Download or read book Evaluation of the Antioxidant and Biological Properties of Muscadine Grape Seed Extracts written by Montreka Yvonne Dansby and published by . This book was released on 2006 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: antioxidants, anti-microbial, anti-carcinogenic, grape seed, polyphenols, muscadines.
Download or read book Evaluation of the Antioxidant and Biological Properties of Muscadine Grape Seed Extracts written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this research were i) to optimize extraction of phenolic compounds from muscadine grape seeds using food grade solvents, ii) to characterize and quantify the phenolic compounds present in Carlos muscadine grape seed extracts, iii) to assess the oxidative stability of the grape seed extract, iv) to evaluate the antimicrobial activity of the optimal muscadine grape seed extract, and v) to evaluate the effect of muscadine grape seed extract on MCF-10A breast cells. Carlos muscadine grape seeds were manually removed from the skin and pulp, then freeze-dried or oven-dried. Phenolic compounds were extracted from muscadine grape seeds using a Dionex Accelerated Solvent ExtractorÒ 200 following a two factor composite design. The two factors were solvent and temperature. Ethanol in combination with water and ethyl acetate in combination with water were evaluated in this research. Solvent percentages ranged from 35% to 95% and temperature ranged from 75°C to 150°C. Optimal extraction conditions were determined using the Folin-Ciocalteu and oxygen radical absorbance capacity assays. Identification and quantification of the phenolic compounds were determined by high performance liquid chromatography with mass spectroscopy. The optimal extraction conditions for the highest recovery of phenolic compounds consisted of the freeze-dried seeds extracted with 65% ethanol and 35% water at 150°C, with total phenolic and oxygen radical absorbance capacity values of 5.87 mg GAED and 60.32 mM-TED of seeds, respectively. The four major phenolic compounds quantified in the muscadine grape seed extract were epicatechin, catechin, gallic acid and ellagic acid. Oxidative stability index of the muscadine grape seed extract resulted in an induction period of 4.6 hours. In the antimicrobial study, both muscadine grape seed extract and ellagic acid inhibited the growth of E. coli 0157:H7, Listeria monocytogenes, and Salmonella typhimur.
Download or read book Grape Seeds written by José Manuel Lorenzo Rodríguez and published by . This book was released on 2016 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the role of bioactive compounds in grape seed and their beneficial effects. Among the 11 chapters, the authors also discuss the composition, biological activity, and potential applications of grape seeds in the food industry and the health effects of grape seed extracts. As in other matrices, the presence of bioactive molecules in grape seed is related to several factors like grape varieties, climatic and soil conditions, vinification processes, winemaking procedures, extraction techniques and finally evaluation protocols. Chapter 1 addresses the extraction methodologies to obtain biomolecules of interest from grape seed, from the conventional to the most innovative. Chapter 2 discusses the most important and used methods to evaluate the antioxidant capacity of grape seed. Chapter 3 is focused on how flavonoids could modulate the body homeostasis acting directly on the gastrointestinal tract, explaining their effects on obesity-related pathologies. Chapter 4, using liquid chromatographic and mass detection techniques, centers on flavanols, one of the most important types of polyphenols occurring in grape seed. Chapter 5 complements Chapter 2 in evaluating total antioxidant capacity considering that antioxidant activity is usually due to different antioxidants present in grape seed. Chapter 6 studies the effects of polyphenolic extracts in arterial hypertension and oxidative stress via glutathione-peroxidase. Chapter 7 revises the antioxidant properties of grape seed in the conservation of different meat products and dose effect to increasing the shelf life of these products. Chapter 8 shows the potential application of developing new products with healthier characteristics to garner greater consumer acceptance using grape seed in their formulations. Chapter 9 provides a review of the composition and nutritional value of the majority compounds (fatty acid, amino acid and mineral profile), showing the potential application of the use of grape seed as a food supplement to improve the human diet. Chapter 10 indicates the potent antimicrobial activity of grape seed extract against many different microorganisms due to the presence of flavan-3-ols, inhibiting their growth, and potential applications in the food or pharmaceutical industries or even in the medical field. Chapter 11 is focused on the potential use of bioactive compounds in grape seed extract as a remedy against lipid oxidation of meat products.
