摘要
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-RCAPMP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。
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 unpretreated 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.
出处
《中国造纸学报》
CAS
CSCD
北大核心
2010年第1期52-56,共5页
Transactions of China Pulp and Paper
基金
国家自然科学基金(30972326)
山东自然科学基金(Y2007D41)
山东省教育厅国际合作项目
山东省科技发展计划项目(2008GG2TC01011-4)的资助
