Download or read book Structural Elucidation of New Polyphenolics Part I Glycosidic and non Glycosidic written by Dr. Rekha Kashyap and published by Blue Rose Publishers. This book was released on 2022-06-01 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about Flavonoid plant pigments. They are polyphenolics having Benzo -g-pyrone (chromone ) moiety. They are found in berries, red cabbage, onion, Parsley, Kale, etc. having antioxidant, antibacterial, antiviral & anti-inflammatory properties. A diet rich in flavonoids leads to a reduced risk of several different cancers. The book describes the results of structural elucidations of Chemical constituents of some medicinal and non-Medicinal plants. The chemical constituents isolated from the plant Kochia Indica have been studied in detail in Chapter - I. A chemical investigation of Kochia Indica led to the isolation of five Glycosidic polyphenolic pigments which have been examined for their color reactions and spectral data for their structural elucidations. This chapter also describes the Identifications of Flavonoid –O- Glycosides by UV, PMR, and CMR analysis and it also analyses the nature of Glycoside: its position of Glycosylation, Identification of nature of Saccharide, Glycosidic ring size, Anomeric configuration & Inter Glycosidic Linkage. Chapter –II contains revised new structures of Scutellaris pigments –A & -B isolated from the plant Scutellaria rivularis. This chapter also contains the methods of Spectroscopic studies of Non-Glycosidic Flavonoids (UV, PMR, CMR, and mass ). This book is useful for early researchers in Flavonoid Chemistry.
Download or read book Structural Elucidation of New Polyphenolics written by Dr. Rekha Kahsyap and published by Blue Rose Publishers. This book was released on 2022-08-30 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about Flavonoid plant pigments.They are polyphenolics having Benzo -g-pyrone (chromone) moiety.They are found in berries , red cabbage ,onion, Parseley, Kale, etc. having antioxidant,antibacterial, anti viral & anti inflammatory properties . A diet rich in flavonoids leads to a reduced risk of several different cancers. The book describes the results of structural elucidation of some new flavonoid pigments which are non glycosidic in nature . Chapter -I describes the two isomeric pigments Lepisatim -A and -B extracted from the plant Lepidium Sativum . The constitution of Lepisatim -A is finally proved by synthesis and then by spectral data . Chapter -II deals with the revised new structure proposed to the pigment Rivularin which is extracted from the plant Scutellaria rivularis .Rivularin is finally proved by colour reactions ,spectral studies & finally by synthesis. This book is useful for early researchers in Flavonoid Chemistry.
Download or read book Practical Polyphenolics written by Edwin Haslam and published by Cambridge University Press. This book was released on 1998-03-28 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the scientific basis for the action of plant polyphenols in a wide range of phenomena.
Download or read book Recent Advances in Polyphenol Research Volume 2 written by Celestino Santos-Buelga and published by John Wiley & Sons. This book was released on 2011-01-04 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Advances in Polyphenol Research Volume 2 Edited by Santos-Buelga, Escribano-Bailon and Lattanzio Plant phenolics are secondary metabolites that constitute one of the most common and widespread groups of substances in plants. Polyphenols have a large and diverse array of beneficial effects on both plants and animals. For example they are famous as antioxidants, hormones, constituents of essential oils and natural neurotransmitters. Sponsored by Groupe Polyphenols, this publication, which is the second volume in this ground-breaking series, is edited by Celestino Santos-Buelga, Maria Teresa Escribano-Bailon, and Vincenzo Lattanzio, who have drawn together an impressive list of internationally respected authors, each providing cutting edge chapters covering some of the major topics of recent research and interest. Information included in this important new addition to the series include the following areas: • Flavonoid chemistry of the leguminosae • Chemistry and biological activity of ellagitannins • Chemistry and function of anthocyanins in plants • An update of chemical pathways leading to new phenolic pigments during wine ageing • Metabolic engineering of the flavonoid pathway • The translation of chemical properties of polyphenols into biological activity with impacts in human health • Plant phenolic compounds controlling leaf movement • Biological activity of phenolics in plants Chemists, biochemists, plant scientists, pharmacognosists and pharmacologists, food scientists and nutritionists will all find this book an invaluable resource. Libraries in all universities and research establishments where these subjects are studied and taught should have copies on their shelves.
