Download or read book Structure information from HPLC and on line measured absorption spectra Flavones Flavonols and Phenolic Acids written by Maria da Graça Campos and published by Imprensa da Universidade de Coimbra / Coimbra University Press. This book was released on 2007-01-01 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tools used in scientific research are constantly changing and HPLC with photodiode array detection technique has become an important and popular technology used in studies such as plant extract analysis, drug discovery and development, the monitoring of manufacturing processes and quality assurance. The HPLC/photodiode array technique is also an important base tool of pure science. The authors have provided a compilation of valuable and unique reference material, gathered using strictly controlled conditions, and have developed theoretical rules that will aid users of this technique in the identification of the structures of the titled compound types. These compound types are widely encountered in bioactive plant components. The book will have appeal not only to academic chemists but also for example to biologists, food technologists, pharmacologists, pharmacists, the health supplements industry and the colourant industry. To our knowledge this is the first book of its kind to present and interpret a compilation of actual spectra of a series of authentic compounds, measured under identical and defined conditions that practitioners can use for direct comparison with their own data.
Download or read book Natural Products written by Kishan Gopal Ramawat and published by Springer. This book was released on 2013-06-28 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference work provides a wealth of information regarding medicinal plants and phytochemicals. It is addressed both to researchers and teachers. The handbook describes phytochemicals, which, by the strictest definition, are chemicals that are produced by plants. During the last decades, more and more groups became actively involved in exploring plants for useful metabolites that lead to the identification of several useful curative agents and many promising molecules to fight and/or prevent diseases, including carcinogenesis and stroke. But when we talk about phytochemicals, there are also medicinal plants where not a single molecule is responsible for the observed properties. This reference work therefore reviews and compiles the information on both these aspects. The volumes contain contributions on phytochemicals and herbal extracts. A large number of natural products obtained from plants and microorganisms is used in cosmetic, drug, flavor and fragrance industries. For this compilation, a range of the most important medicinal herbs and phytochemicals were selected and are described by the recognized authors in the field. The present reference work encompasses the information about well established phytochemicals, biology and biotechnology of medicinal plants or their products, their biosynthesis, novel production strategies, demand and uses, metabolism and bioavailability. There is a surge of information published in recent years on herbal medicine and their pharmacologic effects with single books available on varied subjects. However, all this information is widespread and difficult to overview. Researchers who wish to keep a pace with the rapidly developing field of natural products can now consult this newly compiled handbook to find all information about bioactive molecules and medicinal plants thoroughly compiled in one place!
Download or read book Introduction to Flavonoids written by Bohm and published by CRC Press. This book was released on 1999-01-18 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering a wide ranging view of this important class of plant pigments, after a brief examination of the history & literature of flavonoids, this book explores structural variation of all subclasses of flavonoids, techniques for isolation, purification, & determination of structures, chemical syntheses, biosynthesis & genetics, patterns of distribution in the plant kingdom, & uses. Lastly, the functions of flavonoids in nature are investigated, as well as ways in which these compounds may have a more direct impact upon the human race. Contents: Introduction & Historical Perspective * Structural Variation * Occurrence & Distribution of Flavonoids * Extraction, Purification, & Identification of Flavonoids * Synthesis & Interconversions of Flavonoids * Biosynthesis & Genetics * Flavonoid Functions in Nature * Human Uses of Flavonoids
Download or read book Flavonoids written by José Justino and published by BoD – Books on Demand. This book was released on 2017-08-23 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flavonoids are abundant secondary metabolites found in plants and fungi that have various roles in these organisms, including pigmentation, cell signalling, plant defence and inter-organism communication. Due to their abundance in nature, flavonoids are also important components of the human diet, and the last four decades have seen an intense study focused on the structure characterization of flavonoids and on their roles in mammal metabolism. This book reviews most of the well-established activities of flavonoids, and we also present more recent research studies on the area of flavonoids, including the chemical aspects of structure characterization of flavonoids, the biosynthesis of flavonoids in model plants as well as their role in abiotic stress situations and in agriculture, the role of flavonoids in metabolism and health and their importance in foods, from consumption to their use as bioactive components.
