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KMID : 0613820140240020161
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Journal of Life Science
2014 Volume.24 No. 2 p.161 ~ p.166
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Characteristics of Paenibacillus sp. BCNU 5016 as a Novel Probiotic
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Choi Hye-Jung
Kim Dong-Wan
Joo Woo-Hong
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Abstract
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We screened Paenibacillus sp. strains from Jeotgal, a Korean salted and fermented fish product, for use as a novel probiotic. Among these Paenibacillus sp. isolates, BCNU 5016 was a typical Paenibacillus sp. strain that showed gram-positive, gelatinase-negative, and urease negative activity. On the basis of 16S rDNA sequence comparisons, BCNU 5016 was most closely related phylogenetically to P. polymyxa. When Paenibacillus sp. BCNU 5016 was subjected to the acid tolerance test, this strain showed 91.89% survival after 3 h culture at pH 2.5. Paenibacillus sp. BCNU 5016 also showed excellent bile acid tolerance. Furthermore, its auto-aggregation, coaggregation, and hydrophobic capacities suggest that BCNU 5016 had the capacity to adhere well to the intestinal tract. We conclude that Paenibacillus sp. BCNU 5016 has excellent potential as a probiotic.
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KEYWORD
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Acid tolerance, bile acid tolerance, hydrophobic capacity, Paenibacillus sp., probiotic
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