eChapters

1. Introduction

Pulpy and juicy fruits like orange, guava, banana, grape, mango, papaya, pears, apples and jackfruit can be converted into fruit products like squashes, juices, cordials and ready-to-serve (RTS) fruit beverages. These RTS fruit beverages are both refreshing and thirst quenching and have become very popular. Liquid fruits are the clarified juices prepared from these pulpy and juicy fruits. There is a demand for liquid fruits in the international market for various applications. The liquid fruits can be used as a natural alternative to synthetic beverages. They can be suitably concentrated or diluted, blended with other juices and also can be carbonated as fruit based soft drinks. Removals of pulpy material from the juices make them easier to preserve by pasteurization and are amenable to carbonation. Pulpy fruits can be successfully processed into liquid fruits (clarified juices) by using pectic enzymes. The emphasis of the fruit juice processing industry has, so far, been mainly on conventional clarification processes like enzymatic and chemical treatments followed by filtration using filter aids; and concentration by vacuum evaporation.

1. Introduction

Membranes separation processes have gained widespread applications in food industry. High selectivity of membrane has been exploited for separating a particular component from complex liquid food mixture and for controlled release of active ingredients like preservatives or flavor compounds. Today, a number of chemical processes utilizing the unique properties of membrane have been developed for commercial application in food industry with specific advantage of low energy requirement. Membrane separation/molecular sieving is one among those food engineering principals which has found broad range of applications including concentration of heat labile compounds, recovery of solvent, downstream processing, flavor volatile recovery, deacidification, desalination, waste water treatment etc

Introduction
Ensuring environmental sustainability through wastewater treatment is a crucial part of the United Nations’ Sustainable Development Goals (SDGs). The global shortage of clean water and the potential for future water scarcity, particularly in developing countries, represent a major crisis for humanity in this century and beyond. The UN reports that 1.2 billion people currently lack access to clean drinking water, and half of the global population does not have sufficient water purification. By 2025, it is expected that 1.8 billion people will live in regions facing severe water shortages (WHO, 2018). Currently, onethird
of the world’s population lives in water-stressed countries, and this figure is expected to increase to two-thirds by 2025. By 2050, between 2 and 7 billion people may face water shortages. The worsening water situation is largely due to inadequate water supplies and rising demand in developing countries driven by rapid population growth and industrialization. Contaminated water and poor sanitation contribute to nearly 60% of global illnesses. The World Health Organization (WHO) estimates that about 2.4 billion people lack basic sanitation facilities, and over 1 billion lack access to safe drinking water. Unclean water can lead to diseases such as diarrhea, cholera, dysentery, guinea worm infections, typhoid, intestinal worms, and trachoma (WHO/UNICEF, 2010). The World Health Organization (WHO) reports that four billion people suffer from diarrhea each year, leading to nearly 1.8 million deaths, with 90% of these deaths occurring in children under five years old. The quality of available water is declining because of rising pollution from industrial, agricultural, and other human activities. This issue is becoming a significant environmental problem.

Introduction

Since 1990, there has been a lot of interest in functional foods and nutraceuticals, particularly because of their impact effects on human health and the prevention of certain diseases. Apart from growing good quality natural products, there are challenges in extracting, refining, analyzing active ingredients, and evaluating safety before an effective, reliable product is made [1,2]. Special attention needs to be focused on separation and purification mainly because 40-80% of the cost of production is assigned to separation and purification unit operations in making functional foods and nutraceuticals. There are also several carotenoids and polyphenol products that have been identified from various plants and a single plant could contain highly complex profiles of these compounds. These are labile to heat, air, and light, and they may exist at low concentrations in the plants. This makes the separation and detection of nutraceuticals a challenging task. The membrane techniques used for the separation of nutraceuticals from the natural products, as well as their applications and influencing factors are discussed in this chapter [3, 4].