Download or read book The Systematic Identification of Flavonoids written by Tom Mabry and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: About 1958, the late Professor R. E. ALSTON and Professor B. L. TURNER, both of the Department ofBotany, The University ofTexas at Austin, initiated a general systematic investigation ofthe legurne genus Baptisia. They found that flavonoid patterns, as revealed by two-dimensional paper chromatography, were valid criteria for the recognition of the Baptisia species and for the documentation of their numerous natural hybrids. Later, they showed that the flavonoid chemistry could be used for the analysis of gene flow among populations. At that time no attempt was made to even partially identify the flavonoids which were detected chromatographically. Neverthe1ess, it soon became apparent that the full value of the chemical data for systematic purposes required knowledge of the structures of the flavonoids. In 1962, one of us (T.J.M.) in collaboration with Drs. ALSTON and TURNER beg an the chemical analysis of the more than 60 flavonoids which had been chromatographi cally detected in the 16 Baptisia species. In the intervening years, a number of chemists and botanists, inc1uding Drs. K. BAETCKE, B. BREHM, M. CRANMER, D. HORNE, J. KAGAN, B. KROSCHEWSKY, J. MCCLURE, H. RÖSLER, and J. WALLACE, participated in the devel opment of techniques and procedures for the rapid identification of known flavonoids and in the structure determination of new flavonoids. In addition, the flavonoid chem istry of many plants other than Baptisia was investigated.
Download or read book Phenolic Compounds written by Marcos Soto-Hernández and published by BoD – Books on Demand. This book was released on 2017-03-15 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenolic compounds as a large class of metabolites found in plants have attracted attention since long time ago due to their properties and the hope that they will show beneficial health effects when taken as dietary supplements. This book presents the state of the art of some of the natural sources of phenolic compounds, for example, medicinal plants, grapes or blue maize, as well as the modern methods of extraction, quantification, and identification, and there is a special section discussing the treatment, removal, and degradation of phenols, an important issue in those phenols derived from the pharmaceutical or petrochemical industries.
Download or read book The Science of Flavonoids written by Erich Grotewold and published by Springer Science & Business Media. This book was released on 2008 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the only book of its kind to provide an overview of the science of flavonoids in plants.
Download or read book Phytochemical Methods written by Jeffrey B. Harborne and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: While there are many books available on methods of organic and biochemical analysis, the majority are either primarily concerned with the application of a particular technique (e.g. paper chromatography) or have been written for an audience of chemists or for biochemists work ing mainly with animaltissues. Thus, no simple guide to modern metho ds of plant analysis exists and the purpose of the present volume is to fill this gap. It is primarily intended for students in the plant sciences, who have a botanical or a general biological background. It should also be of value to students in biochemistry, pharmacognosy, food science and 'natural products' organic chemistry. Most books on chromatography, while admirably covering the needs of research workers, tend to overwhelm the student with long lists of solvent systems and spray reagents that can be applied to each class of organic constituent. The intention here is to simplify the situation by listing only a few specially recommended techniques that have wide currency in phytochemical laboratories. Sufficient details are provided to allow the student to use the techniques for themselves and most sections contain some introductory practical experiments which can be used in classwork.
Download or read book Encyclopedia of Chromatography written by Jack Cazes and published by CRC Press. This book was released on 2009-10-12 with total page 2968 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly revised and expanded, this third edition offers illustrative tables and figures to clarify technical points in the articles and provides a valuable, reader-friendly reference for all those who employ chromatographic methods for analysis of complex mixtures of substances. An authoritative source of information, this introductory guide to specific chromatographic techniques and theory discusses the relevant science and technology, offering key references for analyzing specific chemicals and applications in industry and focusing on emerging technologies and uses.
