Download or read book Carotenoid Cleavage Products written by Peter Winterhalter and published by . This book was released on 2013 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carotenoid derived Aroma Compounds written by Peter Winterhalter and published by . This book was released on 2002 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface 1 Carotenoid-Derived Aroma Compounds: An Introduction 1 2 Analysis of Norisoprenoid Aroma Precursors 20 3 HPLC-MS Analysis of Carotenoid-Derived Aroma Precursors 36 4 CD Spectroscopy as a Powerful Tool for the Stereochemical Assignment of Carotenoid-Derived Aroma Compounds 56 5 Analyzing Carotenoid-Derived Aroma Compounds Using Gas Chromatography-Olfactometry 67 6 Carotenoid Cleavage Enzymes in Animals and Plants 76 7 Identification of [beta]-Damascenone Progenitors and Their Biogenesis in Rose Flowers (Rosa damascena Mill.) 89 8 Production of Aroma Compounds by Enzymatic Cooxidation of Carotenoids 102 9 Thermal Generation of Carotenoid-Derived Compounds 115 10 Carotenoid-Derived Aroma Compounds in Tobacco 131 11 Carotenoid-Derived Aroma Compounds in Tea 145 12 Carotenoid-Derived Aroma Compounds in Flower Scents 162 13 Bound Volatiles in Brown Boronia Flowers (Boronia megastigma) 183 14 C[subscript 13]-Norisoprenoids in the Aroma of Colombian Tropical Fruits 194 15 Carotenoid Degradation Products in Paprika Powder 206 16 Flavor Chemistry of Saffron 220 17 The Formation of [beta]-Damascenone in Wine 241 18 C[subscript 13]-Norisoprenoid Aglycon Composition of Leaves and Grape Berries from Muscat of Alexandria and Shiraz Cultivars 255 19 Effect of Sunlight Exposure on Norisoprenoid Formation in White Riesling Grapes 262 20 The Significance of 1,1,6-Trimethyl-1,2-Dihydronaphthalene in the Production of High Quality Riesling Wines 273 21 Formation of 1,1,6-Trimethyl-1,2-Dihydronaphthalene and Other Norisoprenoids in Wine: Considerations on the Kinetics 285 Author Index 303 Subject Index 304.
Download or read book Carotenoids written by John T. Landrum and published by CRC Press. This book was released on 2009-12-21 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carotenoids are of great interest due to their essential biological functions in both plants and animals. However, the properties and functions of carotenoids in natural systems are surprisingly complex. With an emphasis on the chemical aspects of these compounds, Carotenoids: Physical, Chemical, and Biological Functions and Properties presents a b
Download or read book Dietary Reference Intakes for Vitamin C Vitamin E Selenium and Carotenoids written by Institute of Medicine and published by National Academies Press. This book was released on 2000-08-27 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Carotenoid Oxygenases from Camellia Sinensis Osmanthus Fragrans and Prunus Persica Nucipersica written by Susanne Baldermann and published by Cuvillier Verlag. This book was released on 2008 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carotenoids Vol 4 Natural Functions written by George Britton and published by Springer Science & Business Media. This book was released on 2008-11-14 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Eccentric Cleavage Products of Beta Carotene written by Damian P. Hruszkewycz and published by . This book was released on 2009 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The most important role of beta-carotene has long been thought to be the metabolic cleavage at the central double bond to produce two molecules of vitamin A (retinol). There is growing interest in the "eccentric cleavage" of dietary carotenoids at different double bond sites of beta-carotene to produce apocarotenals and their possible oxidation to apocarotenoic acids. However, there are no careful, quantitative analyses of the levels of these compounds in human foods and tissues, and little is known of the enzymology of their formation. This project is part of a larger effort to characterize the full family of putative metabolites of beta-carotenes and lycopene, their occurrence, and their biological significance. We are synthesizing and characterizing all of the possible aldehyde and acid metabolites of beta-carotene for use as analytical standards and for direct assay of their biological activity. Multi-step syntheses were employed to synthesize many of the molecules. Nuclear magnetic resonance spectroscopy, UV-visible spectroscopy, high performance liquid chromatography, and mass spectrometry are being used for characterization. The laboratory of Dr. Earl Harrison (Dept. of Nutrition) is currently studying the interaction of the eccentric cleavage products with the nuclear retinoic acid receptors (RARs), which are responsible for cell differentiation and aspects of the immune response. The interaction of these molecules with other nuclear receptors will be analyzed in the future. The samples will also be used as standards to quantitate the concentrations of eccentric cleavage products in biological samples. The synthesis of the molecules prepared to date will be described as well as aspects of the limited biological activity data gathered to date.
