| 两种木聚糖酶辅助漂白三倍体毛白杨KP浆对比研究 |
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| 引用本文： | 张勇,蒲俊文,吴玉英,谢响明.两种木聚糖酶辅助漂白三倍体毛白杨KP浆对比研究[J].造纸科学与技术,2007,26(3):1-4,35. |
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| 作者姓名： | 张勇 蒲俊文 吴玉英 谢响明 |
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| 作者单位： | 1. 北京林业大学材料科学与技术学院,北京,100083
2. 北京林业大学生物科学与技术学院,北京,100083 |
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| 摘 要： | 用复合木聚糖酶和纯木聚糖酶分别对三倍体毛白杨KP浆进行了单段预处理及后续ECF、TCF漂白，对比研究两种木聚糖酶对三倍体毛白杨KP浆的可漂性改善效果和白度提高程度。结果表明，两种酶都有较好的助漂效果，均可制得白度80％ISO以上、粘度能保持在1000mL／g左右的高白度、高强度低氯或无氯漂白浆，但二者处理侧重点不相同，可根据对漂后浆性质要求合理选择使用。三倍体毛白杨制浆漂白性能良好。若在ECF碱抽提段加入0．5％H2O2可强化碱抽提效果。氧脱木素作用明显，是TCF漂白必不可少的组成部分。
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| 关 键 词： | 复合木聚糖酶 纯木聚糖酶 三倍体毛白杨KP浆 |
| 文章编号： | 1671-4571（2007）03-0001-04 |
Contrast Study of Assistant Bleaching with Two Kinds of Xylanase on Triploid Chinese Poplar KP |
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| Zhang Yong,Pu Junwen,Wu Yuying,Xie Xiangming.Contrast Study of Assistant Bleaching with Two Kinds of Xylanase on Triploid Chinese Poplar KP[J].Paper Science & Technology,2007,26(3):1-4,35. |
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| Authors: | Zhang Yong Pu Junwen Wu Yuying Xie Xiangming |
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| Affiliation: | 1. College of Materials Science and Technology, Beijing Forestry University, Beijing 100083; 2. College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083 |
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| Abstract: | Biobleaching and following ECF,TCF bleachings with compound xylanase and pure xylanase separately of triploid Chinese poplar KP were studied to compare the improved bleachability.The results showed that both compound xylanase and pure xylanase could get high brightness(>80%ISO)and high viscosity(about 1000mL/g) ECF or TCF bleached pulp,but their bleaching emphases were different and could be chosen according to the request of the character of bleached pulp.Pulping and bleach abilities of triploid Chinese poplar were good.Adding 0.5%H2O2 to the stage of alkali extraction in ECF could strengthen the effect.Oxygen delignification had a good effect and was a necessary part of TCF sequence. |
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| Keywords: | ECF TCF |
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