Fig. 5From: Optimization and enhanced production of α-amylase and protease by a newly isolated Bacillus licheniformis ZB-05 under solid-state fermentationEffect of nitrogen supplementations on α-amylase production and protease (ammonium sulphate and bacto casaminoacid represent significantly different results at p < 0.01 for α-amylase but there were no significantly different results for protease)Back to article page