| Changes in microbial flora of Pacific oysters (Crassostrea gigas) during refrigerated storage and its shelf-life extension by chitosan. | |
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MedLine Citation:
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PMID: 19339074 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Changes in microbial flora of Pacific oysters (Crassostrea gigas) during storage at 5+/-1 degrees C were analyzed and the antimicrobial activity of chitosan was studied to identify its potential in shelf-life extension. The dominant microorganisms were found to be Pseudomonas (22%) and Vibrionaceae (20%) in raw oysters. During storage, proportion of Pseudomonas increased significantly and reached 73% at the end of storage, while Vibrionaceae preserved a level of approximate 20%. Wide-spectrum antibacterial property of chitosan against the bacteria isolated from oysters was discovered, and chitosan concentration of 5.0 g/L was eventually determined for application in oyster preservation. Based on microbiological analysis, biochemical indices determination and sensory evaluation, shelf-life of oysters stored at 5+/-1 degrees C was determined. Data showed that chitosan treatment extended the shelf-life of oysters from 8-9 days to 14-15 days. |
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Authors:
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Rong Cao; Chang-Hu Xue; Qi Liu |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-03-14 |
Journal Detail:
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Title: International journal of food microbiology Volume: 131 ISSN: 1879-3460 ISO Abbreviation: Int. J. Food Microbiol. Publication Date: 2009 May |
Date Detail:
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Created Date: 2009-04-20 Completed Date: 2009-08-04 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8412849 Medline TA: Int J Food Microbiol Country: Netherlands |
Other Details:
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Languages: eng Pagination: 272-6 Citation Subset: IM |
Affiliation:
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College of Food Science and Engineering, Ocean university of China, Qingdao, Shandong Province 266003, PR China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Anti-Bacterial Agents / pharmacology* Bacteria / classification, drug effects*, isolation & purification Chitosan / pharmacology* Cold Temperature Food Handling Food Microbiology* Food Preservation* Ostreidae / microbiology* Pseudomonas / classification, drug effects, isolation & purification Refrigeration Shellfish / microbiology* Time Factors Vibrionaceae / classification, drug effects, isolation & purification |
| Chemical | |
Reg. No./Substance:
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0/Anti-Bacterial Agents; 9012-76-4/Chitosan |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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