Bee Products - Chemical and Biological Properties


Book Description

This book presents an updated discussion of the chemical composition and biological properties of the main bee products. Specific attention is focused on the beneficial biological activities of bee products in human health. Honey, royal jelly, propolis, bee pollen and bee venom are used as nutriment and in traditional medicine. Their composition is rather variable and depends on the floral source and external factors, such as seasonal, environmental conditions and processing. Bee products are rich in several essential nutrients and non essential nutrients, as sugars, minerals, proteins, free amino acids, vitamins, enzymes and polyphenols, that seem to be closely related to their biological functions. The effects of these products in nutrition, aging and age-related diseases, cancer, neurodegenerative diseases and pathogen infections are discussed.




Biological Properties


Book Description

Biological Properties is a collection of papers that deals with the biological properties of iron-sulfur proteins. One paper reviews the role of electron paramagnetic resonance in forwarding knowledge about iron-sulfur proteins. Iron-sulfur proteins are iron proteins where sulfur is a ligand of the iron, of which the iron is not simultaneously held by a stronger ligand such as porphyrin. Another paper discusses the role of bacterial ferredoxins in coupled oxidation-reduction reactions, the role of hydrogenase in oxidation-reduction, as well as the bacterial iron-sulfur proteins, such as azoferredoxin and molybdoferredoxin. Abiological models of nitrogenase involve molybdenum and iron with sulfur ligands; these abiological systems can be the first models that show the biological activity of iron-sulfur enzymes which these systems try to copy. One paper investigates the role of iron-sulfur proteins in photosynthesis, particularly the photoreduction of ferrodoxin, the mechanism of NADPH formation, and the possible role of ferrodoxin in cyclic photophosphorylation. This collection is suitable for bio-chemists, cellular biologists, micro-biologists, and scientists involved in research in the biological disciplines.




Fungal Extracellular Vesicles


Book Description

This book provides an in-depth overview on the manifold functions of fungal extracellular vesicles (EV) which span from cell-to-cell communication, pathogenicity and stimulation of host’s immunity to export of hundreds of biomolecules. The book summarizes the present knowledge on the impact of extracellular vesicles on fungal biology. Extracellular vesicles participate in fundamental biological processes in all living cells but only during the last 15 years the production and functions of EVs were identified and studied in fungal species too. Up to date more than 50 independent studies have shown that extracellular vesicles are produced by at least 20 fungal species. The book addresses researchers and advanced students in Microbiology, Mycology and Biotechnology.




Physical and Biological Properties of Agricultural Products


Book Description

The demand for agricultural production has been changing from quantitative stability to high qualitative standards. Especially in the first-growing Asian market, people now expect high standards in the quality of agricultural products, not cheap ones cultivated on a large scale any more. In this trend, it is important to maintain the safety and quality of agricultural products, which as organisms are also a challenge to handle as with other industrial products. This book offers comprehensive knowledge and technology to help assure and guarantee the high quality of agricultural products. The book analyzes and reviews product properties from physical and biochemical viewpoints, such as structure, dynamics, sound, electricity, and light. It also includes the design of processing machinery used in post-harvest operations, starting from harvest, preservation, processing, cooking, storage, to transportation and indispensable sorting techniques that include taste, smell, and freshness, notably the sweetness prediction of fruits with near infrared spectroscopy. This research study was developed in Japan, a leading country in the Asian market for high quality agricultural products, and it provides a full range of practical information for producing high quality agricultural products. The book covers comprehensive knowledge and technology applied to quality food preservation, as well as the safety and diversity in food. Contents include: Physical Properties of Agricultural Products * Structural Characteristics Related to Physical Properties * Fundamental Physical Properties * Thermal Properties * Mechanical Properties * Acoustic and Vibrational Properties * Electric Characteristics * Optical Properties * Biochemical Properties.







