Download or read book Medicinal Plant Research in Africa written by Victor Kuete and published by Newnes. This book was released on 2013-06-19 with total page 917 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pharmacopoeias of most African countries are available and contain an impressive number of medicinal plants used for various therapeutic purposes. Many African scholars have distinguished themselves in the fields of organic chemistry, pharmacology, and pharmacognosy and other areas related to the study of plant medicinal plants. However, until now, there is no global standard book on the nature and specificity of chemicals isolated in African medicinal plants, as well as a book bringing together and discussing the main bioactive metabolites of these plants. This book explores the essence of natural substances from African medicinal plants and their pharmacological potential. In light of possible academic use, this book also scans the bulk of African medicinal plants extract having promising pharmacological activities. - The book contains data of biologically active plants of Africa, plant occurring compounds and synthesis pathways of secondary metabolites - This book explores the essence of natural substances from African medicinal plants and their pharmacological potential - The authors are world reknowned African Scientists

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 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 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 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 Flavonoids and Related Compounds written by Jeremy P. E. Spencer and published by CRC Press. This book was released on 2012-04-24 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flavonoids exert a multiplicity of biological effects on humans and can have beneficial implications for numerous disease states. Flavonoids and Related Compounds: Bioavailability and Function examines current knowledge regarding the absorption, metabolism, and bioavailability of individual flavonoids and related phenolic compounds. Profiling the latest evidence of their impact on various human pathological conditions, the book summarizes current thinking with regard to the biotransformation and conjugation of individual compounds in the gastrointestinal tract, liver, large intestine, and cells. It highlights a topic that has been largely ignored—namely the extent to which dietary phenolics components undergo metabolism in the large intestine. It also explores the generation of bacterially derived metabolites. Individual chapters discuss which metabolites enter the circulatory system and are likely to offer protective actions against human diseases. Edited by internationally recognized leaders in the field, the book presents contributions by a panel of experts who demonstrate the potential of flavonoids in ameliorating a range of disease states, including cardiovascular disease, Alzheimer’s and Parkinson’s disease and other neurodegenerative disorders, and cancer. The research presented in this volume provides a reliable starting point for further inquiry and experimentation.

Download or read book The Flavonoids written by Jeffrey B. Harborne and published by Springer. This book was released on 2013-11-11 with total page 1218 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flavonoids, one of the most numerous and widespread groups of natural constituents, are important to man not only because they contribute to plant colour but also because many members (e.g. coumestrol, phloridzin, rotenone) are physiologically active. Nearly two thousand substances have been described and as a group they are universally distributed among vascular plants. Although the anthocyanins have an undisputed function as plant pigments, the raison d'etre for the more widely distributed colourless flavones and flavonols still remains a mystery. It is perhaps the challenge of discovering these yet undisc10sed functions which has caused the considerable resurgence of interest in flavonoids during the last decade. This book attempts to summarize progress that has been made in the study of these constituents since the first comprehensive monograph on the chemistry of the flavonoid compounds was published, under the editorship of T. A. Geissman, in 1962. The present volume is divided into three parts. The first section (Chapters 1-4) deals with advances in chemistry, the main emphasis being on spectral techniques to take into account the re cent successful applications of NMR and mass spectral measurements to structural identifications. Recent developments in isolation techniques and in synthesis are also covered in this section. Advances in chemical knowledge of individual c1asses of flavonoid are mentioned inter aha in later chapters of the book.

Download or read book Flavonoids and Their Disease Prevention and Treatment Potential written by H.P. Vasantha Rupasinghe and published by MDPI. This book was released on 2021-03-29 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flavonoids are ubiquitously present in plant-based foods and natural health products. The molecule of flavonoids is characterized by a 15-carbon skeleton of C6–C3–C6, with the different structural configuration of subclasses. The major subclasses of flavonoids with health-promotional properties are the flavanols or catechins (e.g., epigallocatechin 3-gallate from green tea), the flavones (e.g., apigenin from celery), the flavonols (e.g., quercetin glycosides from apples, berries, and onion), the flavanones (e.g., naringenin from citrus), the anthocyanins (e.g., cyanidin-3-O-glucoside from berries), and the isoflavones (e.g., genistein from soya beans). Scientific evidence has strongly shown that regular intake of dietary flavonoids in efficacious amounts reduces the risk of oxidative stress- and chronic inflammation-mediated pathogenesis of human diseases such as cardiovascular disease, certain cancers, and neurological disorders. The physiological benefits of dietary flavonoids have been demonstrated to be due to multiple mechanisms of action, including regulating redox homeostasis, epigenetic regulations, activation of survival genes and signaling pathways, regulation of mitochondrial function and bioenergetics, and modulation of inflammation response. The role of flavonoids on gut microbiota and the impact of microbial metabolites of flavonoids on optimal health has begun to unravel. The complex physiological modulations of flavonoid molecules are due to their structural diversity. However, some flavonoids are not absorbed well, and their bioavailability could be enhanced through structural modifications and applications of nanotechnology, such as encapsulation. This Special Issue consists of four review articles on flavonoids and 15 original research articles, which cover the latest findings on the role of dietary flavonoids and their derivatives in disease prevention and treatment.

