscoelastic characteristics can be withdrawn in terms of storage and loss modulus and depending on the predominance of each modulus the nature of sample can be predicted i.e. whether viscoelastic solid or viscoelastic fluid (Bhardwaj et al. 2019). Apart from these measurements, other rheological measurements are available for specific food materials, such as farinograph, alveo-consistograph, mixograph etc. are meant for study of rheological properties of dough. So, accordingly, depending upon the food material choice of rheological measurement can be made. To study the thermal transitions DSC (Differential scanning calorimeter) and DTA (Differential thermal analysis) are commonly employed. Dynamic measurements as a function of temperature or time are made in these techniques to detect the endothermal and exothermal changes. These techniques can be used to determine the phase transitions in various foods, for instance, crystallization and melting of water, lipids and other food components; denaturation of protein; gelatinization of starch and others (Roos 2015).

Humankind has always been a perceptive feel for rheological testing, e.g. in physical and visual evaluations of material properties such as hardness, stiffness, flexibility, and viscosity, and their relation to end-use quality characteristics. People often naturally measure the quality of solid foods by gently squeezing them, or liquid viscosity is measured by gently rotating the liquid in its container. These intuitive measurements gradually became formalized into quantitative descriptions of material properties.

Rheology can be defined as the study of how materials deform, flow or fail when force is applied. The name is derivated from Greek word: rheos, meaning the river, flowing, streaming. Therefore rheology means “flow science”. Rheological investigations not only include flow behaviour of liquids, but also deformation behaviour of solids. Normally, to measure rheological properties, the material is subjected to a controlled, précised and quantifiable distortion or strain over a given time and the material parameters such as stiffness, modulus, viscosity, hardness, strength or toughness are determined by considering the subsequent forces or stresses (Dobraszczyk and Morgenstern, 2003). The term rheology was coined by Eugene C. Bingham, a professor at Lafayette College, in 1920, from a suggestion by a colleague, Markus Reiner (Steffe, 1996)

Abstract

Rheological properties of dough from different flours are very important to know about the kneading and modeling process especially for development of bakery products. Rheological testing is helpful to examine the structural and fundamental properties of dough. The basic principle underlying evaluation of rheological properties are mechanical behavior of the dough, in conjunction with the physical structure of the dough, the molecular structure of the protein continuous phase in the dough and with chemical reactions of functional groups. This chapter presents some of the methods currently used in bakery industry for determining the rheological characteristics of the flour and the dough. The instruments such as Farinograph, Mixograph, Extensigraph, Alveograph and Amylograph, which are used for the measurement of dough rheological properties (due to visco-elastic behavior of dough) were described.

It is an inflammatory condition that mainly affects the children and young people in their teens. It is considered to be an allergic condition that mainly attacks the connective tissues of the body, causing joint pains and St. Vitus' dance due to central nervous irritation and skin lesions. The most serious damage that this disease brings is the damage to the valves does the heart. Certain streptococcus germs present in the throat are sometimes responsible.

The excessive and imbalanced use of nitrogenous fertilizers in the last few decades to meet the challenges of growing food demand of Worlds population has led to serious consequences of soil and water pollution, leaching of toxic nitrate into ground water and volatilization of nitrogen oxides into the environment. Therefore, judicious management of nitrogen in the environment is very much essential in the development of more productive and sustainable agriculture. Rapid declining of non-renewable energy sources viz. petroleum products, natural gas as well as energy crisis in the recent days, release of several pollutants during production of fertilizer N has also necessitated the development of alternative and/or supplemental technologies to obtain the fertilizer N for crop production.

The role of leguminous plants in improving the soil fertility is known for centuries. The nitrogen uptake in legumes by some unknown process was demonstrated through agronomic experiments by J.B Boussingault in 1838, which was opposed by Liebig and others. The presence of bacteria in the roots nodules of legumes was observed by P.G Lachmann (1858). M. Woronin (1866) further examined and observed them to be rod-shaped and motile.

INTRODUCTION

Rhizoctonia solani Kuhn (teleomorph: Thanatephorus cucumeris (Frank) Donk is cosmopolitan in soils. It is a destructive plant pathogen with an almost unlimited host range. The fungus inhabits in soils and causes damping-off of seedlings, root, crown and stem rots, and occasionally foliar blight (Baker, 1970). R. solani is an important symbiont with the saprophytic seedling stage (protocorm) of many orchids (Warcup, 1985). It aggressively colonizes organic matter and is one of the fastest growing fungi. According to available information, the isolates of R. solani possess the following-characteristics (Plate 2.1).

