Abstract
This study was carried out to perform genotoxicological safety evaluation of crude antifungal compounds produced by Bacillus subtilis SN7 (B. subtilis SN7) isolated from meju. Bacterial reverse mutation assay with Salmonella typhimurium TA98, TA100, TA1535, and TA1537 or Escherichia coli WP2uvrA in the presence and absence of the S9 metabolic activation system was carried out, and the crude antifungal compounds produced by B. subtilis SN7 showed no significant increase in the number of revertant colonies. In the chromosomal aberration tests using Chinese hamster lung (CHL) cells, sample treatment groups showed no increase in the frequency of chromosome aberrations compared to the negative control group. Furthermore, in the micronucleus formation test, the crude antifungal compounds showed no significance increase in the frequency of polychromatic erythrocytes with micronuclei. These results suggest that the crude antifungal compounds produced by B. subtilis SN7 isolated from meju showed no harmful genotoxic effects.
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