Document Detail

Biofilm formation by lactic acid bacteria and resistance to environmental stress.
MedLine Citation:
PMID:  19000615     Owner:  NLM     Status:  MEDLINE    
We investigated the formation of biofilms by 3 type strains of lactic acid bacteria (LAB), Lactobacillus plantarum, Lactobacillus brevis and Lactobacillus fructivorans, as representatives of LAB that cause food deterioration or contamination. Lactobacillus plantarum subsp. plantarum JCM1149 and Lactobacillus brevis JCM1059 appeared to adhere and accumulate on glass cover slips. Lactobacillus fructivorans JCM1117 cells made thin cellophane-like biofilms, and most of the biofilm cells became longer than the planktonic cells. We tested the resistance of biofilm and planktonic L. plantarum subsp. plantarum JCM1149 cells to acetic acid and ethanol, which strongly inhibit the growth of bacteria and are important in food preservation. The biofilm cells were more resistant than the planktonic cells and the surfaces of the treated planktonic cells were badly damaged, whereas those of the biofilm cells were only slightly damaged. We isolated 43 LAB from onions and the biofolm cells of an isolate, L. plantarum M606 also had high resistance. These results demonstrate the significance of studying biofilms of LAB in the food industry.
Hiromi Kubota; Shouko Senda; Nobuhiko Nomura; Hajime Tokuda; Hiroo Uchiyama
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of bioscience and bioengineering     Volume:  106     ISSN:  1347-4421     ISO Abbreviation:  J. Biosci. Bioeng.     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-11-12     Completed Date:  2009-03-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888800     Medline TA:  J Biosci Bioeng     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  381-6     Citation Subset:  IM    
Safety Science Research Laboratories, Kao Corporation, 2006 Akabane, Ichikai, Haga, Tochigi 321-3497, Japan.
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MeSH Terms
Acetic Acid / chemistry
Colony Count, Microbial
Ethanol / chemistry
Food Industry
Lactic Acid / metabolism*
Lactobacillus / metabolism*
Microscopy, Electron, Scanning
Onions / microbiology
Time Factors
Reg. No./Substance:
50-21-5/Lactic Acid; 64-17-5/Ethanol; 64-19-7/Acetic Acid

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