Lignans
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Lignans
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Author : David Barker
language : en
Publisher: MDPI
Release Date : 2019-05-03
Lignans written by David Barker and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-03 with Science categories.
Lignans are a class of natural products found mainly in plants. They have a wide variety of structures and exhibit a range of potent biological activities. Lignans are also well-known components of a number of widely eaten foods and are frequently studied for their dietary impact. Owing to these factors, lignans have been extensively studied by scientists from a large number of disciplines. This collection of research and review articles describes topics ranging in scope from the recent isolation and structural elucidation of new lignans, strategies towards the chemical synthesis of lignans, assessment of their biological activities and potential for further therapeutic development. Research showing the impact of lignans in the food and agricultural industries is also presented.
Lignans
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Author : David C. Ayres
language : en
Publisher: Cambridge University Press
Release Date : 1990-11-30
Lignans written by David C. Ayres and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-11-30 with Health & Fitness categories.
Lignans are widely occurring plant compounds and are closely related to lignin, which forms the woody component of trees and other plants. The lignans are characterized by their dimeric composition from cinnamic acids, and they are attracting increasing attention as a result of their pharmacological properties. The volume surveys the chemical, biological and clinical properties of lignans as well as providing information on their isolation, purification, identification and chemical synthesis.
The Lignan Handbook
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Author : Norman G. Lewis
language : en
Publisher: CRC Press
Release Date : 2022-06-07
The Lignan Handbook written by Norman G. Lewis and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-07 with Science categories.
Lignans are aromatic compounds isolated from plants. This handbook presents an authoritative and comprehensive review of lignan chemistry, biochemistry, nomenclature, uses, and occurrence. Lignans are used in a wide variety of industries and this book will appeal to those working in the pulp and paper industries, renewable energy, specialty chemicals, pharmaceuticals, flavors and fragrances, agriculture and forestry, evolution and ecology. Additionally, the book features a comprehensive lignans dictionary section, drawn from the prestigious Dictionary of Natural Products. Other features include: Presents a comprehensive and up-to-date account of this important group of natural products Addresses and resolves problems in current lignan nomenclature Edited by the leaders in the field of lignan chemistry and biochemistry
Lignans Insights Into Their Biosynthesis Metabolic Engineering Analytical Methods And Health Benefits
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Author : Christophe F. Hano
language : en
Publisher: Frontiers Media SA
Release Date : 2021-02-17
Lignans Insights Into Their Biosynthesis Metabolic Engineering Analytical Methods And Health Benefits written by Christophe F. Hano and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-17 with Science categories.
Lignans Advances In Research And Application 2011 Edition
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Author :
language : en
Publisher: ScholarlyEditions
Release Date : 2012-01-09
Lignans Advances In Research And Application 2011 Edition written by and has been published by ScholarlyEditions this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-09 with Science categories.
Lignans: Advances in Research and Application: 2011 Edition is a ScholarlyPaper™ that delivers timely, authoritative, and intensively focused information about Lignans in a compact format. The editors have built Lignans: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Lignans in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Lignans: Advances in Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Lignin And Lignans
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Author : Cyril Heitner
language : en
Publisher: CRC Press
Release Date : 2016-04-19
Lignin And Lignans written by Cyril Heitner and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-19 with Science categories.
Over the past four decades, there has been immense progress in every area of lignin science, ranging from the enzymology of lignin biodegradation, to the delignification of wood fiber during pulping and bleaching, to advances in spectroscopy. Lignin and Lignans: Advances in Chemistry captures the developments that have been achieved by world-class
Lignans
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Author : David Barker
language : en
Publisher:
Release Date : 2019
Lignans written by David Barker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Chemistry categories.
Lignans are a class of natural products found mainly in plants. They have a wide variety of structures and exhibit a range of potent biological activities. Lignans are also well-known components of a number of widely eaten foods and are frequently studied for their dietary impact. Owing to these factors, lignans have been extensively studied by scientists from a large number of disciplines. This collection of research and review articles describes topics ranging in scope from the recent isolation and structural elucidation of new lignans, strategies towards the chemical synthesis of lignans, assessment of their biological activities and potential for further therapeutic development. Research showing the impact of lignans in the food and agricultural industries is also presented.
