摘要
通过对黑曲霉(Aspergillus niger)XSY0607液体深层发酵柠檬酸的工艺条件优化试验,得出如下结论:通过单因素试验得出黑曲霉XSY0607发酵柠檬酸的合适发酵工艺条件的范围。然后通过正交试验得到出影响黑曲霉XSY0607发酵的工艺条件的大小顺序为:原料处理方式>发酵温度>初始PH>溶解氧>接种量>发酵时间>搅拌转速。最终确立了出黑曲霉XSY0607液体深层发酵柠檬酸的最优工艺条件:A1B1C2D2E2F1G2,即初始PH 5.0,发酵温度33℃,发酵时间6d,接种量16%,溶氧量80%,原料处理方式酶解,搅拌转速800rpm。
Abstract: By Aspergillus( aspergillus niger)XSY0607 Optimization of Submerged Fermentation Conditions of citric acid, following conclusions were draw: single factor experiment found out the range of the fermentation conditions. Then or- thogonal tests discovered the order of the factors influenced the process : Materials Handling 〉 fermentation temperature 〉 initial pH value 〉 dissolved oxygen 〉 volume of inoculated 〉 fermentation time 〉 rotating speed. The optimal technology conditions were: A1 B1 C2D2E2F1 G2, which were: initial pH 5, fermentation temperature 33℃, fermen- tation time 6d, inoculation rate 16%, the amount of dissolved oxygen 80%, Enzymatic hydrolysis speed 800rpm.
出处
《中国食品添加剂》
CAS
北大核心
2014年第9期133-139,共7页
China Food Additives
基金
徐州生物工程职业技术学院2013年立项课题
课题编号2013B07