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.
Автор: Michelle A Thompson, Parker B Collins Название: Handbook on Gallic Acid: Natural Occurrences, Antioxidant Properties & Health Implications ISBN: 1626189218 ISBN-13(EAN): 9781626189218 Издательство: Nova Science Рейтинг: Цена: 290390.00 T Наличие на складе: Невозможна поставка. Описание: Claudia, single mother of two young children, pines for her past independent life. Her ex, after all, has moved on to a new wardrobe, a new penchant for lattes, new adult friends. But in Claudia`s house she`s still finding bananas in the sock drawer, cigarettes taped to wrestling figures, and doodles on her MasterCard bills. Then Claudia receives the unexpected news that her mother has died.
Автор: Dharmendra K. Gupta; Jos? M. Palma; Francisco J. C Название: Antioxidants and Antioxidant Enzymes in Higher Plants ISBN: 3030091465 ISBN-13(EAN): 9783030091460 Издательство: Springer Рейтинг: Цена: 111790.00 T Наличие на складе: Поставка под заказ. Описание:
This book provides an overview of antioxidants and antioxidant enzymes and their role in the mechanisms of signaling and cellular tolerance under stress in plant systems.
Major reactive oxygen species (ROS)-scavenging/modulating enzymes include the superoxide dismutase (SOD) that dismutates O2 into H2O2, which is followed by the coordinated action of a set of enzymes including catalase (CAT), ascorbate peroxidase (APX), glutathione peroxidase (GPX) and peroxiredoxins (Prx) that remove H2O2. In addition to the ROS scavenging enzymes, a number of other enzymes are found in various subcellular compartments, which are involved in maintaining such redox homeostasis either by directly scavenging particular ROS and ROS-byproducts or by replenishing antioxidants. In that respect, these enzymes can be also considered antioxidants. Such enzymes include monodehydroascorbate reductase (MDAR), dehydroascorbate reductase (DHAR), glutathione reductase (GR), alternative oxidases (AOXs), peroxidases (PODs) and glutathione S-transferases (GSTs). Some non-enzymatic antioxidants, such as ascorbic acid (vitamin C), carotenes (provitamin A), tocopherols (vitamin E), and glutathione (GSH), work in concert with antioxidant enzymes to sustain an intracellular steady-state level of ROS that promotes plant growth, development, cell cycles and hormone signaling, and reinforces the responses to abiotic and biotic environmental stressors.
Offering a unique compilation of information on antioxidants and antioxidant enzymes, this is a valuable resource for advanced students and researchers working on plant biochemistry, physiology, biotechnology, and signaling in cell organelles, and those specializing in plant enzyme technology.
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