GAPDH: Biological Properties and Diversity


Book Description

The book represents a comprehensive review and synthesis of the biomedical literature that spans over a half-century on a single protein called glyceraldehyde 3-phosphate dehydrogenase (or, GAPDH). Due to the protein’s involvement in a vast array of cellular activities, GAPDH is of interest to the cell biologist, immunologist, virologist, biochemist etc. The protein has a significant role in fertility, cancer and neurodegeneration, suggesting that this book can be a vital resource for drug development. GAPDH function may provide insight into anesthesia. Furthermore, GAPDH is highly conserved meaning that the protein found in microorganisms, such as pathogens, remained relatively unchanged in evolution. Pathogens use GAPDH as a virulence factor, offering a unique challenge in developing anti-microbial agents that target this protein. To the evolutionary biologist, a book on the multi-functionality of GAPDH provides a focal point for a cogent discussion on the very origin of life.




Chemical and Biological Properties of Food Allergens


Book Description

In the U.S. alone, severe food-related allergic reactions account for an estimated 30,000 emergency room visits and 150 deaths per year - unsettling statistics for food product developers and manufacturers who are charged with ensuring food safety and quality throughout the entire farm-to-table production chain. Providing the clear-cut information




Handbook of Wood Chemistry and Wood Composites


Book Description

The degradable nature of high-performance, wood-based materials is an attractive advantage when considering environmental factors such as sustainability, recycling, and energy/resource conservation. The Handbook of Wood Chemistry and Wood Composites provides an excellent guide to the latest concepts and technologies in wood chemistry and bio-based composites. The book analyzes the chemical composition and physical properties of wood cellulose and its response to natural processes of degradation. It describes safe and effective chemical modifications to strengthen wood against biological, chemical, and mechanical degradation without using toxic, leachable, or corrosive chemicals. Expert researchers provide insightful analyses of the types of chemical modifications applied to polymer cell walls in wood, emphasizing the mechanisms of reaction involved and resulting changes in performance properties. These include modifications that increase water repellency, fire retardancy, and resistance to ultraviolet light, heat, moisture, mold, and other biological organisms. The text also explores modifications that increase mechanical strength, such as lumen fill, monomer polymer penetration, and plasticization. The Handbook of Wood Chemistry and Wood Composites concludes with the latest applications, such as adhesives, geotextiles, and sorbents, and future trends in the use of wood-based composites in terms of sustainable agriculture, biodegradability and recycling, and economics. Incorporating over 30 years of teaching experience, the esteemed editor of this handbook is well-attuned to educational demands as well as industry standards and research trends.




Tannins


Book Description

Tannins are one of the polyphenols group found in plants and are mainly studied because of their structural properties and bioactive behavior. Every year new findings concerning their properties and functions are made, and today concerns are mainly focused on how they can be used efficiently in the wood, food, textile, health, and pharmaceutical industries. Thus, the aim of this book is to present the most updated information on the structural properties of tannins, their food sources and variations, biological properties, and health, among other important issues. In addition, the most recent methods used for their isolation, quantifications, and industrial applications will also be covered.




Chemistry and Biology of Hyaluronan


Book Description

It was probably the French chemist Portes, who first reported in 1880 that the mucin in the vitreous body, which he named hyalomucine, behaved differently from other mucoids in cornea and cartilage. Fifty four years later Karl Meyer isolated a new polysaccharide from the vitreous, which he named hyaluronic acid. Today its official name is hyaluronan, and modern-day research on this polysaccharide continues to grow. Expertly written by leading scientists in the field, this book provides readers with a broad, yet detailed review of the chemistry of hyaluronan, and the role it plays in human biology and pathology. Twenty-seven chapters present a sequence leading from the chemistry and biochemistry of hyaluronan, followed by its role in various pathological conditions, to modified hylauronans as potential therapeutic agents and finally to the functional, structural and biological properties of hyaluronidases. Chemistry and Biology of Hyaluronan covers the many interesting facets of this fascinating molecule, and all chapters are intended to reach the wider research community. - Comprehensive look at the chemistry and biology of hyaluronans - Essential to Chemists, Biochemists and Medical researchers - Broad yet detailed review of this rapidly growing research area