NOVEL DEAMINONEURAMINIDASE AND PROCESS FOR PRODUCING THE SAME

摘要

A deaminoneuraminidase is harvested from the product of culture of a sphingobacterium such as Sphingobacterium mOL12-4s. This enzyme acts on a simple or complex carbohydrate containing deaminoneuraminic acid so as to hydrolyze the ketoside linkage of the acid and form free deaminoneuraminic acid and a simple or complex carbohydrate completely or partly deprived of deaminoneuraminic acid, but does not hydrolyze the ketoside linkage of N-acetylneuraminic acid or N-glycolylneuraminic acid of a simple or complex carbohydrate containing the N-acylneuraminic acid.