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Author: Loránd Farkas
Publisher: Elsevier Science & Technology
ISBN:
Category : Science
Languages : en
Pages : 564
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Book Description
Author: Loránd Farkas
Publisher: Elsevier Science & Technology
ISBN:
Category : Science
Languages : en
Pages : 564
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Book Description
Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309069491
Category : Medical
Languages : en
Pages : 530
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Book Description
This volume is the newest release in the authoritative series of quantitative estimates of nutrient intakes to be used for planning and assessing diets for healthy people. Dietary Reference Intakes (DRIs) is the newest framework for an expanded approach developed by U.S. and Canadian scientists. This book discusses in detail the role of vitamin C, vitamin E, selenium, and the carotenoids in human physiology and health. For each nutrient the committee presents what is known about how it functions in the human body, which factors may affect how it works, and how the nutrient may be related to chronic disease. Dietary Reference Intakes provides reference intakes, such as Recommended Dietary Allowances (RDAs), for use in planning nutritionally adequate diets for different groups based on age and gender, along with a new reference intake, the Tolerable Upper Intake Level (UL), designed to assist an individual in knowing how much is "too much" of a nutrient.
Author: J. B. Harborne
Publisher: Springer
ISBN: 1489929134
Category : Science
Languages : en
Pages : 630
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Book Description
The major purpose ofthis third volume in The Flavonoidsseries is to provide a detailed review of progress in the field during the five years, 1981-1985 inclusive. It thus continues the comprehensive coverage of the literature on these fascinating and important plant pigments which began in 1975 with the publication of The Flavonoids and which was followed in 1982 with The Flavonoids: Advances in Research. As with the two previous vo1umes, this one is entire1y se1f-contained and where necessary tabu1ar data and references from earlier vo1umes are included and expanded here. A unique feature is the complete listing in the Appendix ofall known flavonoids, which now number over 4000 structures; in this list, structures newly reported during the period 1981-1985 are so indicated. The first ten chaptersofthis book provide a critical review ofthe new substancesthat have been discovered among each of the main classes of flavonoid during the period under review. Again, the numberofnew isoflavonoids reported outweighs that ofother classesand ahundred pagesare needed to describe all the nove1 findings. Neoflavonoids, which were omitted in the first supplement, have been included again and a special chapter on miscellaneous flavonoids has been introduced to cope with those structures (e.g. homoisoflavonoids) which do not fit in easily anywhere else. Although there have been advances in flavonoid methodology, these have not been asspectacular as in earlier years. Hence, literature reports on new chromatographic and spectral procedures are included here in the individual chapters under the different flavonoid classes.
Author: Bohm
Publisher: CRC Press
ISBN: 9789057023538
Category : Science
Languages : en
Pages : 520
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Book Description
Offering a wide ranging view of this important class of plant pigments, after a brief examination of the history & literature of flavonoids, this book explores structural variation of all subclasses of flavonoids, techniques for isolation, purification, & determination of structures, chemical syntheses, biosynthesis & genetics, patterns of distribution in the plant kingdom, & uses. Lastly, the functions of flavonoids in nature are investigated, as well as ways in which these compounds may have a more direct impact upon the human race. Contents: Introduction & Historical Perspective * Structural Variation * Occurrence & Distribution of Flavonoids * Extraction, Purification, & Identification of Flavonoids * Synthesis & Interconversions of Flavonoids * Biosynthesis & Genetics * Flavonoid Functions in Nature * Human Uses of Flavonoids
Author: Elhadi M. Yahia
Publisher: John Wiley & Sons
ISBN: 111915796X
Category : Technology & Engineering
Languages : en
Pages : 1445
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Book Description
Now in two volumes and containing more than seventy chapters, the second edition of Fruit and Vegetable Phytochemicals: Chemistry, Nutritional Value and Stability has been greatly revised and expanded. Written by hundreds of experts from across the world, the chapters cover diverse aspects of chemistry and biological functions, the influence of postharvest technologies, analysis methods and important phytochemicals in more than thirty fruits and vegetables. Providing readers with a comprehensive and cutting-edge description of the metabolism and molecular mechanisms associated with the beneficial effects of phytochemicals for human health, this is the perfect resource not only for students and teachers but also researchers, physicians and the public in general.
Author: Hardeep Singh Tuli
Publisher: Springer
ISBN: 9811358745
Category : Medical
Languages : en
Pages : 191
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Book Description
The book comprehensively introduces readers to various aspects of flavonoids, a category of natural metabolites that exhibits various pharmacological effects. It discusses their chemistry, absorption and metabolism, mechanisms of action and toxicology as well as future perspectives for clinical applications, and also provides detailed insights into their anti-cancer properties, since flavonoids are known to modulate tumor-associated intracellular as well as extracellular signaling pathways. The book also highlights the current research on the health effects of selected flavonoids, and their various roles in cancer prevention and treatment. Lastly, the book elucidates nanotechnology-mediated tools to enhance the bioavailability and solubility of flavonoids to improve their bioactivity and pharmacokinetic parameters.