Download or read book Frontiers and New Trends in the Science of Fermented Food and Beverages written by Rosa Lidia Solís-Oviedo and published by BoD – Books on Demand. This book was released on 2019-02-20 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: From time immemorial fermented foods have undoubtedly contributed to the progress of modern societies. Historically, ferments have been present in virtually all human cultures worldwide, and nowadays natives from many ancient cultures still conduct a wide variety of food fermentations using deep-rooted recipes and processes. Within the last four centuries, scientific research has started to unravel many aspects of the biological process behind fermentations, which has contributed to the improvement of many industrial processes. During our journey in the research field, we have always been attracted to the development of scientific research around fermentations, especially autochthonous ferments: a natural repository of novel biomolecules and biological processes that will positively impact on many application fields from health, to food, to materials.
Download or read book Beer in Health and Disease Prevention written by Victor R Preedy and published by Academic Press. This book was released on 2011-04-28 with total page 1128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beer in Health and Disease Prevention is the single comprehensive volume needed to understand beer and beer-related science. Presenting both the concerns and problems of beer consumption as well as the emerging evidence of benefit, this book offers a balanced view of today's findings and the potential of tomorrow's research. Just as wine in moderation has been proposed to promote health, research is showing that beer – and the ingredients in beer – can have similar impact on improving health, and in some instances preventing disease. This book addresses the impact of beer and beer ingredients on cancers, cardiovascular disease, anti-oxidant benefits, and other health related concerns. It offers a holistic view from beer brewing to the isolation of beer-related compounds. It contains self-contained chapters written by subject matter experts. This book is recommended for scientists and researchers from a variety of fields and industries from beer production to health-care professionals. - Winner of the 2009 Best Drinks and Health Book in the World - Gourmand World Cookbook Awards - The most comprehensive coverage of the broad range of topics related to the role of beer and beer ingredients in health - Addresses the impact of beer and beer ingredients on cancers, cardiovascular disease, anti-oxidant benefits, and other health related concerns - Presents a holistic view from beer brewing to the isolation of beer-related compounds - Appropriate for scientists and researchers from a variety of fields and industries from beer production to health-care professionals - Consistent organization of each chapter provides easy-access to key points and summaries - Self-contained chapters written by subject matter experts
Download or read book Measurement of Antioxidant Activity and Capacity written by Resat Apak and published by John Wiley & Sons. This book was released on 2018-02-20 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference for assessing the antioxidant potential of foods and essential techniques for developing healthy food products Measurement of Antioxidant Activity and Capacity offers a much-needed resource for assessing the antioxidant potential of food and includes proven approaches for creating healthy food products. With contributions from world-class experts in the field, the text presents the general mechanisms underlying the various assessments, the types of molecules detected, and the key advantages and disadvantages of each method. Both thermodynamic (i.e. efficiency of scavenging reactive species) and kinetic (i.e. rates of hydrogen atom or electron transfer reactions) aspects of available methods are discussed in detail. A thorough description of all available methods provides a basis and rationale for developing standardized antioxidant capacity/activity methods for food and nutraceutical sciences and industries. This text also contains data on new antioxidant measurement techniques including nanotechnological methods in spectroscopy and electrochemistry, as well as on innovative assays combining several principles. Therefore, the comparison of conventional methods versus novel approaches is made possible. This important resource: Offers suggestions for assessing the antioxidant potential of foods and their components Includes strategies for the development of healthy functional food products Contains information for identifying antioxidant activity in the body Presents the pros and cons of the available antioxidant determination methods, and helps in the selection of the most appropriate method Written for researchers and professionals in the nutraceutical and functional food industries,academia and government laboratories, this text includes the most current knowledge in order to form a common language between research groups and to contribute to the solution of critical problems existing for all researchers working in this field.