Download or read book Recent Advances in Polyphenol Research Volume 4 written by Annalisa Romani and published by John Wiley & Sons. This book was released on 2014-10-20 with total page 465 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 the scholarly society Groupe Polyphénols, this publication, which is the fourth volume in this highly regarded Recent Advances in Polyphenol Research series, is edited by Annalisa Romani, Vincenzo Lattanzio, and Stéphane Quideau. They have once again, like their predecessors, put together an impressive collection of cutting-edge chapters written by expert scientists, internationally respected in their respective field of polyphenol sciences. This Volume 4 highlights some of the latest information and opinion on the following major research topics about polyphenols: Biosynthesis and genetic manipulation Ecological role of polyphenols in plant defense Actions of polyphenols in human health protection Physical organic chemistry and organic synthesis 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 Recent Advances in Polyphenol Research written by Fouad Daayf and published by John Wiley & Sons. This book was released on 2009-01-21 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyphenols are the second most abundant class of substances in nature, and include tannins and flavonoids, many of which have extremely important antioxidant properties which have now been shown to have a key role in the prevention of cancer in humans. This important book covers polyphenol chemistry, biosynthesis and genetic manipulation, ecology and plant physiology, food and nutritional aspects and the effects of polyphenols on health. Included within the contents are cutting edge chapters on biotic and abiotic stress in plants, safety and toxicity in foods, functionality and nutraceutical benefits in nutrition, and aspects of pharmaceutical and cosmetic discovery and development. Sponsored by Groupe Polyphenols, this landmark book has been edited by Professor Fouad Daayf and Professor Vincenzo Lattanzio, who have drawn together an impressive list of internationally respected contributing authors, each providing a comprehensive review of the current situation regarding each important subject covered. Recent Advances in Polyphenol Research is an important publication which will be of great use to chemists, biochemists, plant scientists, pharmacognosists and pharmacologists, food scientists and nutritionists. Libraries in all universities and research establishments where these subjects are studied and taught should have copies of this book on their shelves.
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 Dietary Polyphenols written by Francisco A . Tomás-Barberán and published by John Wiley & Sons. This book was released on 2020-10-29 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Polyphenols and Health written by Neville Vassallo and published by Nova Publishers. This book was released on 2008 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Polyphenols Properties Recovery and Applications written by Charis M. Galanakis and published by Woodhead Publishing. This book was released on 2018-01-11 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyphenols: Properties, Recovery, and Applications covers polyphenol properties, health effects and new trends in recovery procedures and applications. Beginning with coverage of the metabolism and health effects of polyphenols, the book then addresses recovery, analysis, processing issues and industrial applications. The book not only connects the properties and health effects of polyphenols with recovery, processing and encapsulation issues, but also explores industrial applications that are affected by these aspects, including both current applications and those under development. Covers the properties and health effects of polyphenols, along with trends in recovery procedures and applications Addresses recovery, analysis and processing issues Concludes with coverage of the industrial applications of polyphenols
Download or read book Flavonoids written by Oyvind M. Andersen and published by CRC Press. This book was released on 2005-12-09 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in the flavonoid field have been nothing short of spectacular over the last 20 years. While the medical field has noticed flavonoids for their potential antioxidant, anticancer and cardioprotectant characteristics, growers and processors in plant sciences have utilized flavonoid biosynthesis and the genetic manipulation of the flavonoid pa
Download or read book Recent Advances in Polyphenol Research written by Heidi Halbwirth and published by John Wiley & Sons. This book was released on 2019-01-04 with total page 456 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 are crucial constituents of a large and diverse range of biological functions and processes, and provide many benefits to both plants and humans. Many polyphenols, from their structurally simplest representatives to their oligo/polymeric versions, are notably known as phytoestrogens, plant pigments, potent antioxidants, and protein interacting agents. This sixth volume of the highly regarded Recent Advances in Polyphenol Research series is edited by Heidi Halbwirth, Karl Stich, Véronique Cheynier and Stéphane Quideau, and is a continuance of the series’ tradition of compiling a cornucopia of cutting-edge chapters, written by some of the leading experts in their respective fields of polyphenol sciences. Highlighted herein are some of the most recent and pertinent developments in polyphenol research, covering such major areas as: Chemistry and physicochemistry Biosynthesis, genetics & metabolic engineering Roles in plants and ecosystems Food, nutrition & health Applied polyphenols This book is a distillation of the most current information, and as such, will surely prove an invaluable source for chemists, biochemists, plant scientists, pharmacognosists and pharmacologists, biologists, ecologists, food scientists and nutritionists.
