Contents Vitamin E: Chemistry and Biochemistry Introduction Chemistry of Vitamin E Biochemistry of Vitamin E Nutrition and Health Implications of Vitamin E Introduction Vitamin E Nutrition Health Impacts of Vitamin E Oxidation and the Role of Vitamin E as a Antioxidant in Foods Introduction Lipid Oxidation Antioxidants Antioxidant Accidents of Vitamin E Tocopherol Interactions Dietary Vitamin E Supplementation for Improvement of Oxidative Stability of Muscle Foods, Milk, and Eggs Introduction Broilers Turkey Pork Beef Stability of Vitamin E During Food Processing Introduction Edible Oils Vitamin E Stability During Processing Effects of Food Preparation and Storage on the Vitamin E Content of Food Introduction Effects of Food Preparation on the Vitamin E Content of Food Storage and Its Effects on the Stability of Vitamin E Analysis of Tocopherols and Tocotrienols in Foods Historical Aspects Gas Chromatography High-Performance Liquid Chromatography Analytical Applications Preparative Procedures for the Tocopherols and Tocotrienols Additional Analytical Approaches to Vitamin E and Other Fat-Soluble Vitamins Regulatory and Compendium Methods Food Composition - Vitamin E Introduction Food Composition Databases and Vitamin E Vitamin E Food Composition Tables -Tocopherol Levels in Foods Quality Evaluation of Analytical Data Index
Introduction to Food Chemistry, O.R. Fennema, S. Damodaran, and K.L. Parkin Major Food Components Water and Ice, D.S. Reid and O.R. Fennema Carbohydrates, J.N. BeMiller and K.L. Huber Lipids, D.J. McClements and E.A. Decker Amino Acids, Peptides, and Proteins, S. Damodaran Enzymes, K.L. Parkin Minor Food Components Vitamins, J.F. Gregory III Minerals, D.D. Miller Colorants, S.J. Schwartz, J.H. von Elbe, and M.M. Giusti Flavors, R.C. Lindsay Food Additives, R.C. Lindsay Bioactive Substances: Nutraceuticals and Toxicants, C.T. Ho, M.M. Rafi, and G. Ghai Food Systems Dispersed Systems: Basic Considerations, P. Walstra and T. van Vliet Physical and Chemical Interactions of Components in Food Systems, Z.E. Sikorski, J. Pokorny, and S. Damodaran Characteristics of Milk, H.E. Swaisgood Postmortem Physiology of Edible Muscle Tissues, G. Strasburg, Y.L. Xiong, and W. Chiang Postharvest Physiology of Edible Plant Tissues, J.K. Brecht, M.A. Ritenour, N.F. Haard, and G.W. Chism Impact of Biotechnology on Food Supply and Quality, M. Newell-McGloughlin Appendices Appendix A: International System of Units (SI), The Modernized Metric System Appendix B: Conversion Factors (Non-SI Units to SI Units) Appendix C: Greek Alphabet Appendix D: Calculating Relative Polarities of Compounds Using Fragmental Constant Approach to Predict Log P Values. Index
This comprehensive text on food chemistry and metabolism surveys molecular genetics. It is a narrative survey of basic food chemistry, basic nutritional research, food composition, food resource biochemistry and certain health implications of food constituents involved in both normal and abnormal nutritional conditions.
Providing a thorough introduction to the core areas of food science specified by the Institute of Food Technologists, Introduction to Food Chemistry focuses on principles rather than commodities and balances facts with explanations. The text covers the major areas of food science, including food chemistry, food analysis and methods for quality assu
3-Monochloropropane-1,2-diol (3-MCPD) is a heat-induced food contaminant that has been widely investigated for decades. This paper presents an overview of current knowledge about 3-MCPD, including its formation routes, occurrence in various foodstuffs, analytical approach, toxicological aspects, and future research perspectives. So far, 3-MCPD was determined in its free and bound form in thermally treated foods, edible oils and fats, and infant foods including human breast milk. Contaminants in infant foods and human breast milk were highlighted in this paper as a serious problem as they can pose a potential hazard for infants. The analytical approach of 3-MCPD determination has been modified for over a decade. Nowadays, the method based on determining the derivative of this compound by using gas chromatography and mass spectrometry is widely used. However, there is still a big need for developing new methods that would produce repeatable results. Some of the toxicologic aspects associated with 3-MCPD still remain unknown. A number of studies on the carcinogenicity and genotoxicity of 3-MCPD were carried out on rodents; however, no clinical studies on humans have been reported so far. Moreover, both detrimental effect on kidneys and antifertility activity have been widely reported. The knowledge of 3-MCPD absorption into body fluids and tissues and its metabolic pathways is based on sometimes conflicting data derived from different studies. In conclusion, although a lot of research has been carried out on 3-MCPD, there is still a need for further research in this area.
