摘要
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.
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.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2004年第4期575-576,579,共3页
Chemical Research and Application
基金
华侨大学科研基金资助项目
关键词
黑曲霉菌体
壳聚糖
脱乙酰度
aspergillus strain
chitosan
deacetylate degree
