Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1998-9-17
pubmed:abstractText
Cells of a strain of Lactobacillus lactis selected for ability to produce hydrogen peroxide were added to Trypticase soy broth (TSB) containing Escherichia coli O157:H7 to determine if L. lactis was antagonistic towards the E. coli during storage at 7 degrees C for 7 days. E. coli was enumerated on violet red bile agar. Three strains of E. coli O157:H7 (43894, 43890, and 35150) were evaluated. Control samples containing no L. lactis did not show significant declines in numbers of E. coli during the 7 days of storage. however, samples inoculated with at least 5.0 x 10(7) L. lactis per ml exhibited significant declines in numbers of E. coli after only 3 days of storage for all strains. Samples inoculated with fewer L. lactis displayed vary effects on E. coli O157:H7 depending on the strain E. coli O157:H7 strain 43894 appeared to be the most resistant to the antagonistic action of the L. lactis. Interaction experiments in the presence of catalase indicated that hydrogen peroxide was the main factor responsible for the inhibitory action produced by the lactobacilli. Raw chicken breast meat inoculated with E. coli O157:H7 strain 43894 plus the cells of L. lactis and stored at 5 degrees C exhibited declines in numbers of the pathogen, whereas those inoculated only with the E. coli exhibited no declines during storage at 5 degrees C.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0362-028X
pubmed:author
pubmed:issnType
Print
pubmed:volume
61
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
166-70
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Antagonistic action of cells of Lactobacillus lactis toward Escherichia coli O157:H7 on refrigerated raw chicken meat.
pubmed:affiliation
Department of Animal Science, Oklahoma State University, Stillwater, 74078-0425, USA.
pubmed:publicationType
Journal Article, Comparative Study