摘要
以木聚糖为底物、木聚糖酶为催化剂,在木聚糖质量浓度为30.0g/L、操作压力16kPa、进料速度400mL/min、时间12h、pH值5.0、温度为48℃的条件下研究了超滤膜反应器中木聚糖的酶水解反应。结果表明,木聚糖的酶水解总糖得率为60.10%;未水解木聚糖聚合度为10左右,碱溶对聚合度没有影响;未水解木聚糖重新水解,总糖得率为7.50%。
Hydrolysis process of xylan by xylanase in membrane reactor was studied under conditions of xylan concentration 30.0 g/L,operating pressure 16 kPa,feed rate 400 mL/min,enzymatic hydrolysis time 12 h,pH value 5.0 and 48 ℃.Results showed that total sugars yield from enzymatic hydrolysis xylan was 60.10%;degree of polymerization(DP) of unhydrolyzed xylan was about 10,DP was not changed by use of alkaline;total sugars yield from enzymatic hydrolysis of unhydrolyzed xylan was 7.50%.
出处
《林产化学与工业》
EI
CAS
CSCD
2002年第4期19-22,共4页
Chemistry and Industry of Forest Products
基金
国家自然科学基金资助项目(30070636)
