摘要
为探索一种能代替酶法制备微孔淀粉的新方法,以木薯生淀粉为原料,黑曲霉(A spergillus niger)直接发酵法制备微孔淀粉。在单因素研究的基础上,采用正交试验优化发酵工艺条件。试验结果表明,在30℃,摇床转速160r/min条件下,初始pH为6.0,5%接种量,3%豆饼粉,添加初始木薯生淀粉12%,发酵35h后,补加10%生淀粉,后期发酵35h,制得木薯微孔淀粉的吸附性能较佳。
Microporous starch was prepared directly by Aspergillus niger fermentation taking raw cassava starch as substrate and the fermentation process was optimized by an orthogonal test based on single-factor experiment to explore a new preparation method of microporous starch to take the place of enzymatic method.The results showed that the absorbability of microporous cassava starch was optimum prepared under the conditions of temperature 30℃,rotate speed 160 r/min,initial pH 6.0,inoculation amount 5%,bean powder 3%,adding initial raw cassava starch 12%,pro-fermentation time 35 h,additional raw starch 10% and post-fermentation time 35 h.
出处
《贵州农业科学》
CAS
北大核心
2011年第9期185-189,共5页
Guizhou Agricultural Sciences
基金
广西区教委人才项目(桂教人200962)
国家大学生创新基金项目(091059318)
广西大学实验教改项目(092301)
关键词
黑曲霉
木薯
微孔淀粉
吸油率
吸水率
制备工艺
Aspergillus niger
cassava
microporous starch
oil absorption ratio
water absorption rate
preparation process
作者简介
黄时海（1967-），男，高级工程师，硕士，从事食品与发酵工程的教学和科研工作。E-mail：huangshi-hai@zlcn．com
通讯作者：李湘萍（1966-），女，研究员，博士生导师，从事食品发酵与动物转基因工程的教学和科研工作。E-mail：xiangpingli@163．com
