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 Index Medicus written by and published by . This book was released on 2001-08 with total page 2156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Download or read book Bioactive Polysaccharides written by Shaoping Nie and published by Academic Press. This book was released on 2017-10-19 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioactive Polysaccharides offers a comprehensive review of the structures and bioactivities of bioactive polysaccharides isolated from traditional herbs, fungi, and seaweeds. It describes and discusses specific topics based on the authors’ rich experience, including extraction technologies, practical techniques required for purification and fractionation, strategies and skills for elucidating the fine structures, in-vitro and in-vivo protocols, and methodologies for evaluating the specific bioactivities, including immune-modulating activities, anti-cancer activities, anti-oxidant activities, and others. This unique book also discusses partial structure-functionality (bioactivities) relationships based on conformational studies. This comprehensive work can be used as a handbook to explore potential applications in foods, pharmaceuticals, and nutraceutical areas for commercial interests. Serves as a comprehensive review on extraction technologies, and as a practical guide for the purification and fractionation of bioactive polysaccharides Brings step-by-step strategies for elucidating the fine structures and molecular characterizations of bioactive polysaccharides Includes detailed experimental design and methodologies for investigation bioactivities using both in-vitro and in-vivo protocols Clarifies how to extract, purify, and fractionate bioactive polysaccharides, also exploring health benefits Useful as a guide to explore the commercial potentials of bioactive polysaccharides as pharmaceuticals, medicine, and functional foods
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 2014-08-01 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 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 The Science of Flavonoids written by Erich Grotewold and published by Springer Science & Business Media. This book was released on 2008 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the only book of its kind to provide an overview of the science of flavonoids in plants.
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1972 with total page 1360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aromatic and Medicinal Plants written by Hany El-Shemy and published by BoD – Books on Demand. This book was released on 2017-03-15 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers interesting research topics and the use of natural resources for medical treatments in some severe diseases. The most important message is to have native foods which contain high amount of active compounds that can be used as a medicinal plant. Most pharmaceutical drugs were discovered from plants, and still ongoing research will have to predict such new active compounds as anti-diseases. I do believe this book will add significant knowledge to medical societies as well as can be used for postgraduate students.
Download or read book Biochemistry of Plant Phenolics written by Tony Swain and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Classics in Spectroscopy written by Stefan Berger and published by John Wiley & Sons. This book was released on 2009-04-13 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytik von Naturstoffen, die jeder kennt: Die Autoren dieses Bandes beschränken sich nicht auf die nüchterne Abhandlung von Daten und Verfahren, sondern erzählen die wahrhaft inspirierenden Geschichten jedes ihrer Moleküle. Dabei ist der rein methodische Teil so ausführlich und exakt beschrieben, dass der Band hervorragend für Lehre und Studium geeignet ist. Übungsaufgaben mit Lösungen und das attraktive Layout machen das Buch zu einem Muss für jeden Organiker und Spektroskopiker und die, die es werden wollen.
Download or read book Synthesis and Characterization of Glycosides written by Marco Brito-Arias and published by Springer Nature. This book was released on 2022-04-22 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third edition is a comprehensive and extended study about the best known approaches for preparing the main types of glycosides, covering the classic and more recent glycosylation reactions used for preparing simple and challenging glycosides currently used as potent antiviral and antineoplastic drugs, or fluorogenic substrates used for enzymatic detection in cell biology. Besides, this new edition provides more examples of the glycosidic methodologies followed for preparing complex glycoconjugates such as glycoproteins and glycosphingolipids and gangliosides used as adjuvants or as synthetic vaccines candidates. Also, additional mechanistic evidence is presented for better understanding of the glycosylation reaction, trying to identify the variables mainly depending on protecting and leaving groups, as well as catalyst and reaction condition which altogether directs the anomeric stereo control. A chapter on the glycoside hydrolysis is included in view of the increasing interest in the use of biomass as a natural and renewable source for obtaining important intermediates or products used in food or valuable materials. The author includes information in the characterization of glycosides section with the aim of giving additional tools for the structural assignment through NMR, X-Ray and mass spectra techniques.
Download or read book Polyphenols in Human Health and Disease written by Ronald Ross Watson and published by Academic Press. This book was released on 2018-08-06 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyphenols: Mechanisms of Action in Human Health and Disease, Second Edition describes the mechanisms of polyphenol antioxidant activities and their use in disease prevention. Chapters highlight the anti-inflammatory activity of polyphenols on key dendritic cells, how they modulate and suppress inflammation, and how they are inactivated or activated by metabolism in the gut and circulating blood. Polyphenols have proven effective for key health benefits, including bone health, organ health, cardiac and vascular conditions, absorption and metabolism, and cancer and diseases of the immune system. They are a unique group of phytochemicals that are present in all fruits, vegetables and other plant products. This very diverse and multi-functional group of active plant compounds contain powerful antioxidant properties and exhibit remarkable chemical, biological and physiological properties, including cancer prevention and cardio-protective activities. Expands coverage on green tea, cocoa, wine, cumin and herbs Outlines their chemical properties, bioavailability and metabolomics Provides a self-teaching guide to learn the mechanisms of action and health benefits of polyphenols
Download or read book Flavonoids and Other Polyphenols written by and published by Elsevier. This book was released on 2001-06-05 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: The critically acclaimed laboratory standard for more than forty years, Methods in Enzymology is one of the most highly respected publications in the field of biochemistry. Since 1955, each volume has been eagerly awaited, frequently consulted, and praised by researchers and reviewers alike. Now with more than 300 volumes (all of them still in print), the series contains much material still relevant today-truly an essential publication for researchers in all fields of life sciences.This volume presents an extensive collection of new methodologies to aid progress in solving unanswered questions concerning the bioavailability and metabolism of flavonoids and polyphenols, their biochemical and molecular biological effects on cell regulation, and their effects on health. Major topics in this volume include sources, characterization, analytical methods, bioavailability, antioxidant action, and biological activity.
Download or read book Indian Science Abstracts written by and published by . This book was released on 1983 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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.
