Chemistry And Biology Of Ellagitannins: An Underestimated Class Of Bioactive Plant Polyphenols

Chemistry And Biology Of Ellagitannins: An Underestimated Class Of Bioactive Plant Polyphenols

Author: Stephane Quideau

Publisher: World Scientific

Published: 2009-01-05

Total Pages: 395

ISBN-13: 9814471445

DOWNLOAD EBOOK

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.


Chemistry and Biology of Ellagitannins

Chemistry and Biology of Ellagitannins

Author: Stephane Quideau

Publisher: World Scientific

Published: 2009

Total Pages: 395

ISBN-13: 9812797416

DOWNLOAD EBOOK

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.


Dietary Polyphenols

Dietary Polyphenols

Author: Francisco A . Tomás-Barberán

Publisher: John Wiley & Sons

Published: 2020-12-15

Total Pages: 560

ISBN-13: 1119563720

DOWNLOAD EBOOK

Presents recent research on metabolism and the health effects of polyphenols Consumer interest in the health benefits of many phenolic compounds found in plant foods and derivatives has grown considerably in recent years, giving rise to an increased demand for functional foods. Although preclinical and observational studies have promoted the protective properties of polyphenols for a range of chronic diseases, evidence has shown that most dietary polyphenols have little bioavailability. Once ingested, most of them are metabolized by either the intestinal enzymes or by the gut microbiota and then undergo extensive phase-II metabolism reaching significant concentrations of conjugated metabolites. They remain in the systemic circulation and target systemic tissues where trigger biological effects. The polyphenol-derived metabolites produced in humans are dependent upon the composition of the gut microbiota and the subject genetics. Thus all the metabolites do not show the same biological activity in different individuals. To fully understand the health effects of polyphenols, further clinical investigations are required. Dietary Polyphenols describes the latest findings on the polyphenol metabolism and reviews the current evidence on their health effects and that of their bioavailable metabolites. Emphasizing the importance of interindividual variability and the critical role of gut microbiota, this authoritative volume features contributions from recognized experts in the field, exploring specific families of extractable and non-extractable phenolic compounds that exhibit potential health effects. Topics include structural diversity of polyphenols and distribution in foods, bioavailability and bioaccessibility of phenolics, metabolism, and gastrointestinal absorption of various metabolites and their health effects. This comprehensive volume: Discusses the bioavailability, bioaccessibility, pharmacokinetics studies, and microbial metabolism of different groups of phenolic compounds Examines the interaction between polyphenols and gut microbiota Describes analytical methods for identifying and quantifying polyphenols in foods and biological samples Reviews recent epidemiological and clinical intervention studies showing protective effects of polyphenols Dietary Polyphenols: Metabolism and Health Effects is an important resource for scientists working in the area of dietary polyphenols and health effects, microbiota, and their interaction with other nutritional compounds, and for health professionals, nutritionists, dieticians, and clinical researchers with interest in the role of polyphenols in the prevention and treatment of chronic diseases.


Medicinal Foods as Potential Therapies for Type-2 Diabetes and Associated Diseases

Medicinal Foods as Potential Therapies for Type-2 Diabetes and Associated Diseases

Author: Solomon Habtemariam

Publisher: Academic Press

Published: 2019-06-08

Total Pages: 1182

ISBN-13: 0081029233

DOWNLOAD EBOOK

Medicinal Foods as Potential Therapies for Type-2 Diabetes and Associated Diseases: The Chemical and Pharmacological Basis of their Action focuses on active pharmacological principles that modulate diabetes, associated risk factors, complications and the mechanism of action of widely used anti-diabetic herbal plants—rather than just the nutritional composition of certain foods. The book provides up-to-date information on acclaimed antidiabetic super fruits, spices and other food ingredients. Sections cover diabetes and obesity at the global level, the physiological control of carbohydrate and lipid metabolism, the pathophysiology of type-2 diabetes, the chemistry and pharmacology of a variety of spices, and much more. This book will be invaluable for research scientists and students in the medical and pharmaceutical sciences, medicinal chemistry, herbal medicine, drug discovery/development, nutrition science, and for herbal practitioners and those from the nutraceutical and pharm industries. - Provides background knowledge on type-2 diabetes and its pathophysiology and therapeutic targets down to the molecular level - Explores, in detail, the chemistry or secondary metabolites of the indicated foods that potentially modify diabetes and/or associated diseases - Examines the pharmacological findings on medicinal foods, including available clinical trials