Mechanism and theory in food chemistry / , Mechanism and theory in food chemistry / , کتابخانه دیجیتالی دانشگاه علوم پزشکی و خدمات درمانی شهید بهشتی
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTJournal of Agricultural and Food ChemistryCite this: Anal. Chem. 1993, 65, 8, 416APublication Date (Print):April 15, 1993Publication History Published online31 May 2012Published inissue 15 April 1993https://doi.org/10.1021/ac00056a738RIGHTS & PERMISSIONSArticle Views144Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (87 KB) Get e-Alerts Get e-Alerts
The Food Chemistry Laboratory illustrates chemical and physical properties and behavior of food constituents and additives. It is filled with guides and experiments, and its unique design allows you to structure individualized laboratories. Directions for independent research in food chemistry are also included.UNDERSTAND PHYSICAL AND C
ADVERTISEMENT RETURN TO ISSUEEditorialNEXTSustainability and Agricultural and Food ChemistryJames N. SeiberCite this: J. Agric. Food Chem. 2011, 59, 1, 1–21Publication Date (Web):January 5, 2011Publication History Published online5 January 2011Published inissue 12 January 2011https://doi.org/10.1021/jf1046078Copyright © 2011 American Chemical SocietyRequest reuse permissions This publication is free to access through this site. Learn MoreArticle Views11260Altmetric-Citations43LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (2 MB) Get e-AlertscloseSUBJECTS:Agriculture,Energy,Food,Sustainability Get e-Alerts
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAgricultural and Food Chemistry.F. C. BlanckCite this: Ind. Eng. Chem. 1951, 43, 3, 564–576Publication Date (Print):March 1, 1951Publication History Published online1 May 2002Published inissue 1 March 1951https://pubs.acs.org/doi/10.1021/ie50495a014https://doi.org/10.1021/ie50495a014research-articleACS PublicationsRequest reuse permissionsArticle Views123Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts
This perspective is designed to summarize the standards that authors of manuscripts submitted to the Journal of Agricultural and Food Chemistry are expected to follow in establishing the structures of either new or unknown compounds identified in the course of a study. It is especially important that the molecular formulas of new compounds be determined by either high-resolution mass spectrometry or combustion analysis. All relevant physical, spectroscopic, and spectrometric data should also be reported, so that other research workers have criteria for comparison with compounds that may be isolated in the future. In the case of flavor and aroma constituents, it is not sufficient to depend upon mass spectrometric identifications based solely on comparison with commercial databases. Mass spectra and retention indices on GC stationary phases of different polarities must be determined and the results compared to data for reference compounds and with commercial standards, when available. If geometric or positional isomers may be present, or for chiral compounds, the retention indices of all isomers or enantiomers must be determined. Odor properties or odor thresholds determined by GC-olfactometry may also serve as appropriate tools for compound identification. Adherence to these standards will ensure that processing of manuscripts proceeds expeditiously and that the high standards of the Journal are maintained.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Journal of Agricultural and Food ChemistryCite this: Anal. Chem. 1972, 44, 6, 21APublication Date (Print):May 1, 1972Publication History Published online23 May 2012Published inissue 1 May 1972https://doi.org/10.1021/ac60314a716RIGHTS & PERMISSIONSArticle Views16Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (112 KB) Get e-Alerts Get e-Alerts
First published in 1984, and now in its 6th edition, this book has become the classic text on food chemistry around the world. The bulk components – carbohydrates, proteins, fats, minerals and water, and the trace components – colours, flavours, vitamins and preservatives, as well as food-borne toxins, allergens, pesticide residues and other undesirables all receive detailed consideration. Besides being extensively rewritten and updated a new chapter on enzymes has been included. At every stage attention is drawn to the links between the chemical components of food and their health and nutritional significance. Features include:"Special Topics" section at the end of each chapter for specialist readers and advanced students; an exhaustive index and the structural formulae of over 500 food components; comprehensive listings of recent, relevant review articles and recommended books for further reading; frequent references to wider issues eg the evolutionary significance of lactose intolerance, fava bean consumption in relation to malaria and the legislative status of food additives around the world. Food: The Chemistry of its Components will be of particular interest to students and teachers of food science, nutrition and applied chemistry in universities, colleges and schools. Its accessible style ensures that it will be invaluable to anyone with an interest in food issues.
