Characterization of a Novel Acid-Stable Chitosanase from Suitable for Chitooligosaccharide Preparation.

As high-value chitosan derivatives, chitooligosaccharides (COSs) with biodegradable, biocompatible, nontoxic, antimicrobial, and antioxidant activities have been widely applied in food-related fields. Chitosanases can hydrolyze chitosan to produce COSs. Herein, a chitosanase (Cho1) from was successfully expressed in and was then purified and characterized.