| 木聚糖酶处理对亚硫酸镁浆酸性过氧化氢漂白机理的研究 |
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| 引用本文： | 云娜,邱玉桂.木聚糖酶处理对亚硫酸镁浆酸性过氧化氢漂白机理的研究[J].中华纸业,2009,30(24). |
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| 作者姓名： | 云娜 邱玉桂 |
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| 作者单位： | 1. 广东轻工职业技术学院轻化工程系,广州,510300;华南理工大学制浆造纸工程国家重点实验室,广州,510640
2. 华南理工大学制浆造纸工程国家重点实验室,广州,510640 |
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| 摘 要： | 采用X-射线衍射法和傅立叶变换红外光谱法进行木聚糖酶(X)对亚硫酸镁法竹子/蔗渣浆酸性过氧化氢(POs)漂白影响机理的研究.两种方法均能很好地反映镁盐浆纤维素的结晶结构在POs漂及X-POs漂前后的变化.所研究的几种浆样的纤维素均呈纤维素I晶态:(002)面峰较尖削,(101)面峰与(101)面峰重迭且呈圆钝形;常规POs漂浆和x-POs漂浆均比未漂浆的结晶度低,但x-POs漂浆比常规POs漂浆结晶度高.结果表明,经木聚糖酶处理的POs漂比常规POs漂既能有效地降解浆中的残留木素,又能更好地保护碳水化合物.
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| 关 键 词： | 木聚糖酶处理 亚硫酸镁竹/蔗渣浆 酸性过氧化氢漂白 机理 |
The study of xylanase treatment on mechanism of acidic hydrogen peroxide bleaching of sulfite pulp |
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| YUN Na,QIU Yu-gui.The study of xylanase treatment on mechanism of acidic hydrogen peroxide bleaching of sulfite pulp[J].China Pulp & Paper Industry,2009,30(24). |
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| Authors: | YUN Na QIU Yu-gui |
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| Affiliation: | YUN Na1,2,QIU Yu-gui2 (1.Department of Light Chemical Engineering,Guangdong Technical College of Light Industry,Guangzhou 510300,China,2.State Key Lab of Pulp , Paper Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | The mechanism of xylanase (X) treatment on the acidic hydrogen peroxide bleaching (POs) of magnesium-based sulfite bamboo/bagasse pulp was researched by means of X-ray diffraction analysis and infrared absorption spectroscopy. These two ways can better reflect the changes of crystallization structure of magnesium base pulp cellulose in POs bleaching and before or after X-POs bleaching. Several celluloses of studying samples were in the form of crystallization I. The result shows that (002) peaks are sharper... |
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| Keywords: | xylanase treatment magnesium-based sulfite bamboo/bagasse pulp acidic hydrogen peroxide bleaching mechanism |
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