碱性H_2O_2预处理棉籽壳酶法生产低聚木糖的研究  

Study on enzymatic hydrolysis of H_2_2 alkaline pretreatment of cottonseed husk xylo-oligosaccharides research

作　　者：侯丽芬[1] 孙向阳[2] 丁长河[3] 

机构地区：[1]郑州旅游职业学院,河南郑州450009 [2]郑州牧业工程高等专科学校,河南郑州450011 [3]河南工业大学,河南郑州450052

出　　处：《食品工业科技》2013年第10期192-196,共5页Science and Technology of Food Industry

基　　金：河南省杰出人才创新基金资助项目(0621000900)

摘　　要：以棉籽壳为原料,研究了碱性H2O2预处理的影响因素及预处理后酶水解的最适条件。以棉籽壳为原料,碱性H_2O_2浓度2.5%,30℃条件下处理时间12～14h,在此条件下预处理得到的棉籽壳木聚糖含量31.7%。利用木聚糖酶降解木聚糖制备低聚木糖,确立了最佳酶解工艺条件为:在固液比1:15的浓度下,加酶量3%,50℃酶解24h时,棉籽壳的木聚糖提取率和水解率为18.3%和57.8%。In this thesis,cottonseed husk as raw material,the basic effect of alkaline pretreatment of H202 preconditioning factors and after pretreatment of enzymatic hydrolysis conditions for optimum were studied. Alkaline concentration of H202 2.5%,30~0 processing time 12N14h,under this condition 31.7% cottonseed husk xylan content was obtained. At last,the optimum enzymolysis conditions were established.the ratio of solid to liquid 1：15 concentration,enzyme amount 3%,50C for 24h,cottonseed husk xylan extraction rate and the rate of hydrolysis were 18.3% and 57.8%.

关 键 词：棉籽壳 碱性H_2O_2 木聚糖提取 酶法水解 低聚木糖 

分 类 号：TS245.9[轻工技术与工程—制糖工程]