| Recovery of salmonellae following pH adjusted pre-enrichment of broiler carcasses treated with trisodium phosphate. | |
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MedLine Citation:
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PMID: 15782917 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Trisodium phosphate (TSP) has been reported to decrease the recovery of salmonellae from processed poultry carcasses. It has been suggested that the high pH and detergent-like properties of TSP solutions are responsible for the reduction in salmonellae recovery. This project was conducted to determine if controlling pH during salmonellae pre-enrichment alters the effect of TSP on salmonellae recovery. Carcasses were obtained from a commercial processing plant immediately after the final inside-outside carcass washer, prior to any other antimicrobial treatments, and before chilling. Carcasses were assigned to 1 of 4 treatment groups: (1) TSP and alkaline pre-enrichment, (2) TSP and neutral pre-enrichment, (3) non-TSP and alkaline pre-enrichment, 4) non-TSP and neutral pre-enrichment. Carcasses were placed into plastic bags with 500 mL of buffered peptone water (with or without pH adjustment) and shaken for 1 min. Preincubation pH of the rinsate was measured. Carcasses were incubated in the rinse at 37 degrees C for 24 h, and incidence of salmonellae was determined. The pH of the preincubation rinsate was 8.4 for the TSP alkaline pre-enrichment, 7.2 for the TSP neutral pre-enrichment, 8.6 for the non-TSP alkaline pre-enrichment, and 7.1 for the non-TSP neutral pre-enrichment. Salmonellae were detected from 40% of the TSP alkaline pre-enrichment carcasses, 44% of the TSP neutral pre-enrichment carcasses, 54% of the non-TSP alkaline pre-enrichment carcasses, and 38% of the non-TSP neutral pre-enrichment carcasses. Neither TSP treatment nor pre-enrichment pH adjustment significantly influenced carcass salmonellae detection. |
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Authors:
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D V Bourassa; D L Fletcher; R J Buhr; J A Cason; M E Berrang |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Poultry science Volume: 84 ISSN: 0032-5791 ISO Abbreviation: Poult. Sci. Publication Date: 2005 Mar |
Date Detail:
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Created Date: 2005-03-23 Completed Date: 2005-04-28 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0401150 Medline TA: Poult Sci Country: United States |
Other Details:
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Languages: eng Pagination: 475-8 Citation Subset: IM |
Affiliation:
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Department of Poultry Science, University of Georgia, Athens, Georgia 30602, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Chickens* Food Handling / methods* Food Microbiology* Hydrogen-Ion Concentration Meat* Phosphates / administration & dosage* Salmonella / classification, isolation & purification* |
| Chemical | |
Reg. No./Substance:
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0/Phosphates; 7632-05-5/sodium phosphate |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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