Author: Ingrid Emerit
Publisher: Springer Science & Business Media
ISBN: 1468457306
Category : Medical
Languages : en
Pages : 585
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Book Description
Twenty years ago, the enzyme superoxide dismutase which uses the superoxide radical anion as its specific substrate was reported. With this discovery was born a new scientific field, in which oxygen, necessary for aerobi c 1 ife on thi s planet, had to be cons i dered also in terms of its toxicity and stresses. This stimulated the search for knowledge of active oxygen species in biology and medicine. Superoxide and other reactive oxygen species are now implicated in many disease processes. Major advances have been achieved during these past years with respect to free radical generation and mechanisms of free radical action in causing tissue injury. In parallel, the possibil ity of influencing free radical related disease processes by antioxidant treatment was studied in various in vitro and in vivo systems. This was the unique theme of a conference organized in Paris by the Society for Free Radical Research (December 9-10, 1988) which brought together experts from basic sciences and clinicians in order to evaluate the current status of antioxidant therapy. The conference emphasized fundamental processes in antioxidant action. Among the major topics were superoxide dismutase (SOD) and low molecular weight substances with such activity, called SOD mimics. Other antioxidant enzymes were also considered. Antioxidant vitamins, in particular vitamins E and C, other naturally occurri ng antioxidants and vari ous synthet i c antioxidants were included in the presentations as there is now a rapidly developing series of compounds with potentially interesting clinical applications.
Author: R. O. B. Wijesekera
Publisher: Routledge
ISBN: 1351409859
Category : Health & Fitness
Languages : en
Pages : 278
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Book Description
As the medicinal plant industry blooms into a billion dollar business, it reaches beyond collection, propagation, harvesting and sale of crude vegetal drugs into product formulation, packaging and dispensing of sophisticated phyto-pharmaceuticals and herbal preparations. The scientific study of these medicines and the systematic uplifting of the industry to preserve the ancient and serve the modern, is now a global challenge. The Medicinal Plant Industry puts together the various facets of this multi-disciplinary industry and its global interest. It discusses the dire need for developing countries to acquire technologies and techniques for programmed cultivation of medicinal plants. It addresses a wide variety of topics including the old philosophies, modern impact of traditional medicines, and methods of assessing the spontaneous flora for industrial utilization. It covers aspects of cultivation and climatic variations, biological assessment and formulation, process technologies, phytochemical research and information sources. The book reviews highly developed traditional medicine in China and India, and covers experiences in Africa and other continents.
Author: José Justino
Publisher: BoD – Books on Demand
ISBN: 953513423X
Category : Science
Languages : en
Pages : 486
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Book Description
Flavonoids are abundant secondary metabolites found in plants and fungi that have various roles in these organisms, including pigmentation, cell signalling, plant defence and inter-organism communication. Due to their abundance in nature, flavonoids are also important components of the human diet, and the last four decades have seen an intense study focused on the structure characterization of flavonoids and on their roles in mammal metabolism. This book reviews most of the well-established activities of flavonoids, and we also present more recent research studies on the area of flavonoids, including the chemical aspects of structure characterization of flavonoids, the biosynthesis of flavonoids in model plants as well as their role in abiotic stress situations and in agriculture, the role of flavonoids in metabolism and health and their importance in foods, from consumption to their use as bioactive components.
Author: Jeffrey B. Harborne
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 910
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Book Description
Flavonoids are a large and important group of natural products derived from 'flavone'. Some flavonoids are intensely coloured, providing a spectrum of colours from red to blue in flowers, fruit and leaves. Other flavonoids are essentially colourless, producing the 'whiteness' of white flowers. Besides their contribution to plant colour, flavonoids have a variety of other roles in the growth and development of plants. Leaf flavonoids provide protection from the potential damage of UVB radiation. Certain flavanones are formed as antifungal barriers in plant leaves in response to microbial infection and others play an important part in plant reproduction. Flavonoids also exhibit a wide range of biological properties including anti-microbial, insecticidal and oestrogenic activities. Edited by one of the world's acknowledged leading researchers in flavonoid chemistry and biochemistry, this book is the essential guide to the chemical structure and function of all known flavonoids and contains full references, CAS numbers, chemical structures, molecular formulae and several extensive indexes. The Handbook of Natural Flavonoids is the definitive reference to this large and important group of natural products for researchers in pharmaceutical and medicinal chemistry, plant biochemistry and organic chemistry.
