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Author: Veronica Sanda Chedea
Publisher: Nova Publishers
ISBN: 9781536102826
Category : Flavonoids
Languages : en
Pages : 0
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Book Description
Procyanidins are phenolic compounds from plants and they are abundant in our diet. Research studies on procyanidins have shown that they have many health benefits, especially as preventive agents for cancer, cardiovascular diseases and diabetes. High concentrations of procyanidins can be found in plants and foods such as red wine, grapes, grape seeds, cocoa, berries and apples. The first chapter of this book reviews the occurrence and the structure of these compounds. Since the extraction method is considered a critical step in procyanidin analysis, the second chapter describes the various methods used in literature so far with reference to the most important factors influencing the extraction. Furthermore, common separation and detection methods like high performance liquid chromatography and mass spectrometry are presented in order to give the complex image of the existing methods described so far. These principles of procyanidin fingerprinting are reflected further in studying the seed shells of the Japanese horse chestnut (Aesculus turbinata BLUME), discarded as waste materials after the preparation of edible seeds. The highly polymeric proanthocyanidins from the Japanese horse chestnut were tested for their health benefits, and this is presented in Chapter Three. As the interest in antioxidant compounds increases, the interest in studying their bioavailability has increased as well. In the context of controversy surrounding the studies on procyandins absorption and metabolisation, the next chapter tries to present different points of view related to this matter. Several applications of procyanidins in food systems are reviewed in Chapter Five, including: Co-encapsulation of green tea catechins on probiotic bacteria viability during simulated gastrointestinal digestion, stability of polyphenolic compounds on alginate, and chitosan microcapsules and procyanidin effectiveness after incorporation into food edible films. The final part of this book investigates the procyanidin structure-activity relationship and mechanisms of cardiovascular diseases because the intake of procyanidins has been associated with reduced cardiovascular disease risk by epidemiologic studies. The expertise of the authors contributing to this book is useful for graduates studying food science and technology, nutrition, pharmacy and health, and for researchers, scientists, policymakers and professionals from food, pharmacy, nutrition and biotechnology industries working on procyanidins characterization, antioxidant properties and health benefits.
Author: Veronica Sanda Chedea
Publisher: Nova Publishers
ISBN: 9781536102826
Category : Flavonoids
Languages : en
Pages : 0
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Book Description
Procyanidins are phenolic compounds from plants and they are abundant in our diet. Research studies on procyanidins have shown that they have many health benefits, especially as preventive agents for cancer, cardiovascular diseases and diabetes. High concentrations of procyanidins can be found in plants and foods such as red wine, grapes, grape seeds, cocoa, berries and apples. The first chapter of this book reviews the occurrence and the structure of these compounds. Since the extraction method is considered a critical step in procyanidin analysis, the second chapter describes the various methods used in literature so far with reference to the most important factors influencing the extraction. Furthermore, common separation and detection methods like high performance liquid chromatography and mass spectrometry are presented in order to give the complex image of the existing methods described so far. These principles of procyanidin fingerprinting are reflected further in studying the seed shells of the Japanese horse chestnut (Aesculus turbinata BLUME), discarded as waste materials after the preparation of edible seeds. The highly polymeric proanthocyanidins from the Japanese horse chestnut were tested for their health benefits, and this is presented in Chapter Three. As the interest in antioxidant compounds increases, the interest in studying their bioavailability has increased as well. In the context of controversy surrounding the studies on procyandins absorption and metabolisation, the next chapter tries to present different points of view related to this matter. Several applications of procyanidins in food systems are reviewed in Chapter Five, including: Co-encapsulation of green tea catechins on probiotic bacteria viability during simulated gastrointestinal digestion, stability of polyphenolic compounds on alginate, and chitosan microcapsules and procyanidin effectiveness after incorporation into food edible films. The final part of this book investigates the procyanidin structure-activity relationship and mechanisms of cardiovascular diseases because the intake of procyanidins has been associated with reduced cardiovascular disease risk by epidemiologic studies. The expertise of the authors contributing to this book is useful for graduates studying food science and technology, nutrition, pharmacy and health, and for researchers, scientists, policymakers and professionals from food, pharmacy, nutrition and biotechnology industries working on procyanidins characterization, antioxidant properties and health benefits.
