| Polyphenol oxidase and peroxidase in fruits and vegetables. | |
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MedLine Citation:
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PMID: 6794984 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Polyphenol oxidases and peroxidases are among the most studied enzymes in fruits and vegetables. Owing to the deleterious effects of discoloration and off-flavor formation induced by their actions, these enzymes have not ceased to be a matter of concern to food technologists, while their versatility as catalyst and their diversity as protein present a challenge to the biochemist. This article gives an account on the present state of knowledge in this field. The occurrence of polyphenol oxidases and peroxidases in food and food raw materials, and their role and importance in food processing are briefly outlined. Results of biochemical research including catalytic properties, substrate specificity, susceptibility towards pH and temperature, action of inhibitors, isolation, purification, and characteristics of the enzymes are given, with special emphasis on recent achievements based on high resolution separation and isoenzyme techniques. Finally, the behavior of polyphenol oxidase and peroxidase in selected major groups of fruits and vegetables is discussed. Some contradictions found in the literature are pointed out and some questions that have not been given the necessary attention by researchers so far are mentioned. |
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Authors:
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L Vámos-Vigyázó |
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Publication Detail:
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Type: Journal Article; Review |
Journal Detail:
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Title: Critical reviews in food science and nutrition Volume: 15 ISSN: 1040-8398 ISO Abbreviation: Crit Rev Food Sci Nutr Publication Date: 1981 |
Date Detail:
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Created Date: 1982-01-09 Completed Date: 1982-01-09 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 8914818 Medline TA: Crit Rev Food Sci Nutr Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 49-127 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Basidiomycota
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enzymology Catechol Oxidase / antagonists & inhibitors, isolation & purification, metabolism* Food Handling Fruit* Hot Temperature Hydrogen-Ion Concentration Isoenzymes / metabolism Peroxidases / antagonists & inhibitors, isolation & purification, metabolism* Temperature Vegetables* |
| Chemical | |
Reg. No./Substance:
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0/Isoenzymes; EC 1.10.3.1/Catechol Oxidase; EC 1.11.1.-/Peroxidases |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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