Fig. (3) SDS-PAGE electrophoresis of the fermentation supernatant of strains Streptomyces lunalinnaresii (strain 5), Streptomyces puniciscabei (strain 67), Streptomyces griseofuscus (strain 276), Streptomyces mashuensis (strain 326), positive control and Streptomyces lacticiproducens (strain 112). PC, Positive control. PM, Protein marker.