Author: Juan Moreno
Publisher: Academic Press
ISBN: 012388439X
Category : Technology & Engineering
Languages : en
Pages : 443
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Book Description
Enological Chemistry is written for the professional enologist tasked with finding the right balance of compounds to create or improve wine products. Related titles lack the appropriate focus for this audience, according to reviewers, failing either to be as comprehensive on the topic of chemistry, to include chemistry as part of the broader science of wine, or targeting a less scientific audience and including social and historical information not directly pertinent to the understanding of the role of chemistry in successful wine production. The topics in the book have been sequenced identically with the steps of the winemaking process. Thus, the book describes the most salient compounds involved in each vinification process, their properties and their balance; also, theoretical knowledge is matched with its practical application. The primary aim is to enable the reader to identify the specific compounds behind enological properties and processes, their chemical balance and their influence on the analytical and sensory quality of wine, as well as the physical, chemical and microbiological factors that affect their evolution during the winemaking process. - Organized according to the winemaking process, guiding reader clearly to application of knowledge - Describes the most salient compounds involved in each step enabling readers to identify the specific compounds behind properties and processes and effectively work with them - Provides both theoretical knowledge and practical application providing a strong starting point for further research and development
Author: Keith W. Waldron
Publisher: Elsevier
ISBN: 0857097385
Category : Technology & Engineering
Languages : en
Pages : 939
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Book Description
Biorefineries are an essential technology in converting biomass into biofuels or other useful materials. Advances in Biorefineries provides a comprehensive overview of biorefining processing techniques and technologies, and the biofuels and other materials produced. Part one focuses on methods of optimizing the biorefining process and assessing its environmental and economic impact. It also looks at current and developing technologies for producing value-added materials. Part two goes on to explore these materials with a focus on biofuels and other value-added products. It considers the properties, limitations, and practical applications of these products and how they can be used to meet the increasing demand for renewable and sustainable fuels as an alternative to fossil fuels. Advances in Biorefineries is a vital reference for biorefinery/process engineers, industrial biochemists/chemists, biomass/waste scientists and researchers and academics in the field. - A comprehensive and systematic reference on the advanced biomass recovery and conversion processes used in biorefineries - Reviews developments in biorefining processes - Discusses the wide range of value-added products from biorefineries, from biofuel to biolubricants and bioadhesives
Author: Jianbo Xiao
Publisher: Springer
ISBN: 9789811541476
Category : Technology & Engineering
Languages : en
Pages : 1953
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Book Description
This book summarizes recent advances in the chemistry, bioactivity, nutrition, and functional aspects of dietary phytochemicals, as well as the health and functional aspects of foods rich in phytochemicals. Consisting of forty-four chapters, it discusses the different chemical types of phytochemicals in our diets and food and presents data collected from animal or human experiments that are directly related to human health. Each chapter covers the chemistry, epidemiological study, bioavailability, bioactivity (animal experiments) function in humans and safety, as well as products on the market. Moreover, the more than 200 figures make it easy to grasp the main findings in each area.
Author: Richard W. Hemingway
Publisher: Springer Science & Business Media
ISBN: 1468475118
Category : Science
Languages : en
Pages : 539
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Book Description
This book was developed from the proceedings of the first North American Tannin Conference held in Port. Angeles, Washington, August 1988. The objective of the conference was to bring together people with a common interest in condensed tannins and to promote interdisciplinary interactions that will lead to a better understanding of these important substances. Anot. her objective was the publicat. ion of this book because there has not been a monograph devoted to the chemistry and significance of tannins for several decades. The book is organized into sections dealing with the biosynthesis, structure, re actions, complexation with other biopolymers, biological significance, and use of tannins as specialty chemicals. The authors made a special attempt to focus on what we don't know as well as to provide a summary of what we do know in an effort to assist in planning future research. Our thanks go to the authors who so kindly contributed chapters and so pa tiently responded to our requests. We also thank Rylee Geboski and the Conference Assist. ance Staff, College of Forestry, Oregon State University, for their assistance in planning and conducting t. he conference, and Julia Wilson, Debbie Wolfe, Helen Coletka, and Nancy Greene of the Southern Forest Experiment Station, Pineville, Louisiana, who typed the chapt. ers. Linda Chalker-Scott was especially helpful in assisting us wit. h editing. Dick Hemingway is indebted t. o the staff of the Alexandria Forest.
