Bacterial strain capable of producing chitin deacetylase and application of bacterial strain in production of chitin deacetylase through fermentation

The invention provides a bacterial strain capable of producing chitin deacetylase and an application of bacterial strain in production of chitin deacetylase through fermentation. The bacterial strain is Aspergillus versicolor X, and is preserved at a China Center for Type Culture Collection, the preservation number is CCTCC NO.M2014459, and preservation date is 8th, Oct, 2014. The invention also provides a enzyme production method through fermentation, the enzyme activity of the prepared chitin deacetylase can reach 1.41U/mL. The application has the advantages that scope of enzyme microbe capable of producing chitin deacetylase is developed, production cost is reduced, and chitin deacetylase has wide application prospect.