The Lignan Macromolecule From Flaxseed
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Author : Karin Struijs
language : en
Publisher:
Release Date : 2008
The Lignan Macromolecule From Flaxseed written by Karin Struijs and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Flaxseed categories.
Lignans are diphenolic compounds, which are of interest because of their positive health effects. The aims of the research described in this thesis are to identify the precise composition and structure of the lignan macromolecule from flaxseeds, to convert plant lignans into the bioactive mammalian lignans by fermentation, and to investigate how the bioconversion of lignans influences their estrogenicity. In order to be able to reach these goals, analytical and preparative protocols were developed. The lignan macromolecule from flaxseed was found to consist of mainly secoisolariciresinol diglucoside (SDG) ester-linked via 3-hydroxy-3-methylglutaric acid (HMGA). Furthermore, the hydroxycinnamic acid glucosides, coumaric acid glucoside (CouAG) and ferulic acid glucoside (FeAG) were identified as constituents as well. The flavonoid herbactin diglucoside (HDG) was identified as a novel constituent of the lignan macromolecule. HDG is, just as SDG, esterified within the lignan macromolecule via HMGA. CouAG was found to link to the C-6 of a glucosyl moiety of SDG, and FeA to the C-2. The results suggested that CouAG and FeAG are mainly present at the terminal positions and, therefore, it was hypothesized that they determine the chain length of the lignan macromolecule. By modeling the relationship between the composition and the size it was shown that the average lignan macromolecule consists of three SDG units with two hydroxycinnamic acid glucosides at the terminal positions. Lignans were converted to the mammalian lignans by fermentation. Secoisolariciresinol (SECO) and its dehydrated derivative, anhydrosecoisolariciresinol (AHS), were demethylated in a similar way by Peptostreptococcus productus, Eubacterium limosum and Clostridium methoxybenzovorans. The dehydroxylation reaction was found to be more specific. Demethylated SECO could be dehydroxylated completely by Eggerthella lenta. Demethylated AHS was dehydroxylated to a lower extent than demethylated SECO. The products obtained by fermentation were purified by preparative RP-HPLC loading the samples by at-column-dilution. Furthermore, lignans from sesame seeds were investigated. Only by combining APCI-MS in the positive and the negative ionization mode, all sesame-derived lignans in complex (fermentation) mixtures could be identified. In conclusion, this research resulted in a more detailed description of the lignan macromolecule from flaxseeds. Two series of structurally different lignans were obtained by bacterial conversion.
Lignans
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Author : David C. Ayres
language : en
Publisher: Cambridge University Press
Release Date : 1990-11-30
Lignans written by David C. Ayres and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-11-30 with Health & Fitness categories.
The volume surveys the chemical, biological, and clinical properties of lignans, providing information on their isolation, purification, identification and chemical synthesis. The volume also explores fully the potential use of these compounds as antitumor agents.
Lignin And Lignans As Renewable Raw Materials
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Author : Francisco G. Calvo-Flores
language : en
Publisher: John Wiley & Sons
Release Date : 2015-12-14
Lignin And Lignans As Renewable Raw Materials written by Francisco G. Calvo-Flores and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-12-14 with Science categories.
As naturally occurring and abundant sources of non-fossil carbon, lignin and lignans offer exciting possibilities as a source of commercially valuable products, moving away from petrochemical-based feedstocks in favour of renewable raw materials. Lignin can be used directly in fields such as agriculture, livestock, soil rehabilitation, bioremediation and the polymer industry, or it can be chemically modified for the fabrication of specialty and high-value chemicals such as resins, adhesives, fuels and greases. Lignin and Lignans as Renewable Raw Materials presents a multidisciplinary overview of the state-of-the-art and future prospects of lignin and lignans. The book discusses the origin, structure, function and applications of both types of compounds, describing the main resources and values of these products as carbon raw materials. Topics covered include: • Structure and physicochemical properties • Lignin detection methods • Biosynthesis of lignin • Isolation methods • Characterization and modification of lignins • Applications of modified and unmodified lignins • Lignans: structure, chemical and biological properties • Future perspectives This book is a comprehensive resource for researchers, scientists and engineers in academia and industry working on new possibilities for the application of renewable raw materials. For more information on the Wiley Series in Renewable Resources, visit www.wiley.com/go/rrs