Download or read book The Book of Flavonoids written by Chao-Hui Feng and published by Nova Science Publishers. This book was released on 2022 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In this book, two of the primary sources of flavonoids, i.e. plants and fruits (oranges to be specific) are comprehensively reviewed, along with their flavonoid content and antioxidant activity (including action against COVID-19) and toxicity. Besides, a general overview of the analytical techniques for flavonoids determination in their natural sources is provided. Finally, a detailed description of flow techniques and their evolution, together with their role in the automation of the sample pretreatment and its combination with separation techniques, is also included"--

Download or read book Bioactive Molecules in Food written by Jean-Michel Mérillon and published by Springer Nature. This book was released on 2019-01-25 with total page 2353 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference work provides comprehensive information about the bioactive molecules presented in our daily food and their effect on the physical and mental state of our body. Although the concept of functional food is new, the consumption of selected food to attain a specific effect existed already in ancient civilizations, namely of China and India. Consumers are now more attentive to food quality, safety and health benefits, and the food industry is led to develop processed- and packaged-food, particularly in terms of calories, quality, nutritional value and bioactive molecules. This book covers the entire range of bioactive molecules presented in daily food, such as carbohydrates, proteins, lipids, isoflavonoids, carotenoids, vitamin C, polyphenols, bioactive molecules presented in wine, beer and cider. Concepts like French paradox, Mediterranean diet, healthy diet of eating fruits and vegetables, vegan and vegetarian diet, functional foods are described with suitable case studies. Readers will also discover a very timely compilation of methods for bioactive molecules analysis. Written by highly renowned scientists of the field, this reference work appeals to a wide readership, from graduate students, scholars, researchers in the field of botany, agriculture, pharmacy, biotechnology and food industry to those involved in manufacturing, processing and marketing of value-added food products.

Download or read book Handbook of Research on Natural Products and Their Bioactive Compounds as Cancer Therapeutics written by Pandurangan, Ashok Kumar and published by IGI Global. This book was released on 2022-03-18 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many chemotherapeutic agents are available in today’s market that are highly effective against a variety of cancer types; however, the major drawbacks of these chemotherapeutic agents are the many side effects. As an alternative to these chemotherapeutic agents, there are a number of natural agents that are effective against cancer that have been tested in preclinical and clinical models over the years. These natural products must be documented and discussed in order to provide a thorough overview of all the options available for cancer treatment. The Handbook of Research on Natural Products and Their Bioactive Compounds as Cancer Therapeutics emphasizes the list of natural agents against all types of cancers and discusses the current state of research in the fields of natural products and their derivatives against cancer in preclinical and clinical models. This book also provides insight into the applications of meditation and mindfulness-based interventions in clinical and non-clinical conditions. Covering topics such as cancer therapy, antioxidants, and flavonoids, it is ideal for students, research scholars, academicians, professors, scientists, oncologists, doctors, and medical practitioners.

Download or read book Antioxidants in Sport Nutrition written by Manfred Lamprecht and published by CRC Press. This book was released on 2014-09-17 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antioxidant use in sports is controversial due to existing evidence that it both supports and hurts athletic performance. This book presents information on antioxidants, specifically for athletes, and their roles in sports nutrition. It stresses how antioxidants affect exercise performance, health, and immunity. Chapters cover oxidative stress; basic nutrition for athletes; major dietary antioxidants; sports supplements; performance/adaptation to exercise; antioxidants role in health and immunity; reviews on vitamins C, E, beta-carotene, and minerals in sports nutrition; and roles polyphenols play in high-performance sport.

