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Paper Information

Journal:   IRANIAN JOURNAL OF PUBLIC HEALTH   AUGUST 2014 , Volume 43 , Number SUPPLEMENT 2; Page(s) 21 To 21.
 
Paper: 

EVALUATION AND COMPARISION OF THE ANTIMIROBIAL EFFECT OF LACTOBACILLUS GASSERI ON SALMONELLA ENTERICA SEROTYPE ENTERTIDIS

 
 
Author(s):  BARZAVAR MOULOOD*, RAHIMIFARD NAHID
 
* FOOD SCIENCE AND TECHNOLOGY DEPT., PHARMACEUTICAL SCIENCE BRANCH, ISLAMIC AZAD UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

Background: Lactobacillus spp., as probiotic bacteria, are being increasingly studied for their inhibitory activity against pathogenic bacteria. There is some evidence that they are not effective against gram –negative bacteria. The objective of this study was to investigate the antagonistic activity of Lactobacillus gasseri (Lga C009) against resistant Salmonella enterica serotype Enteritidis (ATCC 13311).
Methods: Antimicrobial activity by using common bacteria causing gastroenteritis in children ( Salmonella enteric a serotype entertidis ATCC13311) were evaluated using three microbiological methods, Disk Diffusion Agar, Well Diffusion Agar and Agar spot test.
Results: The highest inhibitory effect achieved by Well Diffusion Agar with an inhibitory zone diameter of 0.2±0.7 mm and the minimum belonged to Agar spot test with an inhibitory zone diameter of 0.3±0.18 mm (P
<0.05). By comparison, above three methods, the well diffusion agar method was shown more sensitive than the other methods.
Conclusion: Using of lactobacillus bacteria in food can prevent of gastrointestinal infections and also, it can play a role of inhibitory effect on the common gastrointestinal microorganisms, particularly in elder person and children that is an important approach and strategic for human health.

 
Keyword(s): LACTOBACILLUS GASSERI, SALMONELLA, ANTIMICROBIAL ACTIVITY
 
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