Abstract The most important chemical reactions during the process of soybean protein foods are the intermolecular reactions among the residues exposed on the surface of the protein molecules through the denaturation process. In native soybean protein molecules, most amino acid residues responsible for the reactions—such as cysteine (‐SH), cystine (S‐S), and hydrophobic amino acid residues—are buried in the inside region of the molecule, inaccessible to water. These residues become reactable with each other through the exposure from the inside by heat denaturation during processing. The unique textures of soybean protein foods, such as tofu, kori‐tofu, yuba, and texturized products produced by extruder, etc., are the results of both the intermolecular interchange reaction between the exposed ‐SH and S‐S groups and the intermolecular hydrophobic reaction among the exposed hydrophobic amino acid residues. The exposure of amino acid residues is also important for the hydrolysis of soybean proteins by enzymes, through which soy sauce is produced, because the cleavage of the peptide bonds is carried out after binding between the active sites of the enzymes and the enzyme‐specific amino acid residues exposed through denaturation. These facts indicate the importance of the three‐dimensional structures of soybean protein molecules in the technology of soybean protein foods. Recently great progress has been made in the manufacturing techniques of soybean protein foods, such as soy milk, tofu, abura‐age, textured protein products, and soy sauce. The quality of soy milk and tofu was very much improved by controlling the action of the biologically active substances such as lipoxygenases and β‐glucosidases which are contained in soybeans and responsible for the production of off‐flavor. A new abura‐age, whose texture does not deteriorate during frozen storage or drying, was developed by using soybean protein isolate and oil as materials. A new type of textured protein product was also developed: a deep‐fat‐fried nugget with unique texture and flavor. This product is textured through a twin‐type extruder. For soy sauce manufacturing new biotechnology has been applied on the pilot‐plant scale. This is a system of continuous fermentation through bioreactors with the immobilized whole cells of microorganisms, by which the fermentation term is shortened strikingly. New and important discoveries were made on the nutrition of soybean proteins. According to recent experiments using human beings, the amino acid score of soybean proteins is 100 for persons more than 2 years old, indicating that the nutritive value of soybean proteins is equal to animal proteins. Further, it was elucidated that soybean proteins have cholesterol‐lowering action. A discussion is presented on the future of the soybean protein foods.
With an emphasis on food components, you'll find entire chapters devoted to water, proteins, enzymes, lipids, carbohydrates, colors and flavors. Each protocol includes detailed step-by-step annotated instructions as well as comprehensive lists of required materials, critical parameters, complete recipes, allotted time, and safety considerations. Accompanying troubleshooting tips and pointers from the author, an expert in that methodology, will virtually assure your success. All protocols, ranging from fundamental to cutting edge, are contributed by top researchers in their respective fields representing leading food science institutions and food analytical laboratories from around the world.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDehydrated Foods, Chemistry of Browning Reactions in Model SystemsJ. E. HodgeCite this: J. Agric. Food Chem. 1953, 1, 15, 928–943Publication Date (Print):October 1, 1953Publication History Published online1 May 2002Published inissue 1 October 1953https://pubs.acs.org/doi/10.1021/jf60015a004https://doi.org/10.1021/jf60015a004research-articleACS PublicationsRequest reuse permissionsArticle Views8725Altmetric-Citations1621LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Exploring the structure and physical and chemical properties of solutions, dispersions, soft solids, fats, and cellular systems, Physical Chemistry of Foods describes the physiochemical principles of the reactions and conversions that occur during the manufacture, handling, and storage of foods. Coverage progresses from aspects of thermodynamics, b