Antioxidant Measurement And Applications

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Measurement of Antioxidant Activity and Capacity

Author : Resat Apak
Publisher : John Wiley & Sons
ISBN 13 : 1119135354
Total Pages : 353 pages
Book Rating : 4.1/5 (191 download)

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Book Synopsis Measurement of Antioxidant Activity and Capacity by : Resat Apak

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.

Antioxidant Measurement and Applications

Author : Fereidoon Shahidi
Publisher :
ISBN 13 :
Total Pages : 476 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Antioxidant Measurement and Applications by : Fereidoon Shahidi

Download or read book Antioxidant Measurement and Applications written by Fereidoon Shahidi and published by . This book was released on 2007 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antioxidant Measurement and Applications will provide an excellent account of lipid oxidation and oxidative stability of food lipids and the role of antioxidants in prevention of oxidation, their occurrence and sources. There is a need in the market for a book of this caliber and will be well received by the industry. The book will cover mechanisms of action of antioxidants and analytical procedures and furthers the potential health benefits of antioxidants and their role in disease risks.

Antioxidants in Food

Author : Jan Pokorny
Publisher : CRC Press
ISBN 13 : 9780849312229
Total Pages : 412 pages
Book Rating : 4.3/5 (122 download)

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Book Synopsis Antioxidants in Food by : Jan Pokorny

Download or read book Antioxidants in Food written by Jan Pokorny and published by CRC Press. This book was released on 2001-04-12 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antioxidants are an increasingly important ingredient in food processing. Their traditional role is, as their name suggests, in inhibiting the development of oxidative rancidity in fat-based foods, particularly meat and dairy products and fried foods. However, more recent research has suggested a new role in inhibiting cardiovascular disease and cancer. Antioxidants in Food: Practical Applications provides a review of the functional role of antioxidants and discusses how they can be effectively exploited by the food industry. The first part of the book looks at antioxidants and food stability with chapters on the development of oxidative rancidity in foods, methods for inhibiting oxidation, and ways of measuring antioxidant activity. Part 2 looks at antioxidants and health, including chapters on antioxidants and cardiovascular disease, their antitumour properties, and bioavailability. A major trend in the food industry, driven by consumer concerns, has been the shift from the use of synthetic to natural ingredients in food products. Part 3 looks at the range of natural antioxidants available to the food manufacturer. The final section of the book looks at how these natural antioxidants can be effectively exploited, covering such issues as regulation, preparation, antixoxidant processing functionality and their use in a range of food products from meat and dairy products, frying oils and fried products, to fruit and vegetables and cereal products.

Oxidation in Foods and Beverages and Antioxidant Applications

Author : E Decker
Publisher : Woodhead Publishing
ISBN 13 : 9780081014578
Total Pages : 0 pages
Book Rating : 4.0/5 (145 download)

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Book Synopsis Oxidation in Foods and Beverages and Antioxidant Applications by : E Decker

Download or read book Oxidation in Foods and Beverages and Antioxidant Applications written by E Decker and published by Woodhead Publishing. This book was released on 2016-08-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidative rancidity is a major cause of food quality deterioration, leading to the formation of undesirable off-flavours as well as unhealthy compounds. Antioxidants are widely employed to inhibit oxidation, and with current consumer concerns about synthetic additives and natural antioxidants are of much interest. The two volumes of Oxidation in foods and beverages and antioxidant applications review food quality deterioration due to oxidation and methods for its control. The second volume reviews problems associated with oxidation and its management in different industry sectors. Part one focuses on animal products, with chapters on the oxidation and protection of red meat, poultry, fish and dairy products. The oxidation of fish oils and foods enriched with omega-3 polyunsaturated fatty acids is also covered. Part two reviews oxidation in plant-based foods and beverages, including edible oils, fruit and vegetables, beer and wine. Oxidation of fried products and emulsion-based foods is also discussed. Final chapters examine encapsulation to inhibit lipid oxidation and antioxidant active packaging and edible films. With its distinguished international team of editors and contributors, the two volumes of Oxidation in foods and beverages and antioxidant applications is standard references for R&D and QA professionals in the food industry, as well as academic researchers interested in food quality.

