β-呋喃果糖苷酶合成低聚乳果糖的工艺研究

Science and Technology of Food Industry(2008)

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Abstract
以蔗糖和乳糖为底物,利用节杆菌β-呋喃果糖苷酶合成低聚乳果糖,通过单因素和正交实验获得酶反应的最佳工艺条件为:酶反应体系的pH为6.5,反应温度37℃,酶用量1500U/g蔗糖,酶反应时间12h,反应体系的固形物含量为40%,蔗糖和乳糖的比例为1∶1,该条件下低聚乳果糖的最大转化率为160.83mg/mL。
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Key words
Lactosucrose,β-fructofuranoside,Arthrobacter sp.,synthesis
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