Cis-Trans Isomeric Carotenoids, Vitamins A and Arylpolyenes PDF Download
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Author: L. Zechmeister
Publisher: Elsevier
ISBN: 1483264939
Category : Science
Languages : en
Pages : 266
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Book Description
Cis-Trans Isomeric Carotenoids, Vitamins A, and Arylpolyenes focuses on the reactions, characteristics, and properties of cis-trans isomeric carotenoids, vitamins A, and arylpolyenes. The publication first takes a look at carotenoids, number, types, and properties of cis carotenoids, and cis-trans isomerism and UV spectra. Discussions focus on simple theoretical interpretation of spectral phenomena, spectra at extremely low temperatures, relative stabilities, melting points, rotatory power, and historical remarks on the stereoisomerism of polyenes. The text then ponders on the preparation of cis carotenoids by direct rearrangement of the all-trans form and total synthesis and naturally occurring cis and polycis carotenoids. The manuscript examines some general remarks on configurational assignments, configurational assignments in certain stereoisomeric sets, and lower-molecular weight carotenoid-carboxylic acids. Topics include bixin set, stereoisomeric sets with two aromatic terminal groups, stereoisomeric sets with one hydroaromatic and one aliphatic terminal group, configuration and infrared spectrum, and stereoisomeric types. The manuscript also elaborates on vitamins A and retinenes, cumulenes with aromatic terminal groups, and polyene azines. The publication is a dependable source of information for researchers interested in cis-trans isomeric carotenoids, vitamins A, and arylpolyenes.
Author: L. Zechmeister
Publisher: Elsevier
ISBN: 1483264939
Category : Science
Languages : en
Pages : 266
Get Book Here
Book Description
Cis-Trans Isomeric Carotenoids, Vitamins A, and Arylpolyenes focuses on the reactions, characteristics, and properties of cis-trans isomeric carotenoids, vitamins A, and arylpolyenes. The publication first takes a look at carotenoids, number, types, and properties of cis carotenoids, and cis-trans isomerism and UV spectra. Discussions focus on simple theoretical interpretation of spectral phenomena, spectra at extremely low temperatures, relative stabilities, melting points, rotatory power, and historical remarks on the stereoisomerism of polyenes. The text then ponders on the preparation of cis carotenoids by direct rearrangement of the all-trans form and total synthesis and naturally occurring cis and polycis carotenoids. The manuscript examines some general remarks on configurational assignments, configurational assignments in certain stereoisomeric sets, and lower-molecular weight carotenoid-carboxylic acids. Topics include bixin set, stereoisomeric sets with two aromatic terminal groups, stereoisomeric sets with one hydroaromatic and one aliphatic terminal group, configuration and infrared spectrum, and stereoisomeric types. The manuscript also elaborates on vitamins A and retinenes, cumulenes with aromatic terminal groups, and polyene azines. The publication is a dependable source of information for researchers interested in cis-trans isomeric carotenoids, vitamins A, and arylpolyenes.
Author: George Britton
Publisher: Springer Science & Business Media
ISBN: 3764374993
Category : Science
Languages : en
Pages : 400
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Book Description
The Carotenoids book series provides an introduction to the fundamental chemistry, detailed accounts of the basic methods used in carotenoid research, and critical discussions of the biochemistry, functions and applications of carotenoids. Part 1 discusses the fundamental properties on which the biological functions and effects of carotenoids depend. Part 2 describes important natural functions of carotenoids in all kinds of living organisms.
Author: George Britton
Publisher: Springer Science & Business Media
ISBN: 3764375019
Category : Science
Languages : en
Pages : 464
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Book Description
The Carotenoids book series provides an introduction to the fundamental chemistry, detailed accounts of the basic methods used in carotenoid research, and critical discussions of the biochemistry, functions and applications of carotenoids. The use of carotenoids against diseases is discussed. This volume is to be used in conjunction with the Carotenoids book series and the Carotenoids Handbook.