Biomarkers for Antioxidant Defense and Oxidative Damage

Author : Giancarlo Aldini
Publisher : John Wiley & Sons
ISBN 13 : 0470961759
Total Pages : 380 pages
Book Rating : 4.4/5 (79 download)

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Book Synopsis Biomarkers for Antioxidant Defense and Oxidative Damage by : Giancarlo Aldini

Download or read book Biomarkers for Antioxidant Defense and Oxidative Damage written by Giancarlo Aldini and published by John Wiley & Sons. This book was released on 2011-06-09 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomarkers for Antioxidant Defense and Oxidative Damage: Principles and Practical Applications critically evaluates the basic concepts and methodologies of conventional biomarkers as well as current state-of-the-art assays for measuring antioxidant activity/oxidative stress and their practical applications. . Biomarkers for Antioxidant Defense and Oxidative Damage: Principles and Practical Applications will be of a great interest to scientists who are involved in basic research on oxidation, applied scientists evaluating the effects of nutraceuticals or pharmaceutical compounds on antioxidant activity/oxidative stress, and physicians who want to understand the degree of oxidative damage in patients with certain chronic diseases. Discovering sensitive and specific biomarkers for systemic oxidative damage is essential to understand the role of oxidative stress in human disease. Once these roles are clearly understood, we are able to identify novel drug and nutraceutical targets. This volume goes beyond conventional analytical methods of measuring overall antioxidant activity and provides insight to the discovery of biomarkers that reveal information on specific areas of oxidative stress. Contributed by an international list of experts, Biomarkers for Antioxidant Defense and Oxidative Damage: Principles and Practical Applications describes both conventional biomarkers and recent developments in this area. Special Features: Discusses conventional biomarkers as well as recent advances for measuring antioxidants and oxidative stress Biomarkers for lipid peroxidation: isoprostane, hydroxyloctadecaenoic acid, oxysterols, and reactive carbonyl species from lipid peroxidation Biomarkers for protein oxidation: carbonylation, tyrosine oxidation, ubiquitin-conjugation Biomarkers for DNA oxidative damage: comet assay, hydroxylated nucleotides, and exocylcic DNA adducts Recently developed biomarkers from cutting-edge technology

Plant Antioxidants and Health

Author : Halina Maria Ekiert
Publisher : Springer
ISBN 13 : 9783030781590
Total Pages : 861 pages
Book Rating : 4.7/5 (815 download)

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Book Synopsis Plant Antioxidants and Health by : Halina Maria Ekiert

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

Analysis of Antioxidant-Rich Phytochemicals

Author : Zhimin Xu
Publisher : John Wiley & Sons
ISBN 13 : 111822938X
Total Pages : 405 pages
Book Rating : 4.1/5 (182 download)

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Book Synopsis Analysis of Antioxidant-Rich Phytochemicals by : Zhimin Xu

Download or read book Analysis of Antioxidant-Rich Phytochemicals written by Zhimin Xu and published by John Wiley & Sons. This book was released on 2012-02-03 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: To quantify antioxidants in natural sources, the application of chromatography techniques with different detectors followed by skillful sample preparation is necessary. Analysis of Antioxidant-Rich Phytochemicals is the first book that specifically covers and summarizes the details of sample preparation procedures and methods developed to identify and quantify various types of natural antioxidants in foods. Focusing on the principle of quantification methods for natural antioxidants, the book reviews and summarizes current methods used in the determination of antioxidant-rich phytochemicals in different sources. Chapter by chapter, the distinguished team of authors describes the various methods used for analysis of the different antioxidant-rich phytochemicals – phenolic acids; carotenoids; anthocyanins; ellagitannins, flavonols and flavones; catechins and procyanidins; flavanones; stilbenes; phytosterols; and tocopherols and tocotrienols. Going beyond extensive reviews of the scientific literature, the expert contributors call on their accumulated experience in sample extraction and analysis to outline procedures, identify potential problems in dealing with different samples, and offer trouble-shooting tips for the analysis. Analysis of Antioxidant-Rich Phytochemicals covers the important food applications and health-promoting functions of the major antioxidant phytochemicals, presents general analysis principles and procedures, and systematically reviews and summarizes the various analytical methods necessary for each type of natural antioxidant in different food sources.