Phenolic Compound Biochemistry

Phenolic Compound Biochemistry

Author: Wilfred Vermerris

Publisher: Springer Science & Business Media

Published: 2007-02-20

Total Pages: 284

ISBN-13: 1402051646

DOWNLOAD EBOOK

These are just a few examples that illustrate the chemical diversity and use of phenolic compounds, the topic of ‘Phenolic Compound Biochemistry’. This book is written for researchers, instructors, advanced undergraduate students and beginning graduate students in the life sciences who wish to become more familiar with these and many other intriguing aspects of phenolic compounds. Topics covered include nomenclature, chemical properties, biosynthesis, including an up-to-date overview of the genetics controlling phenolic metabolism, isolation and characterization of phenolic compounds, phenolics used in plant defense, and the impact of phenolics on human health. The book is written in an accessible style, and assumes only basic knowledge of organic chemistry, biochemistry and cell physiology. More than 300 chemical structures and reaction schemes illustrate the text. Wilfred Vermerris is Associate Professor of Agronomy at the University of Florida Genetics Institute in Gainesville, FL. His research focuses on the genetic control of phenolic compounds that impact agro-industrial processing of crop plants. Ralph Nicholson is Professor of Botany and Plant Pathology at Purdue University in West Lafayette, IN. He is an expert on phenolic compounds involved in the plant’s defense against pathogenic fungi and bacteria.


Tannins

Tannins

Author: Alfredo Aires

Publisher: BoD – Books on Demand

Published: 2020-01-08

Total Pages: 150

ISBN-13: 1789847966

DOWNLOAD EBOOK

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.


Recent Advances in Natural Products Analysis

Recent Advances in Natural Products Analysis

Author: Seyed Mohammad Nabavi

Publisher: Elsevier

Published: 2020-03-07

Total Pages: 880

ISBN-13: 0128175192

DOWNLOAD EBOOK

Recent Advances in Natural Products Analysis is a thorough guide to the latest analytical methods used for identifying and studying bioactive phytochemicals and other natural products. Chemical compounds, such as flavonoids, alkaloids, carotenoids and saponins are examined, highlighting the many techniques for studying their properties. Each chapter is devoted to a compound category, beginning with the underlying chemical properties of the main components followed by techniques of extraction, purification and fractionation, and then techniques of identification and quantification. Biological activities, possible interactions, levels found in plants, the effects of processing, and current and potential industrial applications are also included. Focuses on the latest analytical techniques used for studying phytochemical and other biological compounds Authored and edited by the top worldwide experts in their field Discusses the current and potential applications and predicts future trends of each compound group


Biomimetic Organic Synthesis

Biomimetic Organic Synthesis

Author: Erwan Poupon

Publisher: John Wiley & Sons

Published: 2011-05-09

Total Pages: 1024

ISBN-13: 3527634762

DOWNLOAD EBOOK

In this exciting 2 volume set, the approach and methodology of bio-inspired synthesis of complex natural products is laid out, backed by abundant practical examples from the authors' own work as well as from the published literature. Volume 1 describes the biomimetic synthesis of alkaloids. Volume 2 covers terpenes, polyketides, and polyphenols. A discussion of the current challenges and frontiers in biomimetic synthesis concludes this comprehensive handbook. Key features: Biomimetic Strategies have become an every-day tool not only for chemists but also for biologists. The synthetic applications are overwhelming, making this comprehensive 2 volume work a must-have for everyone working in the field. Unifying both synthetic and biosynthetic aspects, this book covers everything from organocatalysis and natural product synthesis to synthetic biology and even green chemistry.


Prevention of Cardiovascular Disease

Prevention of Cardiovascular Disease

Author: World Health Organization

Publisher: WHO

Published: 2007-01-01

Total Pages: 86

ISBN-13: 9789241547178

DOWNLOAD EBOOK

This publication provides guidance on reducing disability and premature deaths from coronary heart disease, cerebrovascular disease and peripheral vascular disease in people at high risk who have not yet experienced a cardiovascular event. People with established cardiovascular disease are at very high risk of recurrent events and are not the subject of these guidelines. They have been addressed in previous WHO guidelines. The risk prediction charts that accompany these guidelines allow treatment to be targeted according to simple predictions of absolute cardiovascular risk. Recommendations are made for management of major cardiovascular risk factors through changes in lifestyle and prophylactic drug therapies. The guidelines provide a framework for the development of national guidance on prevention of cardiovascular disease that takes into account the particular political economic social and medical circumstances.


Pomegranates

Pomegranates

Author: David Heber

Publisher: CRC Press

Published: 2006-07-07

Total Pages: 263

ISBN-13: 1420009869

DOWNLOAD EBOOK

While one may not find ancient studies that substantiate the pomegranate's curative and preventive qualities, the exalted status of this fruit goes back as far as the history of agriculture itself. Allusions to the pomegranate are readily found in the oldest cultures of the Indus Valley, ancient China, and classical Greece, as well as in the Old Te