Document Detail

Inactivation of calcium-dependent lactic acid bacteria phages by phosphates.
MedLine Citation:
PMID:  17612087     Owner:  NLM     Status:  MEDLINE    
The capacity of three phosphates to interrupt the lytic cycle of four specific autochthonal bacteriophages of lactic acid bacteria used as starters was assayed. The phosphates used (polyphosphates A and B and sodium tripolyphosphate-high solubility [TAS]) were selected on the basis of their capacity to sequester divalent cations, which are involved in the lytic cycle of certain bacteriophages. The assays were performed in culture media (deMan Rogosa Sharpe and Elliker broths) and reconstituted (10%, wt/vol) commercial skim milk to which phosphates had been added at concentrations of 0.1, 0.3, and 0.5% (wt/vol). Phosphate TAS was the most inhibitory one, since it was able to inhibit the lytic cycle of all bacteriophages studied, in both broths and milk. In broth, polyphosphates A and B inhibited the lytic cycle of only two bacteriophages at the maximal concentration used (0.5%), whereas in milk, they were not capable of maintaining the same inhibitory effect.
V B Suárez; M L Capra; M Rivera; J A Reinheimer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of food protection     Volume:  70     ISSN:  0362-028X     ISO Abbreviation:  J. Food Prot.     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-07-06     Completed Date:  2007-08-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7703944     Medline TA:  J Food Prot     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1518-22     Citation Subset:  IM    
Instituto de Lactología Industrial (INLAIN), Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, 3000 Santa Fe, Argentina.
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MeSH Terms
Bacteriophages / drug effects,  physiology*
Calcium / metabolism*
Disinfectants / pharmacology*
Dose-Response Relationship, Drug
Lactobacillus / growth & development,  virology*
Microbial Sensitivity Tests
Phosphates / pharmacology*
Reg. No./Substance:
0/Disinfectants; 0/Phosphates; 7440-70-2/Calcium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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