Practical Polyphenolics

This book describes the scientific basis for the action of plant polyphenols in a wide range of phenomena.

Natural Polyphenols from Wood: Tannin and Lignin – An Industrial Perspective is a detailed guide to the sourcing and processing of tannin and lignin for valuable advanced applications across areas such as fuels, chemicals, drugs, and food. Drawing on the latest academic research and patent literature, this book provides strong practical understanding of the use of these valuable materials in novel industrial applications. This book introduces natural polyphenols from wood and the fundamental aspects of carbon management within the tree. In-depth presentation of extraction and characterization methods is followed by an extensive coverage of practical and industrial applications of wood polyphenols. This is an essential resource for researchers and advanced students working with lignin or tannin, and across biopolymer science, biomass, wood chemistry, paper, wood adhesives, polymer materials, renewable resources, and biotechnology. It also supports industrial R&D and scientists working with wood polyphenols or bio-based polymers. This book re-evaluates wood polyphenols from an industrial perspective, revealing the latest techniques and drawing on patent literature. It addresses fundamental issues of wood polyphenols, such as carbon cycle, wood fractionation, structure, and properties. It offers a comprehensive review of practical applications, including lignin depolymerization, wood reconstruction, fuels, chemicals, drugs, and food.

Plant polyphenols are specialized metabolites that constitute one of the most common and widespread groups of natural products. They are essential plant components for adaptation to the environment and possess a large and diverse range of biological functions that provide many benefits to both plants and humans. Polyphenols, from their structurally simplest forms to their oligo/polymeric versions (i.e. tannins and lignins), are phytoestrogens, plant pigments, antioxidants, and structural components of the plant cell wall. The interactions between tannins and proteins are involved in plant defense against predation, cause astringency in foods and beverages, and affect the nutritional and health properties of human and animal food plants. This eighth volume of the highly regarded Recent Advances in Polyphenol Research series is edited by Juha-Pekka Salminen, Kristiina Wähälä, Victor de Freitas, and Stéphane Quideau, and brings together chapters written by some of the leading experts working in the polyphenol sciences today. Topics covered include: Structure, reactivity and synthesis Bioactivity and bioavailability Metabolomics, targeted analysis and big data Quality control & standardization Biogenesis and functions in plants and ecosystems Biomaterials & applied sciences Distilling the most recent and illuminating data available, this new volume is an invaluable resource for chemists, biochemists, plant scientists, pharmacognosists and pharmacologists, biologists, ecologists, food scientists and nutritionists.

In this book, the effect of nutritional habits and wine consumption on ageing and the main degenerative diseases (cardiovascular, cancer, Alzheimer's, etc.) are considered through the most relevant epidemiological and pharmacological studies. Newly isolated wine polyphenols and tannins are presented and their structures and in vitro biological properties are discussed that could strongly support the hypotheses that those molecules could insure beneficial health effects. This book will be of particular interest to people involved in problems of public health, but also in the wine industry or in wine making, as well as to physicians who are concerned by the difficult question of ageing and its related chronic diseases.

This book touches upon the subject of diet and health interest to a wide audience. It is a very topical subject and one which is at the forefront of scientific research, not only in universities but also in industry. The exponential increase in the number of scientific reports is a strong indicator of the need for this book that provides an exciting, up-to-date guide to the mechanisms and themes that underlie the applications of polyphenols in health.

This volume summarizes current research on the influence of plant polyphenols on human health, promoting collaboration between chemists and biologists to improve our understanding of their biological significance, and expanding the possibilities for their use.

This book is the first of its kind that focuses on the chemistry and biology of ellagitannins, a special class of naturally occurring polyphenols which have so far not received the attention they deserve. These polyphenolic substances are found in many plants, including numerous food sources. They not only exhibit unique structural features that fascinate most chemists who are aware of their existence, but also express remarkable biological activities that have yet to attract the interest of the pharmaceutical industry. This is surprising because ellagitannins have been identified as active principles in traditional Chinese medicines.The principal aim of this book is to set the record straight. Most, if not all, worldwide experts in each aspect of the chemistry and biology of this underestimated class of natural products have contributed to this book. It covers topics such as their structural determination and natural occurrence; the most up-to-date knowledge of their biosynthesis; the current state of the art of their total chemical synthesis; their main physicochemical properties and principal biological activities; their presence in food and beverages; and their related health effects. All together, nine chapters compose this book whose content is placed into historical perspective in a yet inspiring preface written by one of the pioneers in modern polyphenol research, Professor Edwin Haslam. This book will be useful not only to scientists involved in natural product research, but also to lecturers and their students as a source of key references and/or a textbook.

Polyphenols in Plants assists plant scientists and dietary supplement producers in assessing polyphenol content and factors affecting their composition. It also aids in selecting sources and regulating environmental conditions affecting yield for more consistent and function dietary supplements. Polyphenols play key roles in the growth, regulation and structure of plants and vary widely within different plants. Stress, growth conditions and plant species modify polyphenol structure and content. This book describes techniques to identify, isolate and characterize polyphenols, taking mammalian toxicology into account as well. Defines conditions of growth affecting the polyphenol levels Describes assay and instrumentation techniques critical to identifying and defining polyphenols, critical to researchers and business development Documents how some polyphenols are dangerous to consume, important to dietary supplement industry, government regulators and lay public users

The text covers research on food factors of a variety of physiological significance. The actual goal is to establish a role of food factors in disease prevention and health promotion from the scientific base. The two volumes present research data and reviews by numerous experts and should be of special interest and relevance to all who are concerned with food factors in disease prevention and health promotion. Topics covered include: cancer prevention and those in antioxidants as well as vitamin E, minerals and trace elements, peptide and amino acids, flavones and flavonols, isoflavones, dietary fibers, oligo and polysaccharides, lipids, catechins, carotenoids, polyphenols, terpenoids, and sulfur-containing compounds.

Polyphenolic compounds are part of a division of secondary metabolites with high antioxidant capacity, found naturally in most edible and inedible plants. These compounds are responsible for pigmentation and plants defense of pathogens agents. Its molecular structure includes phenolic hydroxyl groups and aromatic rings. Polyphenols are increasingly studied because of the benefits to human health, introducing the ability to eliminate free radicals generated by oxidation, reducing risk of cancer, anti-aging, anti-diabetic, among others. This book provides new research on food sources of polyphenolic compounds, and their biochemistry and health benefits.