Download or read book Chemistry and Significance of Condensed Tannins written by Richard W. Hemingway and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was developed from the proceedings of the first North American Tannin Conference held in Port. Angeles, Washington, August 1988. The objective of the conference was to bring together people with a common interest in condensed tannins and to promote interdisciplinary interactions that will lead to a better understanding of these important substances. Anot. her objective was the publicat. ion of this book because there has not been a monograph devoted to the chemistry and significance of tannins for several decades. The book is organized into sections dealing with the biosynthesis, structure, re actions, complexation with other biopolymers, biological significance, and use of tannins as specialty chemicals. The authors made a special attempt to focus on what we don't know as well as to provide a summary of what we do know in an effort to assist in planning future research. Our thanks go to the authors who so kindly contributed chapters and so pa tiently responded to our requests. We also thank Rylee Geboski and the Conference Assist. ance Staff, College of Forestry, Oregon State University, for their assistance in planning and conducting t. he conference, and Julia Wilson, Debbie Wolfe, Helen Coletka, and Nancy Greene of the Southern Forest Experiment Station, Pineville, Louisiana, who typed the chapt. ers. Linda Chalker-Scott was especially helpful in assisting us wit. h editing. Dick Hemingway is indebted t. o the staff of the Alexandria Forest.
Download or read book Chemistry and Significance of Condensed Tannins written by Richard W. Hemingway and published by . This book was released on 2014-01-15 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Polyphenols written by Richard W. Hemingway and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1027 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was developed from the proceedings of the 2nd North American Tan nin Conference held in Houghton, Michigan, June, 1991. The objective of this con ference was to bring together people with a common interest in plant polyphenols and to promote interdisciplinary interactions that will lead to a bet ter understand ing of the importance of these substances. Another objective of this conference was to extend the 'tannin family' by making special efforts to encourage participation by scientists outside the United States, obtain more coverage of the hydrolyzable tannins, and further broaden the scope of coverage from the initial concentration on forestry and forest products. Com parison of the contents of this book with 'Chemistry and Significance of Condensed Tannins' that resulted from the proceedings of the 1st North American Tannin Conference shows the degree that these objectives were met. In developing the second conference, care was taken to assure that this book extends rather than duplicates the coverage of the first conference. Therefore, the two books should be taken together to obtain an up to date coverage of the broad area of chemistry and significance of plant polyphenols. Our thanks go to the authors who so kindly contributed chapters and so pa tiently responded to our requests. We thank the Conference Assistance Staff of Michigan Technological University for their help in planning and conducting the conference.
Download or read book Chemistry of Vegetable Tannins written by Edwin Haslam and published by . This book was released on 1966 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tannins written by Alfredo Aires and published by BoD – Books on Demand. This book was released on 2020-01-08 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Plant Polyphenols written by Edwin Haslam and published by CUP Archive. This book was released on 1989-06-29 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Polyphenols written by Richard W. Hemingway and published by Springer. This book was released on 1992-09-30 with total page 1053 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was developed from the proceedings of the 2nd North American Tan nin Conference held in Houghton, Michigan, June, 1991. The objective of this con ference was to bring together people with a common interest in plant polyphenols and to promote interdisciplinary interactions that will lead to a bet ter understand ing of the importance of these substances. Another objective of this conference was to extend the 'tannin family' by making special efforts to encourage participation by scientists outside the United States, obtain more coverage of the hydrolyzable tannins, and further broaden the scope of coverage from the initial concentration on forestry and forest products. Com parison of the contents of this book with 'Chemistry and Significance of Condensed Tannins' that resulted from the proceedings of the 1st North American Tannin Conference shows the degree that these objectives were met. In developing the second conference, care was taken to assure that this book extends rather than duplicates the coverage of the first conference. Therefore, the two books should be taken together to obtain an up to date coverage of the broad area of chemistry and significance of plant polyphenols. Our thanks go to the authors who so kindly contributed chapters and so pa tiently responded to our requests. We thank the Conference Assistance Staff of Michigan Technological University for their help in planning and conducting the conference.
