Fig. 15From: Optimization, partial purification, and characterization of a novel high molecular weight alkaline protease produced by Halobacillus sp. HAL1 using fish wastes as a substrateEffect of EDTA on the activity of HAL1 protease. The effect of EDTA concentration was evaluated by assaying protease activity at different concentrations (5, 10, and 15Â mM). The error bars show the standard deviation of three replicatesBack to article page