Sterols Types Classification And Structure
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Sterols Types Classification And Structure
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Author : Scott Jimenez
language : en
Publisher:
Release Date : 2020-04-18
Sterols Types Classification And Structure written by Scott Jimenez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-18 with categories.
This book describes the methodology used to determine sterol content in coral reef food webs, and how sterol data is used in trophic ecology studies. The authors briefly explain the basics of gas chromatography and mass spectrometry as necessary tools to confidently separate, identify, and quantify sterols. Sterols from different sponge families have been described, however, few studies have been conducted involving the sterols of the freshwater sponge compared to those of the marine environment. The number of sterols present varies with the species, and this characteristic make it possible to use this data as a chemosystematic marker. In olive oil, sterols constitute the majority of the unsaponifiable fraction. In recent years, there has been increased interest in the sterols of olive oil due to their health benefits and their importance to virgin olive oil quality. Thus, the authors discuss recent findings concerning the effect of cultivars on the sterolic profile of extra virgin olive oil. The subsequent study aims to contribute to the optimisation and valorisation of virgin olive oil quality in the world olive-producing areas. This work was carried out on the study of virgin olive oil from two new olive varieties obtained through uncontrolled crossings. The sterolic fraction of argan oil is also compared to that of olive oil. The total phytosterol content ranged from 1700.80 mg/kg in chemlali oil to 150.40mg/kg in argan oil. In contrast to chemlali oil in which Î2-sitosterol is predominant, the major sterols detected in argan oil is schottenol and spinasterol. Additionally, the standards of the European Union legislation for fats and oils can help to verify olive oil authenticity using the sterolic profile. As such, this collection critiques the existing regulatory methods and standards, highlights weaknesses and proposes possible solutions to safeguard the consumer and protect the olive oil market. In closing, the authors examine the analysis of phytosterols, a multistage procedure that includes extraction, isolation/purification as a group of related compounds and a chromatographic technique for separation, identification, and quantification.
Nutrition
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Author : Alice Callahan
language : en
Publisher:
Release Date : 2020
Nutrition written by Alice Callahan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Biology categories.
Molecular Biology Of The Cell
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Author : Bruce Alberts
language : en
Publisher:
Release Date : 2002
Molecular Biology Of The Cell written by Bruce Alberts and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Cytology categories.
Phytosterols As Functional Food Components And Nutraceuticals
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Author : Paresh C. Dutta
language : en
Publisher: CRC Press
Release Date : 2003-12-02
Phytosterols As Functional Food Components And Nutraceuticals written by Paresh C. Dutta and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-12-02 with Technology & Engineering categories.
Analyses food and biological samples of phytosterols and discusses plant sterol analysis with respect to functional foods. Investigates the safety of phytosterols and phytosterol esters and associated health risks, including potential impact on cancer development and the lowering of cholesterol levels. Details the chemistry, occurrence, and biological effects of phytosterol oxides.
Diet And Health
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 1989-01-01
Diet And Health written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989-01-01 with Medical categories.
Diet and Health examines the many complex issues concerning diet and its role in increasing or decreasing the risk of chronic disease. It proposes dietary recommendations for reducing the risk of the major diseases and causes of death today: atherosclerotic cardiovascular diseases (including heart attack and stroke), cancer, high blood pressure, obesity, osteoporosis, diabetes mellitus, liver disease, and dental caries.
The Structure Of Biological Membranes
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Author : Philip L. Yeagle
language : en
Publisher: CRC Press
Release Date : 2011-07-18
The Structure Of Biological Membranes written by Philip L. Yeagle and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-07-18 with Medical categories.
Biological membranes provide the fundamental structure of cells and viruses. Because much of what happens in a cell or in a virus occurs on, in, or across biological membranes, the study of membranes has rapidly permeated the fields of biology, pharmaceutical chemistry, and materials science. The Structure of Biological Membranes, Third Edition pro
Bioactive Compounds
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Author : Leila Queiroz Zepka
language : en
Publisher: BoD – Books on Demand
Release Date : 2021-09-29
Bioactive Compounds written by Leila Queiroz Zepka and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-29 with Science categories.