Author: Kieran Tuohy
Publisher: Academic Press
ISBN: 0124079415
Category : Medical
Languages : en
Pages : 268
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Book Description
Drawing on expert opinions from the fields of nutrition, gut microbiology, mammalian physiology, and immunology, Diet-Microbe Interactions for Human Health investigates the evidence for a unified disease mechanism working through the gut and its resident microbiota, and linking many inflammation-related chronic diet associated diseases. State of the art post-genomic studies can highlight the important role played by our resident intestinal microbiota in determining human health and disease. Many chronic human diseases associated with modern lifestyles and diets — including those localized to the intestinal tract like inflammatory bowel disease and celiac disease, and more pervasive systemic conditions such as obesity, diabetes and cardiovascular disease — are characterized by aberrant profiles of gut bacteria or their metabolites. Many of these diseases have an inflammatory basis, often presenting with a chronic low-grade systemic inflammation, hinting at persistent and inappropriate activation of inflammatory pathways. Through the presentation and analysis of recent nutrition studies, this book discusses the possible mechanisms underpinning the disease processes associated with these pathologies, with high fat diets appearing to predispose to disease, and biologically active plant components, mainly fiber and polyphenols, appearing to reduce the risk of chronic disease development. - One comprehensive, translational source for all aspects of nutrition and diet's effect on gastrointestinal health and disease - Experts in nutrition, diet, microbiology and immunology take readers from the bench research (cellular and biochemical mechanisms of vitamins and nutrients) to new preventive and therapeutic approaches - Clear presentations by leading researchers of the cellular mechanisms underlying diet, immune response, and gastrointestinal disease help practicing nutritionists and clinicians (gastroenterologists, endocrinologists) map out new areas for clinical research and structuring clinical recommendations
Author: Francisco A . Tomás-Barberán
Publisher: John Wiley & Sons
ISBN: 1119563720
Category : Technology & Engineering
Languages : en
Pages : 560
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Book Description
Presents recent research on metabolism and the health effects of polyphenols Consumer interest in the health benefits of many phenolic compounds found in plant foods and derivatives has grown considerably in recent years, giving rise to an increased demand for functional foods. Although preclinical and observational studies have promoted the protective properties of polyphenols for a range of chronic diseases, evidence has shown that most dietary polyphenols have little bioavailability. Once ingested, most of them are metabolized by either the intestinal enzymes or by the gut microbiota and then undergo extensive phase-II metabolism reaching significant concentrations of conjugated metabolites. They remain in the systemic circulation and target systemic tissues where trigger biological effects. The polyphenol-derived metabolites produced in humans are dependent upon the composition of the gut microbiota and the subject genetics. Thus all the metabolites do not show the same biological activity in different individuals. To fully understand the health effects of polyphenols, further clinical investigations are required. Dietary Polyphenols describes the latest findings on the polyphenol metabolism and reviews the current evidence on their health effects and that of their bioavailable metabolites. Emphasizing the importance of interindividual variability and the critical role of gut microbiota, this authoritative volume features contributions from recognized experts in the field, exploring specific families of extractable and non-extractable phenolic compounds that exhibit potential health effects. Topics include structural diversity of polyphenols and distribution in foods, bioavailability and bioaccessibility of phenolics, metabolism, and gastrointestinal absorption of various metabolites and their health effects. This comprehensive volume: Discusses the bioavailability, bioaccessibility, pharmacokinetics studies, and microbial metabolism of different groups of phenolic compounds Examines the interaction between polyphenols and gut microbiota Describes analytical methods for identifying and quantifying polyphenols in foods and biological samples Reviews recent epidemiological and clinical intervention studies showing protective effects of polyphenols Dietary Polyphenols: Metabolism and Health Effects is an important resource for scientists working in the area of dietary polyphenols and health effects, microbiota, and their interaction with other nutritional compounds, and for health professionals, nutritionists, dieticians, and clinical researchers with interest in the role of polyphenols in the prevention and treatment of chronic diseases.
Author: Atta-ur Rahman
Publisher: Elsevier
ISBN: 0080542018
Category : Science
Languages : en
Pages : 827
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Book Description
Natural products play an integral and ongoing role in promoting numerous aspects of scientific advancement, and many aspects of basic research programs are intimately related to natural products. The significance, therefore, of the Studies in Natural Product Chemistry series, edited by Professor Atta-ur-Rahman, cannot be overestimated. This volume, in accordance with previous volumes, presents us with cutting-edge contributions of great importance.
Author: Ronald Ross Watson
Publisher: Academic Press
ISBN: 012398467X
Category : Science
Languages : en
Pages : 1504
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Book Description
Polyphenols in Human Health and Disease documents antioxidant actions of polyphenols in protection of cells and cell organelles, critical for understanding their health-promoting actions to help the dietary supplement industry. The book begins by describing the fundamentals of absorption, metabolism and bioavailability of polyphenols, as well as the effect of microbes on polyphenol structure and function and toxicity. It then examines the role of polyphenols in the treatment of chronic disease, including vascular and cardiac health, obesity and diabetes therapy, cancer treatment and prevention, and more. - Explores neuronal protection by polyphenol metabolites and their application to medical care - Defines modulation of enzyme actions to help researchers see and study polyphenols' mechanisms of action, leading to clinical applications - Includes insights on polyphenols in brain and neurological functions to apply them to the wide range of aging diseases
Author: Ingrid Sullivan
Publisher: Nova Science Publishers
ISBN: 9781634634304
Category : Flavonoids
Languages : en
Pages : 0
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Book Description
Proanthocyanidins (PACs), present in a wide variety of food products and beverages, are the second most abundant class of phenolic compounds in our diet. These polyphenolic compounds are found in high proportions in cocoa products, seeds and skins of grapes, green and black tea, cinnamon and berries, among others. These compounds possess multiple therapeutic effects including anticancer, antimicrobial activity, cardioprotective role, prevention of atherosclerosis, and neuroprotective action. Many of these pharmacological benefits, including their neuroprotective action, are attributed to their significant antioxidant activity as free radical scavengers and as modulators of oxidant/antioxidant status. This book discusses food sources, the antioxidant properties and health benefits of proanthocyanidins.
