| APTMP复合纤维素酶的改性 |
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| 引用本文： | 江茂生,张建春.APTMP复合纤维素酶的改性[J].福建林学院学报,2005,25(1):72-76. |
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| 作者姓名： | 江茂生 张建春 |
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| 作者单位： | 1. 福建农林大学生命科学学院,福建,福州,350002
2. 福建农林大学材料工程学院,福建,福州350002 |
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| 基金项目： | 福建农林大学校科研和教改项目 |
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| 摘 要： | 用复合纤维素酶处理APTMP,探讨了不同酶处理条件(温度、酶用量、浆浓、处理时间)下还原糖生成量、纸浆滤水性及强度的变化规律 实验结果表明,纤维素复合酶对APTMP的各筛分的水解作用在不同条件下具有不同的选择性,在较低温度、酶用量、浆浓和较短处理时间的轻处理条件下,酶分子与浆中的细小组分作用的选择性更高,在改善纸浆滤水性的同时,还有利于物·g-1(CMC酶活力)理强度提高 当pH值为5 0时,在45 0℃、浆浓3%、酶用量5 0×10-8mol·s-1的条件下处理30min,纸浆的打浆度下降4 8°SR,成纸裂断长提高120m,与二次纤维复配成的新闻纸浆抄造性能得到了改善
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| 关 键 词： | APTMP 复合纤维素酶 改性 处理条件 选择性 |
| 文章编号： | 1001-389X(2005)01-0072-05 |
| 修稿时间： | 2004年6月30日 |
The Technology of APTMP Modification with Complex Celleluses |
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| JIANG Mao-sheng,ZHANG Jian-chun.The Technology of APTMP Modification with Complex Celleluses[J].Journal of Fujian College of Forestry,2005,25(1):72-76. |
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| Authors: | JIANG Mao-sheng ZHANG Jian-chun |
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| Institution: | JIANG Mao-sheng~1,ZHANG Jian-chun~2 |
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| Abstract: | The APTMP was treated with complex cellulases. Changing patterns of yield of reducing carbonhydrate,drainage property and strength of paper in different reaction conditions (temperature,dosage of enzyme,process time and pulp concentration) were investigated and analyzed. The results showed that the reaction of each screening of APTMP hydrolyzing with complex cellulases in different reaction conditions had different selectivities. When treated in lower temperature ,enzyme dosage ,pulp concentration and process time,the enzyme molecules tended to more selectively react with the diminutive compose of APTMP,so that the pulp drainage property was modified,and the strength of the paper can be upgraded. When treated in condition which pH=5.0,T=45.0 ℃,C=3%,t=30 min and the dosage of enzyme was 5.0×10~(-8) mol·s~(-1) per gram pulp,the pulp beating degree may reduce by 4.8 °SR,and the strength of the paper may increase by 120 m,and the properties of newspaper pulp which mixed with enzyme-modified APTMP and recycled pulp could also be improved. |
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| Keywords: | APTMP |
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