| Inactivation of Clostridium botulinum type A spores by high-pressure processing at elevated temperatures. | |
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MedLine Citation:
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PMID: 12929826 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effects of high-pressure treatments at various temperature-time combinations on the inactivation of spores of Clostridium botulinum type A strains 62-A and BS-A in phosphate buffer (0.067 M, pH 7.0) and in a crabmeat blend were investigated. The log unit reduction of strain 62-A spores increased significantly as the processing pressure increased from 417 to 827 MPa (from 60,000 to 120,000 lb/in2) at 75 degrees C. The reduction of BS-A and 62-A spores in either medium increased as processing temperatures increased from 60 to 75 degrees C and processing times increased from 5 to 15 or 20 min at a maximum pressure of 827 MPa. Approximately 2- and 3-log reductions of BS-A and 62-A spores, respectively, in phosphate buffer were obtained at the maximum pressure-maximum temperature combination of 827 MPa and 75 degrees C for a processing time of 20 min. Processing for 15 min at the maximum pressure-maximum temperature combination resulted in maximum reductions of 3.2 and 2.7 log units for BS-A and 62-A spores, respectively, in the crabmeat blend. Results obtained in this study indicate that the crabmeat blend did not protect BS-A and 62-A spores against inactivation by high-pressure processing. |
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Authors:
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N R Reddy; H M Solomon; R C Tetzloff; E J Rhodehamel |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Journal of food protection Volume: 66 ISSN: 0362-028X ISO Abbreviation: J. Food Prot. Publication Date: 2003 Aug |
Date Detail:
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Created Date: 2003-08-21 Completed Date: 2004-01-16 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 7703944 Medline TA: J Food Prot Country: United States |
Other Details:
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Languages: eng Pagination: 1402-7 Citation Subset: IM |
Affiliation:
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U.S. Food and Drug Administration, National Center for Food Safety and Technology, 6502 South Archer Road, Summit-Argo, Illinois 60501, USA. rukma.reddy@cfsan.fda.gov |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Brachyura Clostridium botulinum / growth & development, physiology* Consumer Product Safety Food Microbiology Food Preservation / methods Hot Temperature* Pressure Seafood / microbiology* Spores, Bacterial / growth & development |
| Grant Support | |
ID/Acronym/Agency:
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FD-000431/FD/FDA HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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