Document Detail

Synergistic antimicrobial effect of nisin and p-cymene on Salmonella enterica serovar Typhi in vitro and on ready-to-eat food.
MedLine Citation:
PMID:  20208367     Owner:  NLM     Status:  MEDLINE    
Foods contaminated with Salmonella enterica serovar Typhi are a major cause of typhoid fever, leading to public health problems and economic losses worldwide. Nisin and rho-cymene were tested in this study for their antimicrobial activity against S. Typhi at 4 degrees C and 37 degrees C. Nisin and rho-cymene, when used separately, did not inhibit the bacterium at either temperature. A synergistic antimicrobial effect between both compounds was observed when they were used simultaneously. This synergism was greater at 37 degrees C than at 4 degrees C. The lowest concentrations of nisin and rho-cymene required for complete inhibition of S. Typhi at 37 degrees C were 0.3 ppm and 1.5 ppm, respectively, and 0.3 ppm and 2.5 ppm at 4 degrees C. The potential of nisin and rho-cymene to control an S. Typhi population on ready-to-eat Thai-style pork sausage was also examined. The compounds were able to eliminate the contaminating bacterium with concentrations depending on the bacterial cell number on the food.
Pongsak Rattanachaikunsopon; Parichat Phumkhachorn
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Publication Detail:
Type:  Journal Article     Date:  2010-03-07
Journal Detail:
Title:  Bioscience, biotechnology, and biochemistry     Volume:  74     ISSN:  1347-6947     ISO Abbreviation:  Biosci. Biotechnol. Biochem.     Publication Date:  2010  
Date Detail:
Created Date:  2010-03-23     Completed Date:  2010-07-01     Revised Date:  2010-12-28    
Medline Journal Info:
Nlm Unique ID:  9205717     Medline TA:  Biosci Biotechnol Biochem     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  520-4     Citation Subset:  IM    
Department of Biological Science, Ubon Ratchathani University, Warin Chamrap, Ubon Ratchathani, Thailand.
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MeSH Terms
Anti-Bacterial Agents / pharmacology*
Drug Synergism
Fast Foods / microbiology*
Food Contamination / prevention & control*
Food Preservatives / pharmacology
Meat Products / microbiology
Monoterpenes / pharmacology*
Nisin / pharmacology*
Salmonella typhi / drug effects*
Typhoid Fever / prevention & control
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Food Preservatives; 0/Monoterpenes; 1414-45-5/Nisin; 99-87-6/4-cymene

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