Başbülbül Özdemir G, Biyik HH. Isolation and Characterization of a Bacteriocin-Like Substance Produced by Geobacillus toebii Strain HBB-247.
Indian J Microbiol 2012;
52:104-8. [PMID:
23448995 PMCID:
PMC3298585 DOI:
10.1007/s12088-011-0227-x]
[Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Accepted: 09/02/2011] [Indexed: 10/17/2022] Open
Abstract
A total of 201 thermophilic bacteria isolated from various thermal spring, mud and soil were tested for their antibacterial activity. Among the mostly active isolates, Geobacillus toebii HBB-247 was further examined. Bacteriocin-like inhibitory substance (BLIS) produced by strain HBB-247 was found to be stable up to 60°C, sensitive to proteolytic enzymes and effective against Enterococcus faecalis, Listeria sp., E. avium, Clostridium pasteurianum, Cellulomonas fimi and some thermophilic strains isolated and identified in this study. As a result of Tricine-SDS-PAGE molecular weight of BLIS was estimated about 38 kDa. Production studies showed that G. toebii HBB-247 starts to produce antibacterial substance at early logarithmic phase of growth and maximum production was detected at the end of the logarithmic phase.
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