Under natural conditions, the largest source of labile carbon (C) inputs to the soil is root exudates (Bertin et al., 2003; Hutsch et al., 2002; Kuzyakov 2002). Roots exude a variety of low-molecular weight organic compounds, including sugars, amino acids, organic acids (Bertin et al., 2003), but also contain hormones, vitamins, amino compounds, phenolics and sugar phosphate esters (Uren, 2001). These compounds are rapidly metabolized; for example, Hutsch et al., (2002) found that 64–86% of maize root exudates were respired by soil microorganisms. The effect of root exudates depends on the distance that they can diffuse away from rhizoplane (Gupta and Mukerji, 2002).

Abstract

The rhizomicrobiome plays a vital role in maintaining plant health and is highly influenced by the root exudates of the host plant. Plants select a subset of microbes at different stages of their development, and determine the microbiome community composition in its immediate vicinity presumably for specific functions. The rhizomicrobiome is composed of diversified microbial community with specific functions and is highly influenced by the plant type, soil type and environmental conditions. The rhizomicrobiome communities apart from promoting plant growth also elicit induced systemic tolerance to salinity and drought in stressed plants. Bacterial communities producing 1-aminocyclopropane-1-carboxylate (ACC) deaminase modulate stress ethylene in plants and alleviate the effects of abiotic stress and increases plant adaptability to stressed environment.

Rhizosphere

The term Rhizosphere was introduced by the German scientist, Hiltner in 1904. It is region of the soil, which is subjected to the influence of plant roots. It is the unique environment under the influence of plant roots. The roots of plants are not only involved in the uptake of mineral nutrients and water for plant growth, but they also release a wide range of organic compounds in the surrounding soil.

Abstract

Soil is the natural growth media for living plants and microbes, and rhizosphere is niche for a group of soil microorganisms inhabiting around the plant root zone. The warmed and humid agro-climatic conditions of the area aggravate A. flavus contamination and aflatoxin production in maize grains from field to storage. In this article aflatoxin contamination in maize, antagonistic activity of rhizosphere microbes against toxigenic A. flavus, through fungi, antagonistic activity of rhizosphere bacteria against toxigenic A. flavus, bacterization of stored maize seeds for aflatoxin control and inhibition of aflatoxin production in stored maize seed with rhizobacteria has been discussed in detail.

To a soil microorganism, the rhizosphere is like a lush oasis in the desert. In comparison to near-starvation conditions of the bulk soil, the rhizosphere is the place where nutrients are plentiful and microorganisms flourish. The term rhizosphere was first used by Hiltner in 1904 to describe the zone of soil under the influence of roots. The rhizosphere can extend more than 5 mm from the root and is the area of increased microbial activity due to exudation of low molecular weight compounds from root cells. The rhizoplane is the surface of plant root and any strongly adhering soil particles. The microbial populations that colonize the interior of the root and from intimate associations with the root are considered endophytes.

Introduction

The rhizosphere plays a pivotal role in the boundary where biological and chemical activities profoundly impact various landscape and global-scale processes. Understanding these processes is crucial for maintaining planetary health and sustaining the organisms inhabiting it (Morrissey et al., 2004). To enhance the yield potential of staple food crops, leveraging the root systems of plants becomes essential to meet the anticipated doubling of global food demand in the future (Gewvin, 2010; Zhang et al., 2010). Amidst the challenges posed by global climate change and the burgeoning global population, there’s an increasing need for greater productivity from cultivated food, animal feed, and fibers on less favorable and often infertile lands—conditions already prevalent in many developing nations (Tilman et al., 2002). Advancing our understanding and control of rhizosphere processes stands as a critical frontier in research for the next decade.

Rhododendron belongs to family Ericaceae. The word “Rhododendron” is derived from the ancient Greek word “rhódon” which means rose and “déndron” which means tree. This genus is characterized by shrubs and small to (rarely) large trees. The smallest species grow up to 10–100 cm tall and the largest Rhododendron giganteum is reported to grow over 30 m tall. They are noted for their clusters of large flowers. The alpine species have small flowers and small leaves and tropical species grow as epiphytes. The colour of the rhododendron flower is available in nearly every colour of the rainbow including various shades of blue, yellow, pink white, red, orange and purple. Rhododendron flower from January through August, depending on the location and the climate.