Download or read book Methods in Plant Biochemistry Volume 1 written by P. M. Dey and published by Academic Press. This book was released on 2012-12-02 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods in Plant Biochemistry, Volume 1: Plant Phenolics reviews current knowledge about techniques used in the analysis of the biochemistry of plant polyphenols and their importance in the agricultural and food industries. It looks at the application of these techniques in the fractionation of cellular constituents, isolation of enzymes, electrophoretic separation of nucleic acids and proteins, and chromatographic identification of the intermediates and products of cellular metabolism. Organized into 15 chapters, this book opens with an overview of the general procedures and measurement of total phenolics, from detecting phenolic substances in crude plant extracts to determining which classes they belong to and the quantitative estimation of total phenol. The reader is introduced to the chemistry, structural variation, function, and distribution of each class of plant phenolics and, in a few cases where this is practicable, detailed listings of known derivatives are given. Most chapters focus on chromatographic separations and high performance liquid chromatography (HPLC), along with thin layer and paper Rf values with HPLC retention times and NMR spectroscopy. The book also outlines the procedures for the extraction, isolation, separation, and characterization of different classes of phenolic compounds, ranging from phenols and phenolic acids to phenylpropanoids, lignins, stilbenes and phenanthrenes, flavones and flavonols, chalcones and aurones, flavanoids, anthocyanins, biflavanoids, tannins, isoflavanoids, quinones, xanthones, and lichen substances. The book is a valuable resource for students, biochemists, and researchers in the plant sciences.
Download or read book Green Tea Polyphenols written by Lekh R. Juneja and published by CRC Press. This book was released on 2013-05-21 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a wealth of published research on the health-promoting effects of green tea and its various components including polyphenols. Green Tea Polyphenols: Nutraceuticals of Modern Life presents a collection of global findings on the numerous health benefits of green tea polyphenols, confirming their position as healthy functional ingredients. With chapters contributed by experts in the field of green tea science and the inclusion of extensive references, this book provides an authoritative volume that can be used to guide researchers, scientists, and regulatory bodies. Each chapter previews a specific theme and highlights recent research and development conducted in the field. The book begins with the history, processing, and features of green tea. It then describes the chemical composition and biochemical and physicochemical characteristics, followed by a discussion of the properties of green tea polyphenols, including metabolism, bioavailability, and safety. The subsequent chapters deal with the numerous health benefits associated with consumption of green tea polyphenols. These include benefits related to cancer risk and prevention, cardiovascular disease, protection of internal organs, diabetes and weight management, bone and muscle health, allergies, oral care, inflammation, and gut health. The book addresses the nutrigenomics and proteomics of poyphenols. It also examines food and nonfood applications of green tea polyphenols, such as extracts, supplements, and skin and hair cosmetic products, demonstrating both therapeutic and functional health benefits. This book brings together a wide array of data on green tea polyphenols, providing a greater understanding of them and insight into their effects on human health, and their applications and commercial potential.
Download or read book Recent Advances in Polyphenol Research Volume 8 written by Juha-Pekka Salminen and published by John Wiley & Sons. This book was released on 2023-01-31 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Studies in Natural Products Chemistry written by Atta-ur Rahman and published by Elsevier. This book was released on 2019-11-14 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies in Natural Products Chemistry, Volume 63, covers the rapid developments in spectroscopic techniques and accompanying advances in high-throughput screening techniques that have made it possible to rapidly isolate and determine the structures and biological activity of natural products. The book highlights these new and exciting opportunities in the field of new drug development to the pharmaceutical industry. As natural products in the plant and animal kingdom offer a huge diversity of chemical structures that are the result of biosynthetic processes that have been modulated over the millennia through genetic effects, this book is an ideal resource on the material presented. Focuses on the chemistry of bioactive natural products Contains contributions by leading authorities in the field Presents sources of new pharmacophores
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.
