The Effect of different Nitrogen Sources in the growth and antibiotic production in Streptomyces

Abstract

A solid culture media containing different Nitrogen sources were used for to study their effects on the growth and antibiotic production of selected strains of Streptomyces spp.Results indicates that the casein hydrolysate was the best nitrogen source for antibiotic production in most of the tested Streptomyces strains, the second best nitrogen source was the amino acid L-Asparagine ; then NF4No3 , the latter better than the Ammonium sulfate.Results also indicated that None of the tested Streptomyces strains were capable to produce antibiotics in the medium containing urea as the sole nitrogen source.