Fig. 4From: Production, partial optimization and characterization of keratinase enzyme by Arthrobacter sp. NFH5 isolated from soil samplesEffect of organic nitrogen source on keratinase production by Arthrobacter sp. NFH5. The fermentation was carried out at 37 °C with pH 7.5 at 150 rpm for 72 h. Data represent the means ± standard deviations for triplicateBack to article page