Handbook of Antioxidant Methodology

Author : Paul D Prenzler
Publisher : Royal Society of Chemistry
ISBN 13 : 1839165340
Total Pages : 419 pages
Book Rating : 4.8/5 (391 download)

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Book Synopsis Handbook of Antioxidant Methodology by : Paul D Prenzler

Download or read book Handbook of Antioxidant Methodology written by Paul D Prenzler and published by Royal Society of Chemistry. This book was released on 2021-10-12 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of antioxidant research has grown rapidly over the last 30 years and shows no sign of slowing down. In order to understand how antioxidants work, it is essential to understand how their activity is measured. However, antioxidant activity measurements are controversial and their value has been challenged. This book addresses a number of the controversies on antioxidant testing methods. Specifically, the book highlights the importance of context, helping the reader to decide what methods are most appropriate for different situations, how the results can be interpreted and what information may be inferred from the data. There are a multiplicity of methods for measuring activity, with no standardized method approved for in vitro or in vivo testing. In order to select an appropriate method, a thorough knowledge of the processes associated with reduction-oxidation is essential, leading to an improved understanding and use of activity measurements and the associated data. The book presents background information, in a unique style, which is designed to assist readers to grasp the fundamentals of redox processes, as well as thermodynamics and kinetics, which are essential to later chapters. Recovery and extraction of antioxidants from diverse matrices are presented in a clear and logical fashion along with methods used to determine antioxidant activity from a mechanistic perspective. Other chapters present current methodologies used for activity testing in different sample types ranging from foods and plants, to body fluids and even to packaging, but always with a strong emphasis on the nature of the sample and the underlying chemistry of the method. A number of emerging techniques for assessing antioxidant behaviour, namely, electrochemical methods, chip technology exploiting microfluidic devices, metabolomics plus studies of gene and protein expression, are examined. Ultimately, these techniques will be involved in generation of "big data" for which an understanding of chemometrics will be essential in drawing valid conclusions. The book is written to appeal to a wide audience, but will be particularly helpful for any researchers who are attempting to make sense of the vast literature and often conflicting messages on antioxidant activity.

Chemical Analysis of Antioxidant Capacity

Author : Li Niu
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110573237
Total Pages : 239 pages
Book Rating : 4.1/5 (15 download)

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Book Synopsis Chemical Analysis of Antioxidant Capacity by : Li Niu

Download or read book Chemical Analysis of Antioxidant Capacity written by Li Niu and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-06-08 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book discusses the present strategies towards antioxidant capacity evaluation including optical, chromatography, electrochemical methods as well as photoelectrochemical technique, where the advantages, limitations and different applications are analyzed and compared. Subsequently, the corresponding analysis instruments are introduced and interpreted combining with their technical characteristics, scope and performance indicators.

Antioxidants in Foods and Its Applications

Author : Emad Shalaby
Publisher : BoD – Books on Demand
ISBN 13 : 178923378X
Total Pages : 180 pages
Book Rating : 4.7/5 (892 download)

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Book Synopsis Antioxidants in Foods and Its Applications by : Emad Shalaby

Download or read book Antioxidants in Foods and Its Applications written by Emad Shalaby and published by BoD – Books on Demand. This book was released on 2018-07-11 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Free radicals are atoms or molecules containing unpaired electrons. Damage occurs when the free radical encounters another molecule and seeks to find another electron to pair its unpaired electron. Free radicals can cause mutation in different biological compounds such as protein, nucleic acids, and lipids, and the damage caused by the free radicals lead to various diseases (cancer, cardiovascular disease, aging, etc.). Antioxidants are helpful in reducing and preventing damage from free radical reactions because of their ability to donate electrons, which neutralize the radical without forming another. Ascorbic acid, for example, can lose an electron to a free radical and remain stable itself by passing its unstable electron around the antioxidant molecule. Unfortunately, new data indicate that the synthetic antioxidants used in the industry could have carcinogenic effects on human cells, thus fueling an intense search for new, natural, and efficient antioxidants. Therefore, the current book discusses the role and source of antioxidant compounds in nutrition and diets. Also, the current book includes nine chapters contributed by experts around the world, and the chapters are categorized into two sections: "Antioxidant Compounds and Biological Activities" and "Natural Antioxidants and Applications."

