| Escherichia coli O157:H7 Populations in Ruminants Can Be Reduced by Orange Peel Product Feeding. | |
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MedLine Citation:
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PMID: 22054194 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Foodborne pathogenic bacteria such as Escherichia coli O157:H7 are threats to the safety of beef. Citrus peel and dried orange pulp are by-products from citrus juice production that have natural antimicrobial effects and are often incorporated into least-cost ration formulations for beef and dairy cattle. This study was designed to determine if orange peel and pulp affected E. coli O157:H7 populations in vivo. Sheep (n = 24) were fed a cracked corn grain-based diet that was supplemented with a 50-50 mixture of dried orange pellet and fresh orange peel to achieve a final concentration (dry matter basis, wt/wt) of 0, 5, or 10% pelleted orange peel (OP) for 10 days. Sheep were artificially inoculated with 10(10) CFU of E. coli O157:H7 by oral dosing. Fecal shedding of E. coli O157:H7 was measured daily for 5 days after inoculation, after which all animals were humanely euthanized. At 96 h postinoculation, E. coli O157:H7 shedding was reduced (P < 0.05) in sheep fed 10% OP. Populations of inoculated E. coli O157:H7 were reduced by OP treatment throughout the gastrointestinal tract; however, this reduction reached significant levels in the rumen (P < 0.05) of sheep fed 10% OP diets. Cecal and rectal populations of E. coli O157:H7 were reduced (P < 0.05) by inclusion of both 5 and 10% OP diets. Our results demonstrate that orange peel products can be used as a preharvest intervention strategy as part of an integrated pathogen reduction scheme. |
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Authors:
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Todd R Callaway; Jeffery A Carroll; John D Arthington; Tom S Edrington; Michelle L Rossman; Mandy A Carr; Nathan A Krueger; Steven C Ricke; Phil Crandall; David J Nisbet |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of food protection Volume: 74 ISSN: 1944-9097 ISO Abbreviation: J. Food Prot. Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-07 Completed Date: - Revised Date: - |
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: 1917-21 Citation Subset: IM |
Affiliation:
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Food and Feed Safety Research Unit, U.S. Department of Agriculture, Agricultural Research Service, College Station, Texas 77845, USA. todd.callaway@ars.usda.gov. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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