Rhododendron belongs to family Ericaceae. The word “Rhododendron” is derived from the ancient Greek word “rhódon” which means rose and “déndron” which means tree. This genus is characterized by shrubs and small to (rarely) large trees. The smallest species grow up to 10–100 cm tall and the largest Rhododendron giganteum is reported to grow over 30 m tall. They are noted for their clusters of large flowers. The alpine species have small flowers and small leaves and tropical species grow as epiphytes. The colour of the rhododendron flower is available in nearly every colour of the rainbow including various shades of blue, yellow, pink white, red, orange and purple. Rhododendron flower from January through August, depending on the location and the climate.

Rhododendron tomentosum Harmaja has been used in ethnomedicine for the treatment of various ailments such as cough and cold, insect bites, rheumatism as well as a repellent. The essential oil of wild rosemary with rich polyphenolic fraction which possesses analgesic, anti-inflammatory, antimicrobial, antiviral, antifungal, insecticidal, antidiabetic, antioxidant and anticancer properties (Dampc et al., 2013).

ORIGIN AND DISTRIBUTION

Majority of Rhododendron species are native to the eastern Himalaya and southeast Tibet, Asia, North America, Europe and Australia along with the islands of Java, Sumatra, Borneo, New Guinea and the Philippines. The highest species diversity is found in the Himalayas from Uttarakhand, Nepal and Sikkim to Yunnan and Sichuan with other significant areas of diversity in the mountains of Korea, Japan and Taiwan. The rest are broadly spread throughout the northern hemisphere in relatively small isolated populations in Japan, northwestern North America, the Appalachian and the Caucasus Mountains. The tropical Rhododendron species range from south-east Asia to northern Australia with 55 known species in Borneo and 164 in New Guinea. Interestingly, the species in New Guinea are native to subalpine moist grasslands at around 3000 metres above sea level in the Central Highlands. Relatively fewer species occur in North America and Europe. The genus Rhododendron of Indian Himalayan Region (IHR) has been enumerated a total of 87 species, 12 subspecies and 8 varieties and have been recorded in IIHR. Among these 6 species and one subspecies are reported from Western Himalaya. The maximum concentration of 86% was observed in Arunachal Pradesh (75 species). The species of Rhododendron exhibit significant diversity in habit and broad range of distribution from the altitude of 800-6000 m and the best range is observed in 3001-3500 m altitudes. An analysis revealed that 20 taxa are endemic, 30 are rare, 24 are endangered, 3 are vulnerable and 47 taxa have to be assessed (Sekar and Srivastava, 2010). More than 50 hardy species of Rhododendron have been introduced from the wilds of China, Tibet, Bhutan and Vietnam since 1981 (Cox, 2012). George Forrest collected more than 400 Rhododendrons in China in between 1904 to 1932 for introduction to the western world (Geng, 2010).

Morphological characteristics

Rewand chini is a perennial stout herb, 1.5–3.0 m tall. Roots are very stout and thick. Leaves are radical, orbicular, or broadly ovate, very large, and 30–45 cm in diameter with long petioles.

Floral characteristics

Flowers are small, dark purple or pale red in axillary panicles. The plant has three to five years of juvenile phase, followed by reproductive phase. Flowering occurs in June–July. Seeds are collected in late August–September, when they turn dark brown. Seed production potential varies from 300 seeds to 950 seeds per plant.

Distribution

The species occurs in the temperate Himalayas, from Kashmir to Sikkim, at an elevation of 2800–4000 m. It is found in alpine zone on rocky soil, moraines, and crevices, between boulders and near streams in specific pockets. It is sporadically cultivated in the North-eastern states for its leaves, which are used as vegetable.

Climate and soil

Rewand chini plant is restricted to the temperate, sub-alpine, and alpine zones of the Himalayas. Well-drained, porous, humus-rich soil is suitable for its cultivation. It prefers exposed or partially shaded habitat and can be cultivated on altitudes above 1800 m in height.

As early as the 16th century, rhubarb was farmed and marketed for therapeutic purposes. According to History of Fruit, by the 19th century, rhubarb had acquired prominence as a food and vegetable source, with a redder stem and sweeter flavour. Rhubarb is a native of Central Asia, and knowledge of its therapeutic properties dates back five thousand years in China. It was also widely used by Arabs, Greeks, and Romans in antiquity. It came as no surprise to Marco Polo when he discovered it in China in 1271.

Botany and taxonomy: Rhubarb refers to the fleshy, edible stalks (petioles) of Rheum species and hybrids (culinary rhubarb) of the Polygonaceae family, which are cooked and eaten. Rhubarb refers to the entire plant, which is an herbaceous perennial with short, thick rhizomes. The big, triangular leaves are inedible due to high quantities of oxalic acid and throne glycosides. 

