The condition of the production of chitosan from aspergillus by fermentation was studied.After using machine grind and hot alkaline and acid pre-treatment,the condition of chitosan extractin was made by orthogonal des...The condition of the production of chitosan from aspergillus by fermentation was studied.After using machine grind and hot alkaline and acid pre-treatment,the condition of chitosan extractin was made by orthogonal design.The method of treating with alkali was carried out at 100℃ and 12.50 mol/L alkaline concentration for 2 h,the yield of chitosan from dry aspergillus strain reached 7.75%.The chitosan of 90.00% deacetylate degree was produced by using high pressure(0.1 pound)and diluted alkali(7.50 mol/L)method.It can reduce alkaline dosage and the pollution of the environment.展开更多
文摘The condition of the production of chitosan from aspergillus by fermentation was studied.After using machine grind and hot alkaline and acid pre-treatment,the condition of chitosan extractin was made by orthogonal design.The method of treating with alkali was carried out at 100℃ and 12.50 mol/L alkaline concentration for 2 h,the yield of chitosan from dry aspergillus strain reached 7.75%.The chitosan of 90.00% deacetylate degree was produced by using high pressure(0.1 pound)and diluted alkali(7.50 mol/L)method.It can reduce alkaline dosage and the pollution of the environment.
