Document Detail

Influence of milk components on the injury, repair of injury, and death of Salmonella anatum cells subjected to freezing and thawing.
MedLine Citation:
PMID:  4762393     Owner:  NLM     Status:  MEDLINE    
Fast freezing and slow thawing Salmonella anatum cells in various milk components inactivated from 20 to 98% of the cells and damaged 40 to 90% of the cells surviving the treatments. Injured cells failed to form colonies on a selective medium (xylose-lysine-peptone agar with 0.2% sodium deoxycholate) but did form colonies on a nonselective plating medium (xylose-lysine-peptone agar). The major milk components-lactose, milk salts, casein, and whey proteins-influenced the extent of injury, repair of injury, and death. The percentages of cells injured and inactivated were decreased by the presence of any milk components except whey proteins. Also, repair of injury was promoted by the presence of each milk component except whey proteins, which in contrast inhibited repair. Phosphate was the most influential milk salts component that protected the cells and promoted repair of injury. These individual milk components may have decreased the extent of freezing-induced death and cellular damage by stabilizing the S. anatum cell envelope.
D W Janssen; F F Busta
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied microbiology     Volume:  26     ISSN:  0003-6919     ISO Abbreviation:  Appl Microbiol     Publication Date:  1973 Nov 
Date Detail:
Created Date:  1974-02-12     Completed Date:  1974-02-12     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7605802     Medline TA:  Appl Microbiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  725-32     Citation Subset:  IM    
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MeSH Terms
Caseins / metabolism
Cell Survival
Lactalbumin / metabolism
Lactose / metabolism
Milk Proteins / metabolism,  pharmacology*
Salmonella / drug effects,  growth & development*,  metabolism
Serum Albumin, Bovine / metabolism
Time Factors
Reg. No./Substance:
0/Caseins; 0/Milk Proteins; 0/Serum Albumin, Bovine; 63-42-3/Lactose; 9013-90-5/Lactalbumin

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