Author: Jeana Gross
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 328
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Book Description
Structure, physicol chemical properties and analitical method, description of the location, biosynthesis of pigments and biochemical changes which occur during early fruit development, maturation and senescence and factors affect these changes; Chlorophylls; Anthocyanins; Carotenoids.
Author: George Britton
Publisher: Elsevier
ISBN: 1483279847
Category : Science
Languages : en
Pages : 410
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Book Description
Carotenoid Chemistry and Biochemistry covers the proceedings of the Sixth International Symposium on Carotenoids, held in Liverpool, United Kingdome on July 26-31, 1981. This symposium highlights the interest in biochemical and biological aspects of carotenes. This book is organized into 25 chapters including chapters on carotenoid chemistry, their structures, synthesis and physical methods, with emphasis on their stereochemistry. Other chapters deal with the chemistry of complexes between carotenoids or retinoids and protein, the novel blue carotenoproteins, and the visual pigments and the nutritionally important retinol-binding proteins. The discussions then shift to animal carotenoids, carotenoid metabolism and transformations, including interesting stereochemical findings. This book also reviews studies of carotenoids in photosynthesis, the industrial importance of carotenoids, medical aspects, particularly the use of carotenoids in treatment against skin photosensitivity and their possible role in protection against cancer. The remaining chapters examine the effects of chemicals on carotenoid biosynthesis and its relevance to herbicide design. This book will be of value to carotenoid scientists and researchers.
Author: N.I. Krinsky
Publisher: Springer Science & Business Media
ISBN: 1461308496
Category : Science
Languages : en
Pages : 379
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Book Description
In the mid-1960's, scientists working on carotenoids throughout the World agreed to have periodic meetings for the purpose of discussing and disseminating scientific research results concerning all aspects of carotenoids. The meetings were also organized to act as teaching forums for students, and the major scientific results from each meeting were to result in a publication. Each meeting was planned to be International in scope, being held in different locations in the World, and organized by local, recognized carotenoid scientists. The first of the Carotenoid meetings was held in Trondheim, Norway in 1966. Meetings then followed in Las Cuces, New Mexico (1969); Cluj, Roumania (1972); Berne, Switzerland (1975); Madison, Wisconsin (1978); Liverpool; England (1981); and Munich, Federal Republic of Germany (1984). In all of these meetings, the original purposes which stimulated the first meeting were accomplished: scientific discussion, student education and resulting scientific publication.The meetings and the i~formation resulting from them have led to significant advances in carotenoid biochemistry, biology, and chemisty. This publication represents the contributions from a distinguished list of participants. We look forward to the future meetings in this series.
Author: H.A. Frank
Publisher: Springer Science & Business Media
ISBN: 0306482096
Category : Science
Languages : en
Pages : 406
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Book Description
Written by leading experts in the area of carotenoid research, this book gives a comprehensive overview of a various topics in the field. The contributions review the basic hypotheses about how carotenoids function and give details regarding testing different molecular models using state-of-the-art experimental methodologies.
Author: B. C. L. Weedon
Publisher: Elsevier
ISBN: 1483159922
Category : Science
Languages : en
Pages : 154
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Book Description
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.
Author:
Publisher: Springer Science & Business Media
ISBN: 3709171598
Category : Science
Languages : en
Pages : 611
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Book Description
Author: Dragan Cvetkovic
Publisher: BoD – Books on Demand
ISBN: 9535132113
Category : Science
Languages : en
Pages : 234
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Book Description
Carotenoids are one of the most widespread pigment groups distributed in nature; more than 700 natural carotenoids have been described so far. These pigments are known for versatile roles they play in living organisms; however, their most pivotal function is involvement in scavenging of reactive oxygen species and photoprotection. In the same time, carotenoids as natural pigments with important biological activities, such as antioxidant and provitamin A activity, have a great potential in the food, feed and pharmaceutical industries. They can be either extracted from plants and algae or synthesized by various microorganisms, including bacteria, yeasts, filamentous fungi and microalgae.
