Isolation and characterization of halophilic Bacillus sp. BS3 able to produce pharmacologically important biosurfactants.

OBJECTIVE

To characterize the pharmacological importance of biosurfactants isolated from halophilic Bacillus sp BS3.

METHODS

Halophilic Bacillus sp. BS3 was isolated from solar salt works, identified by 16S rRNA sequencing and was used for screening their biosurfactant production. Characters of the biosurfactant and their anticancer activity were analyzed and performed in mammary epithelial carcinoma cell at different concentrations.

RESULTS

The biosurfactant were characterized by TLC, FTIR and GC-MS analysis and identified as lipopeptide type. GC-MS analysis revealed that, the biosurfactant had various compounds including 13-Docosenamide, (Z); Mannosamine, 9- and N,N,N',N'-tetramethyl. Surprisingly the antiviral activity was found against shrimp white spot syndrome virus (WSSV) by suppressing the viral replication and significantly raised shrimp survival (P<0.01). Anticancer activity performed in the mammary epithelial carcinoma cell at different concentrations of biosurfactants, among the various concentrations of biosurfactants such as 0.000 25, 0.002 5, 0.025, 0.25 and 2.5 μg, the 0.25 μg concentration suppressed the cells significantly (P<0.05) to 24.8%.

CONCLUSIONS

Based on the findings, the present study concluded that, there is a possibility to develop eco-friendly antimicrobial and anticancer drugs from the extremophilic origin.