Download or read book Carotenoids 4 written by B. C. L. Weedon and published by Elsevier. This book was released on 2013-10-22 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carotenoids — 4 brings together the main lectures presented at the Fourth International Symposium on Carotenoids held in Berne, Switzerland, on August 25-29, 1975. The papers explore a wide range of topics relating to carotenoids, including their carbon-13 nuclear magnetic resonance (NMR) spectra, stereochemistry, and biosynthesis. Carotenoid-protein complexes, carotenoid glycosides, xanthoxin and abscisic acid, and photoregulation of carotenoid biosynthesis in plants are also discussed. This book is comprised of 13 chapters and begins with an analysis of the carbon-13 NMR spectra of derivatives of beta-carotene, such as zeaxanthin, isozeaxanthin, violaxanthin, and alloxanthin. The reader is then introduced to carotenoid-protein complexes, with emphasis on the distinction between carotenoid-lipoglycoprotein complexes and astaxanthin-proteins in which the absorption band of the carotenoid is unaltered in shape. Subsequent chapters deal with carotenoid glycosides; the structures, chemical reactions, and stereochemistry of naturally occurring carotenoids; synthesis of carotenoids and related polyenes; and the apocarotenoid system of sex hormones and prohormones in Mucoraceous fungi. The early steps in and later reactions of carotenoid biosynthesis are also examined. The last chapter is devoted to the photoregulation of carotenoid biosynthesis in plants. This monograph will be a valuable source of information for chemists.

Download or read book Ohio State University written by Ohio State University and published by . This book was released on 1950 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vitamin K written by and published by BoD – Books on Demand. This book was released on 2022-03-23 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vitamin K is a fat-soluble vitamin and a significant hydrophobic signaling molecule, like vitamins A and D. Besides its classical functions as a cofactor of γ-glutamyl carboxylase, which catalyzes the γ-carboxylation of vitamin K-dependent proteins, vitamin K has novel physiological and pharmacological activities that have been elucidated in the past two decades. The discovery of detailed action mechanisms of non-classical activities of vitamin K and the development of novel derivatives with unique structural and biological profiles would improve the understanding of vitamin K functions and clinical applications. This book discusses the biology and chemistry of vitamin K, which is helpful for fundamental and clinical investigations.

Download or read book Experiment Station Record written by U.S. Office of Experiment Stations and published by . This book was released on 1941 with total page 1054 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experiment Station Record written by United States. Office of Experiment Stations and published by . This book was released on 1940 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cis tr ns Isomeric Carotenoids Vitamins A and Arylpolyenes written by Laczlo Zechmeister and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemistry and Biology of Synthetic Retinoids written by Marcia I. Dawson and published by CRC Press. This book was released on 2018-01-18 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to present an overview of advances in both retinal and retinoic acid synthetic chemistry and biology. Chapters are written by research workers who are active in these fields. Emphasis is placed on structure-activity relationships. It includes topics of cell differentiation, maintenance of cell morphology, and vision. This reference contains a special section on assays which were developed to measure retinoid activity. This book is ideal for those interested in the fields of photobiology, organic chemistry, biological chemistry, and nutrition.

Download or read book The Vitamins written by W. H. Sebrell and published by Elsevier. This book was released on 2013-10-22 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Vitamins: Chemistry, Physiology, Pathology, Methods, Volume II, Second Edition covers the chemical, physiological, pathological, and methodological aspects of various vitamins. This book is organized around the various vitamins with the physical, chemical, microbiological, and animal assays for each vitamin being discussed in a single chapter. This volume contains three chapters. Each chapter concerns the chemistry, industrial production, biogenesis, biochemistry, deficiency effects, requirements, pharmacology, and pathology of each of the vitamins. The vitamins evaluated include vitamin B6 and B12 groups and biotin. This book will be of value to practitioners, investigators, teachers, and students, who wants to better understand the role of the vitamins in biology.

Download or read book Research Awards Index written by and published by . This book was released on with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fortschritte der Chemie Organischer Naturstoffe Progress in the Chemistry of Organic Natural Products Progr s Dans La Chimie Des Substances Organiques Naturelles written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pesticides Documentation Bulletin written by and published by . This book was released on 1965 with total page 1210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Technology of Vitamins in Food written by P. Berry Ottaway and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last few years have seen a growing consumer awareness of nutrition and healthy eating in general. As a consequence, the food industry has become more concerned with the nutritional value of products and the maintenance of guaranteed micronutrient levels. While the food industry has the responsibility of producing foods that provide a realistic supply of nutrients, including vitamins, it is now also required to offer produce with a high degree of convenience and a long shelf life. Vitamins are relatively unstable, being affected by factors such as heat, light and other food components, but also by the processes needed to preserve the goods or to convert them into consumer products (such as pasteurization, sterilization, extrusion and irradiation). The result of these interactions may be a partial or total degradation of the vitamins. Food technology is concerned with both the maintenance of vitamin levels in foods and the restoration of the vitamin content to foods where losses have occurred. In addition, foods designed for special nutritional purposes, such as infant food and slimming goods, need to be enriched or fortified with vitamins and other micronutrients. This book reviews vitamins as ingredients of industrially manufactured food products. The technology of their production and use is covered from the food technologist's and engineer's points of view. Detailed coverage is also provided of other technical aspects such as analysis, stability and the use of vitamins as food technological aids.

Download or read book Studies in Natural Products Chemistry written by Atta-ur Rahman and published by Elsevier. This book was released on 1998-12-03 with total page 1365 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Products Chemistry continues to grow at an increasing pace and this growth is reflected in the present volume of Studies in Natural Products Chemistry, which is the 20th of this series. The first 20 volumes were largely devoted to structure and synthesis of various classes of natural products, irrespective of their bioactivity. Subsequent volumes of this series will however be devoted to the chemistry of bioactive natural products and will therefore a departure from the earlier volumes.The present volume contains contributions from a number of eminent scientists and covers interesting reviews on terpenes, alkaloids and other types of natural products reported from terrestrial and marine sources. Comprehensive indexes covering all the 20 volumes have been prepared which include a Cumulative General Subject Index along with more focused Cumulative Indices on Organic Synthesis, Pharmacological Activity and Biological Source. This comprehensive indexing of the volumes should make the entire series much more valuable and user-friendly.

Download or read book Vitamins and Hormones written by and published by Academic Press. This book was released on 1947-01-01 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vitamins and Hormones

Download or read book New Synthetic Approaches to a Ring Analogs of Vitamin D3 written by Milton Lloyd Hammond and published by . This book was released on 1978 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1973 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conjugate Addition Reactions in Organic Synthesis written by P. Perlmutter and published by Elsevier. This book was released on 2013-10-22 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction to the chemistry of conjugate reactions, a group of reactions that constitute one of the most important classes of chemical reactions in organic synthesis. The book is organised in terms of the major classes of conjugate acceptors. Within each of these classes, the chemistry and applications of conjugate additions with several different categories of nucleophiles have been examined. Where several different nucleophiles achieve the same synthetic transformation, they are cross-referenced within the book and qualitative comparisons offered where appropriate. Examples of the use of conjugate additions in total synthesis of important molecules are included, with a special emphasis throughout the book on stereoselectivity. This will be a useful main text for graduate and postgraduate courses on conjugate addition reactions or the Michael reaction. It could also serve as a supplementary text for courses on topics such as the chemistry of organocopper reagents, enamines and carbanion chemistry.