Download or read book Carotenoids in Health and Disease written by Norman I. Krinsky and published by CRC Press. This book was released on 2004-08-30 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first source to collect the latest evidence linking carotenoids to human health and disease, this stimulating reference studies the role of carotenoids in the prevention of chronic disease and reviews breakthrough studies from more than 40 field authorities on the latest research. The book reveals the most recent findings regarding the use of c
Download or read book Carotenoids in Nature written by Claudia Stange and published by Springer. This book was released on 2016-08-02 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive, edited book explores carotenoids and their important functional roles in yeast, bacteria and plants and a profound exposition on the structures of carotenoid molecules, focusing in the first of three parts on the biosynthesis of carotenoids. The regulation of carotenoid biosynthesis in photosynthesis as well as in plant, fruits, storage roots and algae is central to the second part, and discoveries about the function of carotenoids in human health feature in the third and final part. Many helpful illustrations, explanations, overviews and examples help to bring readers up to date on relevant themes including carotenogenic genes, carotenoids in fruits and metabolic engineering. The book explores where carotenoids are synthesized in nature, including in carrots and algae. Contributing expert authors examine enzyme functions and plant models, and analyze the structure of carotenoid molecules. The function of carotenoids in photosynthesis and in photosynthetic organs as well as during fruit ripening are then explored. A whole chapter is dedicated to the latest research on apocarotenoids and further chapters cover interesting and novel themes on plastid development and the epigenetic regulation that affects carotenoid synthesis in plants. The metabolic engineering of carotenoids that has been done in fruits, plants, and seeds is another area that readers can explore, along with evidences on the function of carotenoids in human nutrition, as antioxidants, as in the control of lipid metabolism and in the absorption of carotenoids. This is a highly informative and wide-ranging work which will update researchers in the field, as well as supporting students of plant physiology and biotechnology, as supplementary reading.
Download or read book The Expression of Carotenoid Cleavage Dioxygenases 1 4a and 4b in Berries of Vitis Vinifera Throughout Ripening and in Vitro Substrate Specificity written by Yi-Chia Lin and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Carotenoid cleavage dioxygenases (CCDs) are a group of enzymes that participate in carotenoid catabolism, with CCD1 and CCD4 involved in norisoprenoid production. Norisoprenoids, breakdown products of carotenoids, are volatile compounds with low sensory thresholds contributing to the aroma of flowers and fruits, including grape Vitis vinifera. Due to the uneven ripening nature of grape berries, a mean value of pooled samples on a given day may not reflect such variation. A single berry approach was performed to relate the gene expression of VvCCD1, VvCCD4a, and VvCCD4b with the firmness of grape berries, making a direct linkage between gene expressions of one berry to the firmness measurement of that berry. VvCCD1 and VvCCD4b gene expression were found to be negatively correlated with firmness under certain conditions, while VvCCD4a expression did not correlate with firmness. A series of carotenoid-producing Escherichia coli cell lines were used to reveal the substrate specificity of VvCCD1, VvCCD4a, and VvCCD4b in vitro. In this study, VvCCD1 showed cleaving activity at the 9-10 (9'-10') carbon position towards cyclic ends of [beta]-carotene, [delta]-carotene, [epsilon]-carotene, and [alpha]-zeacarotene. VvCCD1 also showed 5'-6' carbon position cleaving activity towards the acyclic end for [delta]-carotene, while for [alpha]-zeacarotene the cleaving activity to the acyclic end was found towards both the 5'-6' and 9'-10' carbon positions. Of the carotenoids tested, VvCCD4b was found only capable of cleaving [alpha]-zeacarotene at the 9-10 carbon position, while VvCCD4a did not utilize any of the substrates tested.
Download or read book Data Analysis in Molecular Biology and Evolution written by Xuhua Xia and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data Analysis in Molecular Biology and Evolution introduces biologists to DAMBE, a proprietary, user-friendly computer program for molecular data analysis. The unique combination of this book and software will allow biologists not only to understand the rationale behind a variety of computational tools in molecular biology and evolution, but also to gain instant access to these tools for use in their laboratories. Data Analysis in Molecular Biology and Evolution serves as an excellent resource for advanced level undergraduates or graduates as well as for professionals working in the field.
Download or read book Carotenoid Cleavage Products written by Peter Winterhalter and published by OUP USA. This book was released on 2014-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the latest research and developments in carotenoid cleavage reactions, stemming from an ACS Symposium.