Download or read book Chemical Profiles and Biological Properties Evaluation written by Qi You and published by . This book was released on 2012-10-04 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Antioxidant Properties of Muscadine Grape Products written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenolic compounds present in grapes and wines may play a positive role in human nutrition, related to their positive protective action towards reducing the risks associated with heart disease and the scavenging properties toward free radicals associated with degenerative diseases. Noble and carlos grapes were either cold pressed at room temperature or hot pressed at 43 C followed by collection of their free run juices and fermentation to wines. Resulting pomaces were dried at 37 C, 49 C, and 60 C by convection and vacuum ovens. Juices, wines and pomaces were tested for total phenol content and antioxidant capacity via the oxygen radical absorbance capacity assay (ORAC). Carlos grape skin, seed and delipidized seed extracts were analyzed to determine their antioxidant activity in a safflower oil model system. Carlos grape skin and seed were dried at 60 C and extracted using ethyl acetate and water. The antioxidant activity of carlos grape extracts were compared to tert-butyl hydroquinone (TBHQ) and propyl gallate (PG). Three levels (60, 180 and 300 milliequivalents of gallic acid) of extract were tested in an oil model system using the oxidative stability instrument (OSI) and conjugated diene, to measure levels of antioxidant activity. The objective of this research was to study the effects of processing on muscadine juices, wines and pomaces and to study the antioxidant properties of muscadine extracts in a lipid model system. Results of processing effects indicated that noble hot pressed juice and noble wine showed a significantly higher level of total phenols and total antioxidant capacity than for carlos samples. Total phenols indicated that all noble pomaces were significantly higher than carlos pomaces. Antioxidant capacity indicated no significant difference between noble and carlos dried samples. Analysis by OSI showed that ethyl acetate seed extracts at a level of 300 milliequilvalents of gallic acid was significantly higher than TBHQ and PG. Oxidative inde.
Download or read book Plant Antioxidants and Health written by Halina Maria Ekiert and published by Springer. This book was released on 2022-06-26 with total page 861 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive reference guide to plant-derived antioxidants, their beneficial effects, mechanisms of action, and role in disease prevention and improving general health (anti-ageing effect). The content is divided into three main parts, the first of which covers various antioxidants (such as polyphenols, carotenoids, tocopherols, tocotrienols, glutathione, ascorbic acid), their origins, plant biochemistry and industrial utilization. In turn, the book’s second, main part focuses on antioxidants’ beneficial health effects, explains biochemical fundamentals such as the free radical theory and oxidative stress, and discusses antioxidants’ role in e.g. cancer, cardiovascular diseases, inflammation, degenerative diseases and ageing. The third part reviews general laboratory methods for antioxidant screening, preservation and determination. Written by an international team of experts, this highly interdisciplinary book will benefit a broad range of health professionals and researchers working in biochemistry, biotechnology, nutrition, plant science and food chemistry. It offers an indispensable, up-to-date guide for anyone interested in antioxidants and the role of a plant-based diet in disease prevention and control
Download or read book Seed Oil written by Dieu Hong Nguyen Khanh and published by Nova Science Publishers. This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vegetable oils have been regarded as a new generation feedstock that requires strengthening and developing in the near future. In this book, various kinds of seed oil derived feedstock including, moringa oleifera seed oil, neem seed oil, calophyllum inophyllum seed oil, grape seed oil, argan oil and rubber seed oil are introduced in terms of their production, applications and development in a variety of sectors such as industries, healthcare, cosmetics, medicine or functional food, bio-pesticide and biofuels. These uses all bring considerable benefits to the economy, social development and environmental protection. The book content reviews different aspects of refining and applying processes for each seed oil, as well as reveals a number of research results published by the authors of each chapter. Upon further consideration, all these seed oils are categorized as the second generation feedstock; they do not compete with food security and have higher productivity compared to the others. Therefore, they could play a crucial role in making new products like biofuels, green fuels and so on, enhancing the performance of the old products and processes such as synthetic pesticide production, hydraulic or lubricant application. Thus, they either partially or completely replace the improper feedstock, including fossil sources, first generation vegetable oils and fats, to name but a few.
