Document Detail

Review of antimicrobial and antioxidative activities of chitosans in food.
MedLine Citation:
PMID:  20828484     Owner:  NLM     Status:  MEDLINE    
Interest in chitosan, a biodegradable, nontoxic, non-antigenic, and biocompatible biopolymer isolated from shellfish, arises from the fact that chitosans are reported to exhibit numerous health-related beneficial effects, including strong antimicrobial and antioxidative activities in foods. The extraordinary interest in the chemistry and application in agriculture, horticulture, environmental science, industry, microbiology, and medicine is attested by about 17,000 citations on this subject in the Scopus database. A special need exists to develop a better understanding of the role of chitosans in ameliorating foodborne illness. To contribute to this effort, this overview surveys and interprets our present knowledge of the chemistry and antimicrobial activities of chitosan in solution, as powders, and in edible films and coating against foodborne pathogens, spoilage bacteria, and pathogenic viruses and fungi in several food categories. These include produce, fruit juices, eggs and dairy, cereal, meat, and seafood products. Also covered are antimicrobial activities of chemically modified and nanochitosans, therapeutic properties, and possible mechanisms of the antimicrobial, antioxidative, and metal chelating effects. Further research is suggested in each of these categories. The widely scattered data on the multifaceted aspects of chitosan microbiology, summarized in the text and in 10 tables and 8 representative figures, suggest that low-molecular-weight chitosans at a pH below 6.0 presents optimal conditions for achieving desirable antimicrobial and antioxidative-preservative effects in liquid and solid foods. We are very hopeful that the described findings will be a valuable record and resource for further progress to improve microbial food safety and food quality.
Mendel Friedman; Vijay K Juneja
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Journal of food protection     Volume:  73     ISSN:  0362-028X     ISO Abbreviation:  J. Food Prot.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-09-10     Completed Date:  2010-11-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7703944     Medline TA:  J Food Prot     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1737-61     Citation Subset:  IM    
Produce Safety and Microbiology Research Unit, Western Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Albany, California 94710, USA.
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MeSH Terms
Anti-Bacterial Agents / analysis,  pharmacology*
Antioxidants / analysis,  pharmacology*
Chitosan / analysis,  pharmacology*
Consumer Product Safety
Food Microbiology
Food Preservation / methods*
Food Preservatives / analysis,  pharmacology*
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Antioxidants; 0/Food Preservatives; 9012-76-4/Chitosan

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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