ALL MOLECULES MOVE CONTINUOUSLY BY SIMPLE DIFFUSION

Heat energy causes molecules to move randomly (sometimes called Brownian motion)

If the concentration of molecules is different in 2 regions (this produces a concentration gradient), diffusion will cause molecules to move from a region of high concentration to one of low concentration

The higher the concentration gradient the more rapid the net diffusion

Diffusion evens out the concentrations so they are equal everywhere (maximum entropy)

If 2 different substances have the same concentration gradient, usually one will move faster than the other

Differences in speed between molecules with the same concentration gradient are given in terms of diffusion constants

A substance with a high diffusion constant moves faster than one with a low diffusion constant

In general, large molecules move slower than small molecules

Diffusion across a membrane is called permeability, and membrane diffusion constants are called permeability constants

Introduction
Public speaking is a skill that blends art and science. It requires a speaker to convey ideas effectively while engaging and inspiring an audience. One technique often employed by speakers is “memorize speaking,” where the speech is committed entirely to memory and delivered without notes. While it has its challenges, memorize speaking can be an invaluable skill, especially in professional settings, competitions, or high-stakes events where precision and fluency are essential.
This chapter explores the concept of memorize speaking, its benefits and challenges, strategies for mastering it, and practical tips for delivering impactful memorized speeches.
Understanding Memorize Speaking
Memorize speaking refers to delivering a speech that has been rehearsed to the point where it can be presented from memory without reliance on notes or visual aids. Unlike extemporaneous speaking, which relies on a general outline and prompts spontaneity, memorize speaking demands a more structured and methodical approach.
Memorize speaking is often used in contexts such as:
1. Public performances like theater or TED Talks.
2. Competitions where precision and timing are critical.
3. Professional presentations that require polished delivery.

1. The first Director of IARI was ?????.
   1. M. S. Randhawa
   2. B. P. Pal
   3. M. S. Swaminathan
   4. G. Kalloo
2. In vegetable blanching is done for?????.
   1. Removal of microorganism
   2. To activate the enzymes
   3. To retention colour
   4. All of the above
3. Viviparous refers to?????.
   1. Germination of seed on mother plant
   2. Germination of seed in the field
   3. Germination of the seed on monoecious plant
   4. Germination of seed on any place
4. Sourness in radish is due to ?????.
   1. Isosinate
   2. Isothiocinate
   3. Anthocyanin
   4. All of the above

About Mendel

Born in what is now the Czeck Republic.

Grew up in an agricultural environment.

Became a priest-teacher at a local monastery.

Took courses in botany, physics, and mathematics at the University of Vienna.

Gregor Mendel was the first person to comprehend some of the most basic principles of genetics. He reached these understandings in the mid-nineteenth century; working in what is now the Czech Republic and using as his experimental subjects a species of garden pea, Pisum sativum..

Carried out “hybridization” experiments with the common garden pea.

Mendel’s hypotheses became the laws of inheritance in modern genetics.

Mendel’s work re-discovered by Correns, DeVries, and Tschermak in 1900. Period of modern “Mendelian” genetics begin.

Historically the first and still the most conclusive evidence for the existence of genes comes from the phenomenon of segregation of traits observed in the offspring of hybrids between individuals or strains that differ in some recognizable respect. The principle of segregation was formulated by Gregor Johann Mendel in 1866 under such peculiar circumstances that the scientific world failed to recognize it until after a lapse of 34 years. In the first place Gregor Mendel was not primarily a biologist but a Monk in the Augustinian monastery at Bruenn, Austria (now Brno, Moravia in Czech Republic). During his childhood, Mendel worked as a gardener and studied beekeeping. He became part time monk because it enabled him to obtain an education without having to pay for it himself. From 1840 to 1843 he studied Practical and Theoretical Philosophy and Physics at the Philosophical Institute of the University of Olomouc. Upon recommendation of his teacher, Mendel entered the Augustinian St. Thomas Abbey in Brno and began his training as a Priest. Born Johann Mendel, he took the name Gregor upon entering religious life. Mendel worked also as a substitute High School teacher. In 1850, he failed the oral part of his examination and could not become a certified High School Teacher. In 1851, he was sent to the University of Vienna to study further so that he could get formal education. Mendel returned to his Abbey in 1853 as a Physics teacher. In 1856, he took the examination to become a certified teacher but again failed the oral part.

