Tyrosinase production by two Streptomyces isolates

Abstract

The research aims to isolate and identify best two Streptomyces spp for tyrosinase production from Egyptian and Libyan soils. Optimization of tyrosinase production by two Streptomyces species, identified as Streptomyces iakyrus and Streptomyces echinatus was studied. The optimum incubation period, temperature and initial pH of medium for organism growth and enzyme yield for Streptomyces iakyrus were around 4 days, 30oC and 7.0, respectively, while for Streptomyces echinatus were 5 days, 30oC and 8.0, respectively. The maximum tyrosinase production was observed in a medium containing glycerol and tyrosine as carbon source and nitrogen source for the two identified Streptomyces species.