Natural Antioxidants

Author : Rituparna Banerjee
Publisher : CRC Press
ISBN 13 : 1315341697
Total Pages : 247 pages
Book Rating : 4.3/5 (153 download)

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Book Synopsis Natural Antioxidants by : Rituparna Banerjee

Download or read book Natural Antioxidants written by Rituparna Banerjee and published by CRC Press. This book was released on 2017-06-26 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the recent years, considerable research has been carried out evaluating natural substances as antioxidative additives in food products, leading to novel combinations of antioxidants and the development of novel food products. In addition to their antioxidative capacity, these natural additives have positive effects on the human body with documented health benefits. This valuable new book provides an overview of natural antioxidants, their sources, methods of extraction, regulatory aspects, and application techniques, specifically focusing on different foods of animal origin to improve their oxidative stability.

Natural Antioxidants

Author : Fereidoon Shahidi
Publisher : The American Oil Chemists Society
ISBN 13 : 9780935315776
Total Pages : 436 pages
Book Rating : 4.3/5 (157 download)

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Book Synopsis Natural Antioxidants by : Fereidoon Shahidi

Download or read book Natural Antioxidants written by Fereidoon Shahidi and published by The American Oil Chemists Society. This book was released on 1997 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides state-of-the-art discussion of natural antioxidants from dietary sources, their occurrence, health effects, chemistry, and methodologies. The book summarizes data on the occurrence of antioxidative compounds in cereals and legumes, oilseeds, herbs and spices, vegetables, teas, muscle foods, and other commodities. The antioxidant vitamins and enzymes also are thoroughly discussed. The potential beneficial effects of dietary antioxidants, the chemistry of food antioxidants, and methodologies to assess lipid oxidation and antioxidant activity also have been covered.

Biochemistry of Antioxidants

Author : Kwestan Rafat Muhammad
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (861 download)

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Book Synopsis Biochemistry of Antioxidants by : Kwestan Rafat Muhammad

Download or read book Biochemistry of Antioxidants written by Kwestan Rafat Muhammad and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Antioxidant properties of green tea (GT) have been widely reported. The antioxidant capacity (AOC) of green tea was investigated to include the effect of infusion time over 24 hours. The AOC was measured by the FRAP, DPPH, TEAC, and CBA assays. It was proven according that after 2 hours of brewing, tea has higher AOC and Total phenolic content (TPC), these significantly decreases after 4 hours. GT has a high amount of polyphenols with potent AOC. However, interactions between polyphenols and food matrix may decrease their potential benefit. The objective of this experiment was to test the hypothesis that the addition of milk (full fat, semi-skimmed, and skimmed) may affect the phenolic content and AOC was measured. The results indicated the plain GT had highest activity; then tea with FFM had a significantly higher amount of AO than others. Plant extracts possess health promoting properties. The objective of this study was to determine the TPC and AOA of different concentrations of spice extracts (fennel, clove, cardamom, cinnamon, ginger, anise, and black pepper) with DPPH, TEAC and Rancimat methods. At low concentration, black pepper had a highest activity but at high concentration, ginger showed the highest activity among the extracts. The TPC for spice extract was greater for anise. Results provided evidence that the studied spices may be used as a natural AO. In recent decades, saliva has emerged as a new way to diagnose and investigate basic health problems. In this study, salivary TPC and AOC were measured after consumption a single cup of green tea with and without of milk. In a healthy adult crossover design. The salivary AOC and TPC were measured before and after consumption up to 3 hours. Results indicated that milk decreased AOC of GT when compared with the control water. The activity reached peak 1 hour after ingestion and then decreased returning to the baseline. Results confirmed that saliva could be used as an easier and safer alternative to blood to assess AOA in humans.