Download or read book Dietary Tannins written by D. K. Salunkhe and published by CRC Press. This book was released on 1989-11-30 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This concisely written book presents information on types of plant phenolics. The sole focus of this volume is on dietary tannins. It reviews the fact that tannins interact with dietary proteins, carbohydrates, minerals, vitamins, digestive enzymes, and lower nutrient availability. This work reveals that in certain parts of the world, tannins also have been reported as carcinogenic. This literature comprehensively reviews chemistry and plant biochemistry, and methods of extraction. It also explains the harmful and toxic effects and remedies to alleviate dietary tannins. This useful resource is a must for all food scientists, nutritionists, biochemists, and animal scientists throughout the world.
Download or read book Natural Products of Woody Plants written by John W. Rowe and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1275 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood as found in trees and bushes was of primary importance to ancient humans in their struggle to control their environment. Subsequent evolution through the Bronze and Iron Ages up to our present technologically advanced society has hardly diminished the importance of wood. Today, its role as a source of paper products, furniture, building materials, and fuel is still of major significance. Wood consists of a mixture of polymers, often referred to as lignocellulose. The cellulose micro fibrils consist of an immensely strong, linear polymer of glucose. They are associated with smaller, more complex polymers composed of various sugars called hemicelluloses. These polysaccharides are embedded in an amorphous phenylpropane polymer, lignin, creating a remarkably strong com posite structure, the lignocellulosic cell wall. Wood also contains materials that are largely extraneous to this lignocellulosic cell wall. These extracellular substances can range from less than 1070 to about 35% of the dry weight of the wood, but the usual range is 2% -10%. Among these components are the mineral constituents, salts of calcium, potassium, sodium, and other metals, particularly those present in the soil where the tree is growing. Some of the extraneous components of wood are too insoluble to be ex tracted by inert solvents and remain to give extractive-free wood its color; very often these are high-molecular-weight polyphenolics.
Download or read book Phenolic Compounds written by Marcos Soto-Hernández and published by BoD – Books on Demand. This book was released on 2017-03-08 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenolic compounds comprise a broad class of natural products formed mainly by plants, but also microorganisms and marine organisms that have the capacity to form them. Nowadays the interest in these compounds has increased mainly due to their diverse chemical structure and wide biological activity valuable in the prevention of some chronic or degenerative diseases. The functional foods are a rich source of these phytochemicals, and this is the starting point for this book, which shows the state of the art of the phenolic compounds and their biological activity. This book integrates eleven chapters that show the state of the art of diverse biological activity of the phenolic compounds, present in some crops or fruits.
Download or read book Tannins written by Cheryl Anne Combs and published by Nova Science Publishers. This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tannins constitute a heterogeneous group of polyphenolic compounds, present in a considerable number of vegetable foods. The term tannin is derived from the properties of these compounds to interact and precipitate macromolecules, such as proteins, make them able to tan animal leather. Subsequently a general definition for tannins emerged, referring them as high molecular weight polyphenols that precipitate protein from solution. The first chapter of this book begins with a discussion on the adsorbent biopolymers from tannin extracts for water treatment. The second chapter presents the influences of sensory and psychosocial factors on the intake of tannin-rich foods and beverages. Chapter three investigates condensed tannins derived from grapes and their antioxidant and antimicrobial activity. Chapter four provides a review of the latest research in the extraction of tannins from grapes and how tannin structure can influence wine astringency. The tannin chemistry diversity and its occurrence in ruminant diets, as well as its beneficial and adverse effects on ruminants will be briefly reviewed in chapter five, and aspects related to oral cavity physiology, saliva production/composition and postingestive effects will be also be referred. The final chapter evaluates milk composition of crossbred dairy goats fed Tifton 85 grass replaced by flemingia.
