Method for production of polysaccharide using high density cell culture

摘要

1) culturing Escherichia coli mutant strain TBP38 in a medium containing glucose as a primary carbon source; 2) adding a secondary carbon source to the culture medium of step 1), culturing for 20 to 30 hours to obtain cultured cells; And 3) extracting the polysaccharide from the cultured cells obtained in the step 2). The method of the present invention can be used to increase the productivity of useful polysaccharides.