里氏木霉木聚糖酶降解粗碱木质素中木聚糖的研究  

Enzymatic Hydrolysis of Xylan in Raw Alkaline Lignin by Xylanase from Trichoderma reesei

作　　者：付强善[1] 姚春才[1] 勇强[1] 

机构地区：[1]南京林业大学化学工程学院,江苏南京210037

出　　处：《林产化学与工业》2007年第2期89-91,共3页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金资助项目(30471361);南京林业大学人才基金资助项目(163030507)

摘　　要：研究用里氏木霉木聚糖酶降解粗碱木质素中的木聚糖,得出了适宜的酶解条件:pH值4.8、温度45℃、酶解时间4h。还探讨了固形物浓度和酶用量对除糖率的影响。结果表明,随着固形物浓度的增加,除糖率逐渐降低;木聚糖酶用量越大,除糖率越高。Enzymatic hydrolysis of xylan in raw alkaline lignin by xylanase from Trichoderma reesei was studied. The optimal hydrolysis conditions were determined as follows ： pH value 4.8, temperature 45℃, hydrolysis time 4 h. The effects of solid concentration and enzyme dosage on sugar removing rate were also investigated. Results showed that sugar removing rate decreases as solid concentration increases and that the higher the enzyme dosage, the larger is the sugar removing rate.

关 键 词：木聚糖酶 粗碱木质素 酶解 除糖率 

分 类 号：TQ351.377[化学工程] Q556[生物学—生物化学]