Download or read book Apocarotenoids of Crocus sativus L From biosynthesis to pharmacology written by Shoib Ahmad Baba and published by Springer. This book was released on 2016-11-04 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a product of years of research on saffron biology. It intends to give a broad but concise overview of the various aspects of apocarotenoid biosynthesis in Crocus sativus, its regulation and pharmacology . Crocus sativus L. of family Iridaceae is an important medicinal plant. The dried stigma of C. sativus flower is considered as the world's costliest spice. Saffron is the sources of unique carotenoid derived molecules called apocarotenoids which include crocin, crocetin, picrocrocin and safranal. These molecules are synthesized in the tissue and developmental stage specific manner. Besides providing colour, aroma and flavour to the spice, these molecules have tremendous medicinal importance. The book uncovers major concepts of apocarotenoids biosynthesis and provides deeper and more complete understanding about their biotechnological and pharmacological applications. The book is divided into three sections – The first section provides a general introduction of C. sativus, its apocarotenoids, their biosynthesis, regulation and transport. Second section provides information about the carotenoid cleavage dioxygenases (CCDs) which are the key players in apocarotenoid biosynthesis. The classification of plant CCDs, their structure, reaction mechanism, biotechnological application are thoroughly discussed. The final section deals with the major pharmacological properties of C. sativus apocarotenoids, ranging from their role as anticancer to their utility as neuroprotective molecules. This is a one of its kind book on Crocus sativus. It will be useful for the researchers working on Crocus sativus, students and also practitioners involved in extraction and bio-synthesis of the useful medical components.
Download or read book Carotenoids Carotenoid and Apocarotenoid Analysis written by and published by Academic Press. This book was released on 2022-07-22 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carotenoids: Carotenoid and Apocarotenoid Analysis, Volume 670, the latest release in the Methods in Enzymology series, highlights new advances in the field, with this new volume covering Getting to know carotenoids, Laser capture of tissues for micro-scale carotenoid analyses, Metabolic engineering of carotenoids: procedures for metabolomic characterization, LC-MS analysis of intracellular metabolites for precursors to the carotenoid pathway, Use of E. coli to produce carotenoid standards, HPLC analysis of carotenoids from Bacteria, Purification and development of standards for carotenoid quantification in plant tissues, and much more. Additional sections in this release cover Ultra-High Performance Liquid Chromatography-Mass Spectrometry Analysis of Plant Apocarotenoids, Detection and analysis of novel and known volatile plant apocarotenoids, Carotenoid extraction, detection, and analysis in citrus, Strategies For The Separation And Tentative Identification Of Geometrical (Cis/Trans, Z/E) Isomers Of Carotenoids, Use of stable isotopes to study bioconversion and bioefficacy of pro-vitamin A carotenoids, Carotenoid extraction and analysis of blood plasma/serum, and more. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in the Methods in Enzymology series Includes the latest information on Carotenoids: Carotenoid and Apocarotenoid Analysis
Download or read book Carotenoids and Retinoids written by Lester Packer and published by AOCS Publishing. This book was released on 2005-05-30 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: The presence of carotenoids in the diet and their role in human health has become a subject of unprecedented interest. The chapters in this book represent an account of the information presented at a recent workshop, combined with several additional invited contributions to cover topics more completely that are currently at the cutting edge of research. Some of the highlights of this book include a thorough review of the special role that vitamin A intake plays in the health status of developing countries, the essential role of vitamin A in cell signaling, the molecular targets involved in carotenoid action in smoke-induced lung pathology, and how carotenoids are beneficial in cardiovascular health.
Download or read book Food Carotenoids written by Delia B. Rodriguez-Amaya and published by John Wiley & Sons. This book was released on 2015-09-01 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carotenoids were first studied as natural pigments, then as precursors of vitamin A, and then as bioactive compounds against chronic diseases. These compounds have been and continue to be the subject of intense research worldwide, now with an expanded scope. Food Carotenoids: Chemistry, Biology and Technology gathers all the important information about these major compounds which impact both food quality and human health. It integrates in one volume various aspects of food carotenoids, such as: Structures and physicochemical properties Biosynthetic pathways and metabolism Analysis and composition of foods Stability and reactions during processing Commercial production as food colorants and precursors of aroma compounds Bioavailability and health benefits Having worked with carotenoids in various aspects for 44 years, Delia Rodriguez-Amaya is uniquely placed to pass on her wealth of knowledge in this field. This book will serve as solid background information for professionals in Food Science, Food Technology, Nutrition, Agriculture, Biology, Chemistry and Medical Sciences, whether in the academe, industry, governmental and non-governmental agencies.
Download or read book Food Carotenoids written by Delia B. Rodriguez-Amaya and published by John Wiley & Sons. This book was released on 2015-11-09 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carotenoids were first studied as natural pigments, then as precursors of vitamin A, and then as bioactive compounds against chronic diseases. These compounds have been and continue to be the subject of intense research worldwide, now with an expanded scope. Food Carotenoids: Chemistry, Biology and Technology gathers all the important information about these major compounds which impact both food quality and human health. It integrates in one volume various aspects of food carotenoids, such as: Structures and physicochemical properties Biosynthetic pathways and metabolism Analysis and composition of foods Stability and reactions during processing Commercial production as food colorants and precursors of aroma compounds Bioavailability and health benefits Having worked with carotenoids in various aspects for 44 years, Delia Rodriguez-Amaya is uniquely placed to pass on her wealth of knowledge in this field. This book will serve as solid background information for professionals in Food Science, Food Technology, Nutrition, Agriculture, Biology, Chemistry and Medical Sciences, whether in the academe, industry, governmental and non-governmental agencies.