Introduction
Plant breeding involves the application of natural and artificial selection to create heritable variations and novel combinations of alleles in plants, aiming to identify those with new and useful properties. The primary goals of plant breeding are to develop crop varieties with unique and superior traits for various agricultural applications. Commonly targeted traits include tolerance to biotic and abiotic stresses, high grain or biomass yield, end-use quality characteristics such as taste, and specific concentrations of biological molecules (proteins, sugars, lipids, vitamins, fibers). Additionally, ease of processing (harvesting, milling, baking, malting, blending, etc.) is often a key consideration. The specific goals of a plant breeding project are highly dependent on the intended market for the product. For instance, in wheat, varieties bred for high gluten protein content are used for making noodles and breads, while varieties selected for low protein content are used for pastry flours. Similarly, grape varieties are developed with varying chemical compositions to suit different applications such as juices, red and white wines, and jams.
Plant breeders utilize various techniques to enhance the genetic composition of crops, with successful strategies depending on the plant’s physical, physiological, and hereditary characteristics. Different breeding approaches are needed for self-pollinating, cross-pollinating, and clonally-propagated plants. As human civilization has advanced, the methods used by plant breeders have evolved, incorporating humanity’s growing understanding of genetics.

A fair number of practical breeding experiments were done in ancient times

People knew there was a connection between sex and reproduction

The idea had developed that “like begets like”

By selecting certain plants and animals and breeding them many domestic varieties of plants and animals had been developed

Example: corn was developed from a wild grass in Mexico and Central America, probably about 5000 years ago

149 of the top 150 plant crops were domesticated by primitive man

Mendel’s 3 Laws (Segregation, Independent Assortment, Dominance).In the 1860s, an Austrian monk named Gregor Mendel introduced a new theory of inheritance based on his experimental work with pea plants.Mendel believed that heredity is the result of discrete units of inheritance, and every single unit (or gene) was independent in its actions in an individual’s genome.According to this Mendelian concept, the inheritance of a trait depended on the passingon of these units.For any given trait, an individual inherits one gene from each parent so that the individual has a pairing of two genes. We now understand the alternate forms of these units as ‘alleles’.If the two alleles that form the pair for a trait are identical, then the individual is said to be homozygous and if the two genes are different, then the individual is heterozygous for the trait.The breeding experiments of the monk in the mid-1800s laid the groundwork for the science of genetics.He studied peas plant for 7 years and published his results in 1866 which was ignored until 1900 when three separate botanists, who also were theorizing about heredity in plants, independently cited the work.In appreciation of his work he was considered as the “Father of Genetics”. A new stream of genetics was established after his name as Mendelian genetics which involves the study of heredity of both qualitative (monogenic) and quantitative (polygenic) traits and the influence of environment on their expressions.Mendelian inheritance while is a type of biological inheritance that follows the laws originally proposed by Gregor Mendel in 1865 and 1866 and re-discovered in 1900.
Mendel carried out breeding experiments in his monastery’s garden to test inheritance patterns. He selectively cross-bred common pea plants (Pisum sativum) with selected traits over several generations. After crossing two plants which differed in a single trait (tall stems vs. short stems, round peas vs. wrinkled peas, purple flowers vs. white flowers, etc), Mendel discovered that the next generation, the “F1” (first filial generation), was comprised entirely of individuals exhibiting only one of the traits. However, when this generation was interbred, its offspring, the “F2” (second filial generation), showed a 3:1 ratio- three individuals had the same trait as one parent and one individual had the other parent’s trait.

Mental and emotional health encompasses psychological, emotional, and social well-being. It influences how people think, feel, behave, make decisions, cope with difficulties, and interact with others. Mental health is not merely the absence of mental illness; it is an essential component of overall health and quality of life. Regular self-care can help individuals maintain emotional balance and support treatment and recovery when mental-health problems occur. Psychologists and mental-health professionals have an important responsibility to assist emotionally distressed individuals in overcoming adjustment and personality-related problems and leading normal, productive lives. Mental and emotional difficulties may be triggered by stressful circumstances, including bereavement, family conflict, relationship changes, physical illness, or incomplete recovery caused by stopping treatment prematurely. Recognising such triggers and early warning signs can help prevent symptoms from worsening. Therefore, proper care, healthy habits, professional support, and preventive strategies are necessary to promote lasting mental and emotional well-being throughout every stage of human life.

According to the World Health Organization (2005), total health means the physical, mental, emotional and social health of a person. In these days of turmoil and hustle-bustle of modern life, emotional health has become as important as physical and mental health of an individual. A man should be physically fit, mentally alert, emotionally matured and socially adjusted, to lead a well-balanced life. A man who is having sound physical and mental health will also have good emotional health which will lead to social health. It means that all these four components of health are interrelated.

