PRODUCTION METHOD OF EXTRA-CELLULAR POLYSACCHARIDE FROM GANODERMA LUCIDUM

摘要

PURPOSE: A production method of extra-cellular polysaccharide from Ganoderma lucidum is provided, which comprises two stage culture process by pH, in particular, Ganoderma lucidum mycellium producing process at pH 2-6, and extra-cellular polysaccharide producing process at pH 3-7. CONSTITUTION: A production method of extra-cellular polysaccharide from Ganoderma lucidum is characterized by comprising the followings: (i)mycellium culture process which cultures mycellium of Ganoderma lucidum at pH 2-6 and selectively adding ammonium ion; (ii)extra-cellular polysaccharide production process which cultures effectively the collected mycellium from step(i) in liquid medium of pH 3-7. The liquid medium for culturing the mycellium comprises an ammonium ion of 0.01-5 wt.%.