Download or read book Handbook of Grape Processing By Products written by Charis M. Galanakis and published by Academic Press. This book was released on 2017-03-27 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Grape Processing By-Products explores the alternatives of upgrading production by-products, also denoting their industrial potential, commercial applications and sustainable solutions in the field of grape valorization and sustainable management in the wine industry. Covering the 12 top trending topics of winery sustainable management, emphasis is given to the current advisable practices in the field, general valorization techniques of grape processing by-products (e.g. vermi-composting, pyrolysis, re-utilization for agricultural purposes etc.), the newly introduced biorefinery concept, different techniques for the separation, extraction, recovery and formulation of polyphenols, and finally, the healthy components of grape by-products that lead to target applications in the pharmaceutical, enological, food and cosmetic sectors. Presents in-depth information on grape processing Addresses the urgent need for sustainability within wineries Reveals the opportunities of reutilizing processing by-products in profitable ways Explores general valorization methods and separation and extraction methods for the recovery of high added-value extracts/compounds and their transformation to final products
Download or read book Antioxidants in Food Vitamins and Supplements written by Amitava Dasgupta and published by Academic Press. This book was released on 2014-02-11 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antioxidants in Food, Vitamins and Supplements bridges the gap between books aimed at consumers and technical volumes written for investigators in antioxidant research. It explores the role of oxidative stress in the pathophysiology of various diseases as well as antioxidant foods, vitamins, and all antioxidant supplements, including herbal supplements. It offers healthcare professionals a rich resource of key clinical information and basic scientific explanations relevant to the development and prevention of specific diseases. The book is written at an intermediate level, and can be easily understood by readers with a college level chemistry and biology background. Covers both oxidative stress-induced diseases as well as antioxidant-rich foods (not the chemistry of antioxidants) Contains easy-to-read tables and figures for quick reference information on antioxidant foods and vitamins Includes a glycemic index and a table of ORAC values of various fruits and vegetables for clinicians to easily make recommendations to patients
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phenolic Compounds written by Marcos Soto-Hernández and published by BoD – Books on Demand. This book was released on 2017-03-08 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenolic compounds comprise a broad class of natural products formed mainly by plants, but also microorganisms and marine organisms that have the capacity to form them. Nowadays the interest in these compounds has increased mainly due to their diverse chemical structure and wide biological activity valuable in the prevention of some chronic or degenerative diseases. The functional foods are a rich source of these phytochemicals, and this is the starting point for this book, which shows the state of the art of the phenolic compounds and their biological activity. This book integrates eleven chapters that show the state of the art of diverse biological activity of the phenolic compounds, present in some crops or fruits.
Download or read book Bioactives in Fruit written by Margot Skinner and published by John Wiley & Sons. This book was released on 2013-06-14 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: For centuries we have known that fruit is important for health, but we are only just beginning to fully understand why. Bioactives in Fruit: Health Benefits and Functional Foods aims to summarise some of our current knowledge on the bioactive compounds that are associated with the health benefits of specific fruits with a strong emphasis on the validation of health benefits by human intervention trials. Reflecting the current interest in food and health, the book includes strategies to retain and enhance the bioactives in fruit through breeding, growing conditions, fruit storage, processing into ingredients and production of functional foods. To accomplish this task authors with expertise in biology, chemistry, pharmacology, food science, nutrition, medicine, and horticulture have contributed. They come from universities, government and industry funded research institutes and biotechnology and food companies in Europe, the United States, Asia and New Zealand to give the book a broad perspective. This book, describing fruit bioactives, their health benefits when consumed as a food and related topics regarding their development into fresh or processed functional foods, will be of use to postgraduate students, researchers, functional food product developers, food regulators and anyone who has curiosity about why fruit is good for you. The information contained within will provide plant breeders with new targets for the development of value-added horticultural products, and will also provide nutritionists and dieticians with a useful resource for developing strategies to assist in preventing or slowing disease onset or severity. Bioactives in Fruit: Health Benefits and Functional Foods is a major resource which will be required reading for anyone working in the fields of health and functional foods.