The word RHUS means red because its flowers and leaves are red in colour. TOXICODENDRON means poison tree.

The effects on the skin, rheumatic pains, mucous membrane affections, and a typhoid type of fever, make this remedy frequently indicated. It mainly affects fibrous tissues, joints, tendons, sheaths producing pain and stiffness. Ailments from strains, over lifting, getting wet while perspiring. Rheumatism in the cold season.

Rhus Tox is the first remedy one should think of in any muscular pain where the cutting pain and soreness are temporarily relieved by movement. This is in direct contrast to Bryonia where movement aggravates pain.

Ribbed gourd (Luffa acutangula (L) Roxb.) belonging to the family Cucurbitaceae is a well known vegetable variety in India. The seed production can be done in both summer and rainy season.
Method of seed production

Bitter gourd is a cross-pollinated crop which occurs through bees. Seeds should be allowed to set by open-pollination in isolation. The isolation distance maintained between the fields of other varieties and the fields of the same variety not conforming to the varietal purity requirements for certification is 1000 metres for foundation and 500 metres for certified seed production.

I. FILL UPS

1. The stigma receptivity of ribbedgourd is_____.
2. Ribbedgourd is a _____ pollinated crop.
   1. Isolation distance for foundation seed production of ribbedgourd is _____.

The field is ploughed once and harrowed twice or thrice until the soil becomes well puddle. Beds are made slightly raised of 1 – 1.5 m in width and conveniently large in size and drainage channels in between the beds. The total area of nursery required to plant one hectare of land is 20 cents (800 m2 ). This method is suited where assured irrigation facilities are available. The beds should not be allowed to dry because they develop cracks and the seedlings will get spoiled. This method keeps down the weeds in the nursery. Seedlings are transplanted at 21-25 and 25-30 days age for SDV and MDV, respectively. Sparse sowing is recommended in case of hybrid rice. One kg of hybrid seed is sown in one cent area of nursery. This helps in good tillering and robust seedlings and makes it possible to transplant single seedling per hill. Seedlings are planted at 20-25 days.

3.1. Introduction

Rice is grown in varying geographical locations and climatic situations. Most of the rice area lies between the equator and 400 N latitude and between 700 and 1400 E longitude. It grows well from tropical to sub-tropical warm and temperate climatic regions up to 400 S and 500 N of the equator. However, the highest yields are obtained in the region between 300 and 450 N of the equator. The average yield generally increases as the countries are situated further away from the equator (Chatterjee and Maiti, 1985). In India, rice grows in regions from 80 N to 350 N latitudes under widely varying conditions of the land, rainfall, altitude and climatic conditions. It is grown at the sea level in river deltas as in parts of Kerala, as deepwater in states of West Bengal, Assam and Bihar; at high altitudes of 914 to 1524 m or even more as in Kashmir, and in the slopes of the Himalayas. A temperature range of 200 C to 37.70 C is required throughout the life period of rice crop.

1. Introduction

Celiac disease (CD) is an immune-mediated enteropathy triggered by the ingestion of gluten in genetically susceptible individuals. Gluten is the protein component in wheat, rye and barley. In the last 10 years, cutting edge scientific developments in this disease have led to the formulation of new concepts of epidemiology, pathophysiology and clinical manifestations. At present, the only available treatment for CD is a strict gluten-free diet (GFD) (Mulder et al., 2013; Theethira and Kelly, 2014). Until recently, the geographical distribution of CD was mostly restricted to Europe and other developed countries, such as the United States, Canada and Australia. Celiac disease is not only frequent in developed countries, but it is increasingly found in areas of the developing world, such as North Africa (Malekzadeh et al., 2005), Middle East (Rostami et al., 2004) and India (Basu et al., 2014, Deora et al., 2014; Yachha and Poddar, 2007). New epidemiological studies have brought evidence that this disorder is common in many developing countries as well, showing that the ‘global village of celiac disease’ has indeed a worldwide distribution (Fasano and Catassi, 2001).

The only available treatment for celiac disease is the strict, lifelong avoidance of gluten. When gluten is removed from the diet, the small intestine will start to heal and overall health should improve (Fasano and Catassi, 2001). Traditional substitutes for gluten-containing grains have been rice, tapioca, corn, and potato. However, more nutrient-dense grains, seeds, nut flours, and legumes are being incorporated into the diet to provide an enhanced palatability, variety, and nutritional quality. These include sorghum, millet, teff, quinoa, amaranth, flax seed, and buckwheat.