Production of amylase from Aspergillus niger using defined synthetic growth medium and also rice (Oryza sativa) as growth substrate. E3

Aspergillus niger grew in both a growth medium with rice as carbon and growth source and in a defined synthetic medium with varying carbon and nitrogen sources at 25 o C producing amylase. Optimum amylase activity in rice was expressed on the eighth day of incubation as 0.58 Units. In the synthetic growth medium with starch as carbon source and tryptone as nitrogen source, optimum amylase activity was expressed on the seventh day as 0.47 Units; with ammonium chloride as nitrogen source and maltose as carbon source of growth, optimum amylase activity was expressed on the ninth day as 3.525 Units. This investigation suggests a means of production of amylase for industrial purposes