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KMID : 0613820030130040535
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Journal of Life Science
2003 Volume.13 No. 4 p.535 ~ p.540
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Isolation and Identification of the Antagonistic Microorganisms Against Streptococous spp. Causing Dental Caries in Korean Soy Sauce
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Um Soo-Jung
Lee Yeo-Jin
Kim Jin-Rack
Kim Sang-Dal
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Abstract
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The antagonistic microorganisms against Streptococcus sanguis, S. salivarius and S. mutans causing the dental caries of oral diseases were isolated from Korean traditional soy sauce. Twenty five strains were isolated by pairing culture, paper disc culture and dual culture methods. The isolate NG 06 strain was observed with various cultural and physiological test, and Biologⓡ Bacterial Identification System. The strain was identified as Bacillus racemilacticus. The isolate NG 16 strain was confirmed to Gram-positive, rods, endospore production, utilization of melibiose, casein hydrolysis and starch hydrolysis. Also the second strain NG 16 was identified as B. amyloliquefaciens.
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KEYWORD
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antagonistic bacteria, dental caries, Korea soy sauce
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