Enzyme productivity from the protoplast regenerants of Aspergillus awamori

Protoplasts from the hydroiase enzyme producer Aspergillus awamori were isolated using Bulgarian enzyme preparations—Trichocease-SU and Xylanase. Among the regenerated colonies from protoplasts two were selected with enhanced productivity of xylanase, endoglucanase and β-glucosidase. The endoglucanase produced by the parent and one of the regenerants differ in their absorptivity, sensitivity to product inhibition and heat stability.