Bioactive Compounds - Biosynthesis, Characterization, and Applications is an authoritative compilation of chapters on bioactive compounds with proven activities. It provides valuable information about biosynthesized active compounds that can be used for the further development of products in various industries. Chapters cover such topics as biosynthesis, characterization, separation, and purification, and applications of bioactive molecules. It describes and discusses bioresources of animal, vegetal, and microbial origin as potential sources of flavonoids, polysaccharides, sterols, polyphenols, amino acids, and others. This book provides insight into future developments in the field and, as such, is an essential resource for academicians, industrial researchers, and practitioners in biomolecules with biological activity. Key features: • Describes several classes of bioactive compounds and their associated activities • Highlights potential contributions of bioactive compounds as alternatives in the prevention and/or treatment of diseases • Contains information relevant to the development and use of new products
Organic Geochemistry
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Author : Geoffrey Eglinton
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Organic Geochemistry written by Geoffrey Eglinton and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.
For many years, the subject matter encompassed by the title of this book was largely limited to those who were interested in the two most economically important organic materials found buried in the Earth, namely, coal and petroleum. The point of view of any discussions which might occur, either in scientific meetings or in books that have been written, was, therefore, dominated largely by these interests. A great change has occurred in the last decade. This change had as its prime mover our growing knowledge of the molecular architecture of biological systems which, in turn, gave rise to a more legitimate asking of the question: "How did life come to be on the surface of the Earth?" A second motivation arose when the possibilities for the exploration of planets other than the Earth-the moon, Mars, and other parts of the solar system-became a reality. Thus the question of the possible existence of life elsewhere than on Earth conceivably could be answered.
The Biology Of Cholesterol And Related Steroids
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Author : N. B. Myant
language : en
Publisher: Butterworth-Heinemann
Release Date : 2014-04-24
The Biology Of Cholesterol And Related Steroids written by N. B. Myant and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-24 with Science categories.
The Biology of Cholesterol and Related Steroids focuses on the study of sterols in relation to living organisms. The publication first takes a look at the analysis of sterols and related steroids and the distribution of sterols and related steroids in nature, as well as the processes of extraction and separation and presence of sterols in plants, fungi, vertebrates, and invertebrates. The text then ponders on biosynthesis of sterols and metabolism of cholesterol. Topics include formation of fatty acid esters of cholesterol, steroid hormones, biosynthetic pathway to sterols, reaction mechanisms, and comparative aspects of sterol synthesis. The manuscript examines the developmental aspects of cholesterol metabolism and sterols in biological membranes. The book also reviews cholesterol synthesis in animal tissues, sterol metabolism in isolated cells, and epidemiology of the plasma cholesterol. Discussions focus on selection of statistical populations, genetic influences, regulation of sterol synthesis, general aspects of sterol metabolism, and removal of cell cholesterol in vivo. The publication is a dependable source of data for biochemists and readers interested in the biology of cholesterol and steroids.
Green Extraction Of Natural Products
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Author : Farid Chemat
language : en
Publisher: John Wiley & Sons
Release Date : 2016-03-11
Green Extraction Of Natural Products written by Farid Chemat 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 2016-03-11 with Science categories.
Extraction processes are essential steps in numerous industrial applications from perfume over pharmaceutical to fine chemical industry. Nowadays, there are three key aspects in industrial extraction processes: economy and quality, as well as environmental considerations. This book presents a complete picture of current knowledge on green extraction in terms of innovative processes, original methods, alternative solvents and safe products, and provides the necessary theoretical background as well as industrial application examples and environmental impacts. Each chapter is written by experts in the field and the strong focus on green chemistry throughout the book makes this book a unique reference source. This book is intended to be a first step towards a future cooperation in a new extraction of natural products, built to improve both fundamental and green parameters of the techniques and to increase the amount of extracts obtained from renewable resources with a minimum consumption of energy and solvents, and the maximum safety for operators and the environment.