Emotional health depends upon a man’s emotional wellbeing, which is based on our self-concept, and self-esteem, that is how we feel about ourselves and behavior which is appropriate and healthy. Emotionally healthy people can adjust to their environment and solve their problems effectively and efficiently and in this way, they get satisfaction and pleasure out of life. So, it is essential to study the mental and emotional health of an individual, as both mental and emotional health are interrelated. It means that a person who is mentally healthy will also be emotionally healthy. In the same way, one who has good emotional health will also have good mental health.

For the maintenance of mental health, positive behavior or positivity in life is a very essential trait. Positive behavior helps develop love, mental peace, harmony, cordiality, happiness, and better inter-personal relationships; whereas negative behavior is responsible for creating animosity, hatred, fear and anger among us, which adversely affects our mental health. It will make us unhappy, miserable, and sad.

Positive behavior leads to positive thinking, positive feelings, and positive actions. On the other hand, negative behavior develops negative thoughts, negative attitudes, as well as nefarious activities. Psychologists are working in this area to make the life of a man happy, effective, and successful. This area is called Positive Psychology, which is a recent branch of psychology that is the youngest area in the behavioral sciences.

Positive psychologists seek “to find and nurture genius and talent and to make normal life more fulfilling” (Crompton, 2005) and not simply to treat mental illnesses. They are trying to make the world a happier place.

Disorders of Children and Youth
Although it is sometimes assumed that childhood and adolescence are times of carefree bliss, as many as 20% of children and adolescents have one or more diagnosable mental disorders. Most of these disorders may be viewed as exaggerations or distortions of normal behaviors and emotions. Childhood mental and developmental disorders encompass neurodevelopmental, emotional and behavioral disorders that have broad and serious adverse impacts on psychological and social wellbeing. Children with these disorders require significant additional support from families and educational systems. These children are more likely to experience a compromised developmental trajectory, with increased need for medical and disability services, as well as increased risk of contact with law enforcement agencies (Fergusson and others, 1993).
Like adults, children and adolescents vary in temperament. Some are shy and reticent; others are socially exuberant. Some are methodical and cautious and others are impulsive and careless. Whether a child is behaving like a typical child or has a disorder is determined by the presence of impairment and the degree of distress related to the symptoms. For example, a 12-yr-old girl may be frightened by the prospect of delivering a class report in front of her class. This fear would be viewed as social phobia only if her fears were severe enough to cause significant impairments and distress. The mental disorders that children can develop are commonly divided into two groups: disruptive or externalizing behavior disorders (e.g., attention-deficit hyperactivity disorder, conduct problems) and emotional or internalizing behavior disorders (e.g., anxiety, depression). In this unit we would focus on types of internalizing and externalizing disorders in children. We will also discuss in depth the etiology and treatment involved in these disorders.

Suicide among young people is a very serious problem in our society. Suicide is the second leading cause of death among children, adolescents, and young adults aged 15 to 29. Most children and adolescents who attempt suicide have a significant mental health disorder, usually depression.

Suicide is a problem throughout the lifespan. Suicidal behavior refers to talking about or taking actions related to ending one’s own life. Suicidal thoughts and behaviors should be considered a psychiatric problem. It is like injuring oneself and harming oneself. It is ending the life of the self.

Suicide is a psycho-social problem. It is related to the emotional life of a man. It has social ramifications, as it is a criminal offence, which is a kind of crime. Suicide is an act of intentionally causing one’s own death. It is considered self-murder. It is not concerned with inter-personal relations, but it deals with intra-personal relations. Because it is a self-injurious behavior with the desire to end one’s own life, it is a kind of mental disorder

Mental health is the condition of the mind and mental processes, which function well within the societal laws and prevailing circumstances of a person. Just like physical health means being away from any physical ailments, similarly, mental health is the absence of any mental illnesses or mental disorders. Mental health is a life adjustment. If a person is well-adjusted in his personal, social, and professional life, it means that he has good mental health. Mental health refers to cognitive, behavioral, and emotional well-being. It is all about how people think, feel, and behave.

Mental health is an integral and essential component of health. The WHO constitution states: “Health is a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity.” Mental health is a state of wellness in which an individual realizes his or her abilities, can cope with the normal stresses of life, can work productively, and can contribute to his or her community. Mental health is fundamental to our collective and individual ability as humans to think, emote, interact with each other, earn a living, and enjoy life. On this basis, the promotion and maintenance of mental health can be regarded as a vital concern of individuals, communities, and societies throughout the world.

Here in this chapter, we will discuss the concept and importance of mental health in our ordinary lives.