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KMID : 0613820120220091194
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Journal of Life Science
2012 Volume.22 No. 9 p.1194 ~ p.1200
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Probiotic Potential of Pediococcus pentosaceus BCNU 9070
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Shin Hwa-Jin
Choi Hye-Jung
Kim Dong-Wan
Ahn Cheol-Soo
Lee Young-Geun
Jeong Young-Kee
Joo Woo-Hong
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Abstract
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Lactic acid bacteria are generally recognized as beneficial probiotic organisms. Recent studies revealed that the potential of probiotic strains was essentially dependent on the bacterial-binding and adhesion capabilities to gut epithelial cells and the hydrophobicity of the cell surface. In this study, we screened some indigenous lactic acid bacteria from Kimchi and selected one lactic acid bacterium as a potential probiotic based on its cell surface hydrophobicity. Analysis of the 16S rRNA gene sequences of probiotic isolates indicated that the selected isolate (BCNU 9070 strain) was a member of Pediococcus pentosaceus. P. pentosaceus BCNU 9070 showed resistance to bile acids and acidic pH. The P. pentosaceus BCNU 9070 strain also inhibited the cell growth of six food-borne pathogens including Listeria monocytogenes and Shigella sonnei. In addition, the P. pentosaceus BCNU 9070 strain expressed bile salt hydrolase activity and showed an ability to assimilate cholesterol in vitro. On the basis of these results, P. pentosaceus BCNU 9070 is considered to have probiotic potential for applications in functional foodstuffs.
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KEYWORD
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Cholesterol assimilation, food-borne pathogens, hydrophobicity, Pediococcus pentosaceus, probiotics
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