Download or read book Chemistry And Biology Of Ellagitannins An Underestimated Class Of Bioactive Plant Polyphenols written by Stephane Quideau and published by World Scientific. This book was released on 2009-01-05 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Plant Secondary Metabolites written by Alan Crozier and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant secondary metabolites have been a fertile area of chemical investigation for many years, driving the development of both analytical chemistry and of new synthetic reactions and methodologies. The subject is multi-disciplinary with chemists, biochemists and plant scientists all contributing to our current understanding. In recent years there has been an upsurge in interest from other disciplines, related to the realisation that secondary metabolites are dietary components that may have a considerable impact on human health, and to the development of gene technology that permits modulation of the contents of desirable and undesirable components. Plant Secondary Metabolites: Occurrence, Structure and Role in the Human Diet addresses this wider interest by covering the main groups of natural products from a chemical and biosynthetic perspective with illustrations of how genetic engineering can be applied to manipulate levels of secondary metabolites of economic value as well as those of potential importance in diet and health. These descriptive chapters are augmented by chapters showing where these products are found in the diet, how they are metabolised and reviewing the evidence for their beneficial bioactivity.
Download or read book Special Issue Dedicated to Late Professor Takuo Okuda written by Hideyuki Ito and published by MDPI. This book was released on 2019-04-30 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antioxidative polyphenols represented by tannins and flavonoids are rich in numerous food sources and traditional natural medicines and currently attracting increased attention in health care and food industries because of their multiple biological activities that are favorable to human health. Commemorating the outstanding achievements on tannins by Dr. Takuo Okuda on the occasion of his passing away in December 2016, his colleagues, friends, and worldwide experts of polyphenol research have contributed 18 papers on their recent study to the Special Issue of Molecules. This book is its reprinted form. This covers reviews of structural features, historical usages, and biological activities of unique class of ellagitannins and condensed tannins, and original articles on the most up-to-date findings on the anticancer effect of green tea catechins, the antivirus effect of tannins comparing with the clinically used drugs, the analytical method of ellagitannins using quantitative NMR, the chemical structures of Hydrangea-blue complex (pigment) and condensed tannins in Ephedra sinica and purple prairie clover, and the relationship of condensed tannins in legumes and grape-marc with methane production in the in vitro ruminant system, and others. This book will be useful to natural product chemists and also to researchers in pharmaceutical and/or food industry.
Download or read book Recent Advances in Polyphenol Research Volume 3 written by Véronique Cheynier and published by John Wiley & Sons. This book was released on 2012-02-21 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant polyphenols are secondary metabolites that constitute one of the most common and widespread groups of natural products. They express a large and diverse panel of biological activities including beneficial effects on both plants and humans. Many polyphenols, from their structurally simplest representatives to their oligo/polymeric versions (also referred to as vegetable tannins) are notably known as phytoestrogens, plant pigments, potent antioxidants, and protein interacting agents. Sponsored by Groupe Polyphénols, this publication, which is the third volume in this highly regarded Recent Advances in Polyphenol Research series, is edited by Véronique Cheynier, Pascale Sarni-Manchado, and Stéphane Quideau (the current President of Groupe Polyphénols). Like their predecessors, they have once again put together an impressive collection of cutting-edge chapters written by expert scientists internationally respected in their respective field of polyphenol sciences. This Volume 3 provides the latest information and opinion on the following major research topics about polyphenols: Organic chemistry and physical chemistry Biosynthesis, genetics and metabolic engineering The role of polyphenols in plants and ecosystems Health and nutrition Analysis and metabolomics Chemists, biochemists, plant scientists, pharmacognosists and pharmacologists, biologists, ecologists, food scientists and nutritionists will all find this book an invaluable resource. Libraries in all universities and research institutions where these disciplines are studied and taught should have copies on their bookshelves.
Download or read book Plant Polyphenols 2 written by Georg G. Gross and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 911 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Forages Volume 2 written by Kenneth J. Moore and published by John Wiley & Sons. This book was released on 2020-05-29 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forages: The Science of Grassland Agriculture, 7th Edition, Volume II will extensively evaluate the current knowledge and information on forage agriculture. Chapters written by leading researchers and authorities in grassland agriculture are aggregated under section themes, each one representing a major topic within grassland science and agriculture. This 7th edition will include two new additional chapters covering all aspects of forage physiology in three separate chapters, instead of one in previous editions. Chapters will be updated throughout to include new information that has developed since the last edition. This new edition of the classic reference serves as a comprehensive supplement to An Introduction to Grassland Agriculture, Volume I.