Download or read book The Flavonoids written by J. B. Harborne and published by Springer. This book was released on 2013-11-11 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major purpose ofthis third volume in The Flavonoidsseries is to provide a detailed review of progress in the field during the five years, 1981-1985 inclusive. It thus continues the comprehensive coverage of the literature on these fascinating and important plant pigments which began in 1975 with the publication of The Flavonoids and which was followed in 1982 with The Flavonoids: Advances in Research. As with the two previous vo1umes, this one is entire1y se1f-contained and where necessary tabu1ar data and references from earlier vo1umes are included and expanded here. A unique feature is the complete listing in the Appendix ofall known flavonoids, which now number over 4000 structures; in this list, structures newly reported during the period 1981-1985 are so indicated. The first ten chaptersofthis book provide a critical review ofthe new substancesthat have been discovered among each of the main classes of flavonoid during the period under review. Again, the numberofnew isoflavonoids reported outweighs that ofother classesand ahundred pagesare needed to describe all the nove1 findings. Neoflavonoids, which were omitted in the first supplement, have been included again and a special chapter on miscellaneous flavonoids has been introduced to cope with those structures (e.g. homoisoflavonoids) which do not fit in easily anywhere else. Although there have been advances in flavonoid methodology, these have not been asspectacular as in earlier years. Hence, literature reports on new chromatographic and spectral procedures are included here in the individual chapters under the different flavonoid classes.
Download or read book Recent Advances in Natural Products Analysis written by Seyed Mohammad Nabavi and published by Elsevier. This book was released on 2020-03-07 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Advances in Natural Products Analysis is a thorough guide to the latest analytical methods used for identifying and studying bioactive phytochemicals and other natural products. Chemical compounds, such as flavonoids, alkaloids, carotenoids and saponins are examined, highlighting the many techniques for studying their properties. Each chapter is devoted to a compound category, beginning with the underlying chemical properties of the main components followed by techniques of extraction, purification and fractionation, and then techniques of identification and quantification. Biological activities, possible interactions, levels found in plants, the effects of processing, and current and potential industrial applications are also included. - Focuses on the latest analytical techniques used for studying phytochemical and other biological compounds - Authored and edited by the top worldwide experts in their field - Discusses the current and potential applications and predicts future trends of each compound group
Download or read book Flavonoids written by Oyvind M. Andersen and published by CRC Press. This book was released on 2005-12-09 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in the flavonoid field have been nothing short of spectacular over the last 20 years. While the medical field has noticed flavonoids for their potential antioxidant, anticancer and cardioprotectant characteristics, growers and processors in plant sciences have utilized flavonoid biosynthesis and the genetic manipulation of the flavonoid pa
Download or read book High Performance Liquid Chromatography in Phytochemical Analysis written by Monika Waksmundzka-Hajnos and published by CRC Press. This book was released on 2010-11-08 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt: The powerful, efficient technique of high performance liquid chromatography (HPLC) is essential to the standardization of plant-based drugs, identification of plant material, and creation of new herbal medicines. Filling the void in this critical area, High Performance Liquid Chromatography in Phytochemical Analysis is the first book to give a comp
Download or read book Phenolic Antioxidants in Foods Chemistry Biochemistry and Analysis written by Alam Zeb and published by Springer Nature. This book was released on 2021-09-27 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant foods are an essential part of our daily diet and constitute one of the highest contributors to the world economy. These foods are rich in phenolic compounds, which play a significant role in maintaining our health. This textbook presents a comprehensive overview of the chemistry, biochemistry and analysis of phenolic compounds present in a variety of foods. The text can be used as a singular source of knowledge for plant food science and technology, covering all of the important chemical, biochemical and analytical aspects needed for a thorough understanding of phenolic antioxidants in foods. Phenolic Antioxidants In Foods: Chemistry, Biochemistry, and Analysis is comprised of three sections. The first section covers the basic concepts of antioxidants, their chemistry and their chemical composition in foods, providing a detailed introduction to the concept. The second section covers the biochemical aspects of phenolic antioxidants, including their biosynthetic pathways, biological effects and the molecular mechanism of antioxidant effects in the biological system. This section promotes an understanding of the fundamental biochemical reactions that take place in foods and after digestion and absorption. The third section covers the analytical chemistry used in the analysis of phenolic antioxidants in foods, including the basic analytical procedures, methods for analysis and chromatographic and spectroscopic analyses. This section is significant for aspiring food chemists and manufacturers to evaluate the nature and chemistry of phenolic antioxidants in foods. Featuring helpful quizzes, section summaries, and key chapter points, this textbook is the perfect learning tool for advanced chemistry undergraduates and post-graduates looking to gain a fundamental understanding of phenolic antioxidants in food products.
