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KMID : 0545119940040020151
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Journal of Microbiology and Biotechnology
1994 Volume.4 No. 2 p.151 ~ p.154
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Selection of Human-Originated Lactobacillus acidophilus For Production of Probiotics
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KIM, WANG-JUNE
HONG, SEOK-SAN/CHA, SEONG-KWAN
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Abstract
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Lactobacillus acidophilus KFRI 233, a strain isolated from human, was selected as a candidate for probiotics due to its excellent growth in MRS broth where no special anaerobic condition is required. Both simultaneous and deferred agar diffusion assays exhibited Lb. acidophilus KFRI 233 to possess an antagonistic effect against Clostridium perfringens. Its antagonistic effect was pH dependent Associative culture of KFRI 233 and Cl. perfringens in broth resulted in maximum 94.04% inhibition of Cl perfringens. β-Galactosidase activity of KFRI 233 was higher than other tested strains that are sold as commercial probiotics. Survival of KFRI 233 in pasteurized skim milk (4℃) and Sherbet mix (-15℃) after 7 days of storage were 71.9 and 105.5%, respectively.
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