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Purification and characterization of plantaricin Y, a novel bacteriocin produced by Lactobacillus plantarum 510

Archives of Microbiology, ISSN: 1432-072X, Vol: 196, Issue: 3, Page: 193-199
2014
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Article Description

Lactobacillus plantarum 510, previously isolated from a koshu vineyard in Japan, was found to produce a bacteriocin-like inhibitory substance which was purified and characterized. Mass spectrometry analysis showed that the mass of this bacteriocin is 4,296.65 Da. A partial sequence, NH- SSSLLNTAWRKFG, was obtained by N-terminal amino acid sequence analysis. A BLAST search revealed that this is a unique sequence; this peptide is thus a novel bacteriocin produced by Lactobacillus plantarum 510 and was termed plantaricin Y. Plantaricin Y shows strong inhibitory activity against Listeria monocytogenes BCRC 14845, but no activity against other pathogens tested. Bacteriocin activity decreased slightly after autoclaving (121 °C for 15 min), but was completely inactivated by protease K. Furthermore, trypsin-digested bacteriocin product fragments retained activity against L. monocytogenes BCRC 14845 and exhibited a different inhibitory spectrum. © Springer-Verlag 2014.

Bibliographic Details

Chen, Yi-sheng; Wang, Yan-chong; Chow, Yiou-shing; Yanagida, Fujitoshi; Liao, Chen-chung; Chiu, Chi-ming

Springer Science and Business Media LLC

Immunology and Microbiology; Biochemistry, Genetics and Molecular Biology

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