Processing and Impact on Antioxidants in Beverages

Author : Victor R Preedy
Publisher : Elsevier
ISBN 13 : 0124046959
Total Pages : 337 pages
Book Rating : 4.1/5 (24 download)

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Book Synopsis Processing and Impact on Antioxidants in Beverages by : Victor R Preedy

Download or read book Processing and Impact on Antioxidants in Beverages written by Victor R Preedy and published by Elsevier. This book was released on 2014-04-05 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Processing and Impact on Antioxidants in Beverages presents information key to understanding how antioxidants change during production of beverages, how production options can be used to enhance antioxidant benefit, and how to determine the production process that will result in the optimum antioxidant benefit while retaining consumer acceptability. In the food industry, antioxidants are added to preserve the shelf life of foods and to prevent off-flavors from developing. These production-added components also contribute to the overall availability of essential nutrients for intake. Moreover, some production processes reduce the amount of naturally occurring antioxidants. Thus, in terms of food science, it is important to understand not only the physiological importance of antioxidants, but what they are, how much are in the different food ingredients, and how they are damaged or enhanced through the processing and packaging phases. This book specifically addresses the composition and characterization of antioxidants in coffee, green tea, soft drinks, beer, and wine. Processing techniques considered here include fermentation and aging, high-pressure homogenization, enzymatic debittering, and more. Lastly, the book considers several selective antioxidant assays, such as Oxygen Radical Absorbance Capacity (ORAC) and Trolox Equivalent Antioxidant Capacity (TEAC) assays. Provides insights into processing options for enhanced antioxidant bioavailability Presents correlation potentials for increased total antioxidant capacity Includes methods for the in situ or in-line monitoring of antioxidants to reduce industrial loss of antioxidants in beverages Proposes processing of concentrated fractions of antioxidants that can be added to foods

Potential Therapeutic Applications of Nano-antioxidants

Author : Sharda Sundaram Sanjay
Publisher : Springer Nature
ISBN 13 : 9811611432
Total Pages : 118 pages
Book Rating : 4.8/5 (116 download)

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Book Synopsis Potential Therapeutic Applications of Nano-antioxidants by : Sharda Sundaram Sanjay

Download or read book Potential Therapeutic Applications of Nano-antioxidants written by Sharda Sundaram Sanjay and published by Springer Nature. This book was released on 2021-08-27 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the nano-antioxidants and their potential therapeutic applications. The chapters start with basic information on free radicals and antioxidants, through natural antioxidants, mechanisms of their action, ending with the use of nano-antioxidants particularly its potential therapeutic applications. Nano-antioxidant therapy has a promising future that has to be explored. It is a bridge topic to connect the already existing literature with potential therapeutic highlights. This book is designated for students and researchers interested in Biochemistry, Chemistry, Physics, Food Science and nutrition, Pharmaceutical Science and Medicine. It would also be interesting to global audiences from human and animal nutrition to food preservation and packaging.

Lipid Oxidation in Food

Author : Allen J. St. Angelo
Publisher :
ISBN 13 :
Total Pages : 386 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Lipid Oxidation in Food by : Allen J. St. Angelo

Download or read book Lipid Oxidation in Food written by Allen J. St. Angelo and published by . This book was released on 1992 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developed from a symposium at the 202nd National Meeting of the ACS, New York City, August 1991, this volume contains 20 papers in the areas of mechanisms of free-radical processes, prevention of lipid oxidation, methodologies for assessing lipid oxidation products, and processing effects on lipid oxidation. Commodities covered include beef, pork, fresh and saltwater fish, peanuts, vegetable oils, and baby foods. Annotation copyright by Book News, Inc., Portland, OR

Measuring Oxidants and Oxidative Stress in Biological Systems

Author : Lawrence J. Berliner
Publisher : Springer Nature
ISBN 13 : 303047318X
Total Pages : 237 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Measuring Oxidants and Oxidative Stress in Biological Systems by : Lawrence J. Berliner

Download or read book Measuring Oxidants and Oxidative Stress in Biological Systems written by Lawrence J. Berliner and published by Springer Nature. This book was released on 2020-08-08 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the methods of analysis and determination of oxidants and oxidative stress in biological systems. Reviews and protocols on select methods of analysis of ROS, RNS, oxygen, redox status, and oxidative stress in biological systems are described in detail. It is an essential resource for both novices and experts in the field of oxidant and oxidative stress biology.