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速生杨枝桠材P-RC APMP浆的酶促磨浆

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研究了纤维素酶和木聚糖酶对速生杨枝桠材P-RC APMP浆酶促磨浆性能的影响.实验结果表明酶预处理可以改善P-RC APMP浆的磨浆性能和成浆质量.纤维素酶和木聚糖酶预处理纸浆打浆度提高3~11°SR,磨浆能耗明显降低.最佳酶用量为25 IU/g.与未经过酶预处理速生杨枝桠材P-RC APMP浆相比,纤维素酶预处理纸浆裂断长提高11%,撕裂指数提高13%,耐破指数提高14%,耐折度提高50%,白度提高1.2个百分点;木聚糖酶预处理纸浆裂断长略有提高,撕裂指数提高15%,耐破指数提高11%,耐折度提高75%,白度提高1.9个百分点.酶预处理可抑制纸浆返黄.纤维素酶的酶促磨浆效果好于木聚糖酶.
Refining Boosting Effects of Cellulase and Xylanase on P-RC APMP Pulp of Fast-growing Poplar Lop Wood
Effect of cellulase and xylanase on refining boosting of P-RC APMP pulp of fast-growing poplar lop wood was studied.The results showed that the refining performance and quality of P-RC APMP pulp were improved.The beating degree of treated pulp increased in range from 3°SR to 11°SR,and refining energy decreased obviously.The optimal dosages of cellulase and xylanase were 25 IU/g.Compared with anpretreated pulp,the breaking length,tearing index,bursting index,folding endurance and brightness of the pretreated pulp with cellulase increased by 11%,13%,14%,50%and 1.2% ISO respectively,and the pretreated pulp with xylanase increased by 2%,15%,12%,75% and 1.9% ISO respectively.The PC values of the pulps pretreated with cellulase and xylanas decreased.It Was found the pretreatment effect of cellulase was better than that of xylanase.

lop woodcellulasexylanaseP-RC APMPenzymatic beating boosting

杨桂花、陈嘉川、穆永生、陈克复

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山东轻工业学院造纸科学与技术省部共建教育部重点实验室,山东济南,250353

华南理工大学制浆造纸工程国家重点实验室,广东广州,510640

枝桠材 纤维素酶 木聚糖酶 P-RC APMP浆 酶促打浆

国家自然科学基金教育部科学技术研究项目山东省教育厅国际合作项目山东省科技发展基金

30972326Y2007D412008GG2TC01011-4

2010

中国造纸学报
中国造纸学会

中国造纸学报

CSTPCDCSCD北大核心
影响因子:0.794
ISSN:1000-6842
年,卷(期):2010.25(1)
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