麦草生物化机浆的木聚糖酶漂白  

Xylanase-aided Bleaching of Chemi-mechanical Pulp from Bio-treated Wheat Straw

作　　者：于红[1] 秦梦华[1] 卢雪梅[2] 曲音波[2] 高培基[2] 

机构地区：[1]山东轻工业学院制浆造纸工程省级重点学科,山东济南250100 [2]山东大学微生物技术国家重点实验室,山东济南250100

出　　处：《纤维素科学与技术》2004年第1期14-18,共5页Journal of Cellulose Science and Technology

基　　金：山东省自然科学基金(Y2002B08)资助课题

摘　　要：探讨了在由PhanerochaetechrysosporiumME446麦草上固态发酵制得的木聚糖粗酶对麦草生物化机浆漂白效果的改善作用,并对其预处理工艺进行了优化。实验结果表明,当木聚糖酶用量为15IU/g,浆浓15%,处理3h后,麦草生物化机浆的白度可达到66.1%ISO。文章还对木聚糖酶处理前后的麦草化机浆纤维进行了扫描电镜的观察。Wheat straw chemi-mechanical pulp was pretreated with a crude xylanase which was secreted by white rot fungus Phanerochaete chrysosporium prior to hydrogen peroxide bleaching. The process of xylanase pretreatment was optimized in the paper. At a dosage of 15 IU/g, the xylanase treated pulp was bleached to 66.1% ISO at a consistency of 15% after 3 h of incubation. The xylanase treatment could facilitate the bleaching of hydrogen peroxide, improving pulp properties. Fiber morphology of pulp treated with xylanase was also studied by SEM.

关 键 词：麦草 生物漂白 木聚糖酶 生物化机浆 预处理工艺 生物技术 造纸业 

分 类 号：TS721.3[轻工技术与工程—制浆造纸工程] TS745