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 1254 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 Phenolic Compounds in Food written by Leo M.L. Nollet and published by CRC Press. This book was released on 2018-01-29 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenolic compounds, one of the most widely distributed groups of secondary metabolites in plants, have received a lot of attention in the last few years since the consumption of vegetables and beverages with a high level of such compounds may reduce risks of the development of several diseases. This is partially due to their antioxidant power since other interactions with cell functions have been discovered. What’s more, phenolic compounds are involved in many functions in plants, such as sensorial properties, structure, pollination, resistance to pests and predators, germination, processes of seed, development, and reproduction. Phenolic compounds can be classified in different ways, ranging from simple molecules to highly polymerized compounds. Phenolic Compounds in Food: Characterization and Analysis deals with all aspects of phenolic compounds in food. In five sections, the 21 chapters of this book address the classification and occurrence of phenolic compounds in nature and foodstuffs; discuss all major aspects of analysis of phenolic compounds in foods, such as extraction, clean-up, separation, and detection; detail specific analysis methods of a number of classes of phenolic compounds, from simple molecules to complex compounds; describe the antioxidant power of phenolic compounds; and discuss specific analysis methods in different foodstuffs.

Download or read book Plant Phenolics and Human Health written by IUBMB and published by John Wiley & Sons. This book was released on 2009-10-22 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of current knowledge of phytochemicals and health Interest in phenolic phytochemicals has increased as scientific studies indicate these compounds exhibit potential health benefits. With contributions from world leaders in this research area, Plant Phenolics and Human Health: Biochemistry, Nutrition, and Pharmacology offers an essential survey of the current knowledge on the capacity of specific micronutrients present in ordinary diets to fight disease. The coverage in this resource: Explains the presence and biochemical properties of phenolics present in fruits and vegetables, as well as in foods derived from their plant sources Provides biochemical explanations on how certain plant phenolics fight cardiovascular and neurodegenerative diseases, cancer, and other widespread pathologies Focuses on certain phenolics, e.g., flavonoids, stilbenes, and curcuminoids, and provides insights on the biochemical bases used to define their significance in the diet as well as their recommended consumption requirements and toxicity Appropriate for graduate and upper-level undergraduate courses in human and animal nutrition, basic nutritional biology, physiology, pharmacology, and other health-related disciplines, Plant Phenolics and Human Health: Biochemistry, Nutrition, and Pharmacology serves as both an invaluable supplementary classroom text and a self-teaching guide for professionals interested in defining the association between diet and health from classical, alternative, and complementary biomedical perspectives.

Download or read book Polyphenols Mechanisms of Action in Human Health and Disease written by Ronald Ross Watson and published by Academic Press. This book was released on 2018-08-06 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyphenols: Mechanisms of Action in Human Health and Disease, Second Edition describes the mechanisms of polyphenol antioxidant activities and their use in disease prevention. Chapters highlight the anti-inflammatory activity of polyphenols on key dendritic cells, how they modulate and suppress inflammation, and how they are inactivated or activated by metabolism in the gut and circulating blood. Polyphenols have proven effective for key health benefits, including bone health, organ health, cardiac and vascular conditions, absorption and metabolism, and cancer and diseases of the immune system. They are a unique group of phytochemicals that are present in all fruits, vegetables and other plant products. This very diverse and multi-functional group of active plant compounds contain powerful antioxidant properties and exhibit remarkable chemical, biological and physiological properties, including cancer prevention and cardio-protective activities. - Expands coverage on green tea, cocoa, wine, cumin and herbs - Outlines their chemical properties, bioavailability and metabolomics - Provides a self-teaching guide to learn the mechanisms of action and health benefits of polyphenols

Download or read book Plant Microbe Interactions written by B.B. Biswas and published by Springer Science & Business Media. This book was released on 1998-04-30 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen tremendous progress in unraveling the molecular basis of different plant-microbe interactions. Knowledge has accumulated on the mecha nisms of the microbial infection of plants, which can lead to either disease or resistance. The mechanisms developed by plants to interact with microbes, whether viruses, bacteria, or fungi, involve events that can lead to symbiotic association or to disease or tumor formation. Cell death caused by pathogen infection has been of great interest for many years because of its association with plant resistance. There appear to be two types of plant cell death associated with pathogen infection, a rapid hypersensitive cell death localized at the site of infection during an incompatible interaction between a resistant plant and an avirulent pathogen, and a slow, normosensitive plant cell death that spreads beyond the site of infection during some compatible interactions involving a susceptible plant and a virulent, necrogenic pathogen. Plants possess a number of defense mechanisms against infection, such as (i) production of phytoalexin, (ii) formation of hydrolases, (iii) accumulation of hydroxyproline-rich glycoprotein and lignin deposition, (iv) production of pathogen-related proteins, (v) produc tion of oligosaccharides, jasmonic acid, and various other phenolic substances, and (vi) production of toxin-metabolizing enzymes. Based on these observations, insertion of a single suitable gene in a particular plant has yielded promising results in imparting resistance against specific infection or disease. It appears that a signal received after microbe infection triggers different signal transduction pathways.