Download or read book Advances in Grape and Wine Biotechnology written by Antonio Morata and published by BoD – Books on Demand. This book was released on 2019-09-04 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Grape and Wine Biotechnology is a collection of fifteen chapters that addresses different issues related to the technological and biotechnological management of vineyards and winemaking. It focuses on recent advances in the field of viticulture with interesting topics such as the development of a microvine model for research purposes, the mechanisms of cultivar adaptation and evolution in a climate change scenario, and the consequences of vine water deficit on yield components. Other topics include the metabolic profiling of different Saccharomyces and non-Saccharomyces yeast species and their contribution in modulating the sensory quality of wines produced in warm regions, the use of new natural and sustainable fining agents, and available physical methods to reduce alcohol content. This volume will be of great interest to researchers and vine or wine professionals.
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 Antioxidant Properties of Spices Herbs and Other Sources written by Denys J. Charles and published by Springer Science & Business Media. This book was released on 2012-11-27 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scientific world and modern society today is experiencing the dawning of an era of herbal medicine. Extensive research has shown that aromatic plants are important anti-inflammatory, antioxidant, anti aging and immune boosting delectable foods, with the magic and miracle to boost our immune system providing us with extended and an improved quality of life. Apart from making bland recipes into welcoming or interesting victories, herbs and spices have stirred the minds of the research community to look deeper into its active components from a functional perspective. It is essential to present the scientific and medicinal aspect of herbs and spices together with the analysis of constituents, its medicinal application, toxicology and its physiological effects. Herbs and spices with high levels of antioxidants are in great demand as they tend to promote health and prevent diseases naturally assuring increased safety and reliability for consumers. Herbs and spices are not only known for taste and flavor, but today research has opened up a new realm in which the antioxidant properties of these aromatic plants provide preservation for foods and health benefits for consumers who look forward to concrete scientific research to guide them further and explore herbal medicine. The aim of this book is to create awareness in society about the reliability of medicinal properties of certain herbs and spices through scientific and scholarly research.
Download or read book Polyphenolic Phenomena written by Augustin Scalbert and published by . This book was released on 1993 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grapes and Health written by John M. Pezzuto and published by Springer. This book was released on 2016-06-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a thorough review of the scientific research that links the consumption of grapes to better health. The book starts with a basic review of grape biology, including the key families of phytochemicals found in grapes, and where they are found. An overview of the rationale for and subsequent creation of a standardized grape powder for use in basic and clinical research provides insight and understanding regarding its widespread use in grape-specific research today. The remaining chapters each thoroughly examine a key area of health, demonstrating a significant scope of impact on well-being. The book examines the role of grapes in supporting heart health under multiple angles: general cardiovascular effects, as well as specific effects directly linked to atherosclerosis and hypertension. Other emerging and important areas of health are examined, ranging from grapes and cancer, where grape consumption has been shown to protect healthy colon tissue; grapes and inflammation, where grapes have been shown to block inflammatory activity in immune cells of fat tissue; to brain health, where a grape-enriched diet has been shown to protect against neuronal damage due to loss of oxygen in the brain, as well as against oxidative stress-related anxiety and resulting memory loss; to grapes and eye health where grape consumption has been shown to protect the retina from damage.
