Document Detail


Synergistic effect of thymol and carvacrol combined with chelators and organic acids against Salmonella Typhimurium.
MedLine Citation:
PMID:  17685346     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To identify synergistic combinations of different food additives, the antimicrobial effects of thymol and carvacrol against Salmonella Typhimurium were assessed alone and in combination with various other preservatives including EDTA, acetic acid, lactic acid, and citric acid. Overall, growth of Salmonella Typhimurium was significantly inhibited in Mueller-Hinton broth containing thymol, carvacrol, EDTA, acetic acid, lactic acid, or citric acid at concentrations of 400 mg/liter, 400 microl/liter, 300 mg/liter, 0.2% (vol/vol), 0.2% (vol/vol), and 0.2% (wt/vol), respectively. The combination of different antimicrobials such as thymol or carvacrol with EDTA, thymol or carvacrol with acetic acid, and thymol or carvacrol with citric acid all resulted in significantly reduced populations of Salmonella Typhimurium. In samples treated with combinations, these antimicrobials had synergistic effects compared with samples treated with thymol, carvacrol, EDTA, acetic acid, or citric acid alone. However, the combined use of lactic acid with thymol or carvacrol did not produce a synergistic effect against Salmonella Typhimurium. Thus, some chelators or organic acids can be used as food preservatives in combination with thymol and carvacrol to reduce the concentrations needed to produce an adequate antimicrobial effect.
Authors:
Feng Zhou; Baoping Ji; Hong Zhang; Hui Jiang; Zhiwei Yang; Jingjing Li; Jihai Li; Yali Ren; Wenjie Yan
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of food protection     Volume:  70     ISSN:  0362-028X     ISO Abbreviation:  J. Food Prot.     Publication Date:  2007 Jul 
Date Detail:
Created Date:  2007-08-09     Completed Date:  2007-09-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7703944     Medline TA:  J Food Prot     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1704-9     Citation Subset:  IM    
Affiliation:
College of Food Science and Nutritional Engineering, China Agricultural University, 17 Qinghua Donglu, Haidian District, Beijing, China.
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MeSH Terms
Descriptor/Qualifier:
Acetic Acid / pharmacology
Citric Acid / pharmacology
Colony Count, Microbial
Dose-Response Relationship, Drug
Drug Synergism
Edetic Acid / pharmacology
Food Additives / pharmacology*
Food Preservation / methods*
Food Preservatives / pharmacology*
Lactic Acid / pharmacology
Monoterpenes / pharmacology*
Salmonella typhimurium / drug effects*,  growth & development
Thymol / pharmacology*
Chemical
Reg. No./Substance:
0/Food Additives; 0/Food Preservatives; 0/Monoterpenes; 499-75-2/carvacrol; 50-21-5/Lactic Acid; 60-00-4/Edetic Acid; 64-19-7/Acetic Acid; 77-92-9/Citric Acid; 89-83-8/Thymol

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


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