| 木聚糖酶用于麦草浆ECF漂白的研究 |
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| 引用本文： | 王治艳,陈嘉川,杨桂花.木聚糖酶用于麦草浆ECF漂白的研究[J].中国造纸学报,2010,25(1). |
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| 作者姓名： | 王治艳 陈嘉川 杨桂花 |
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| 作者单位： | 山东轻工业学院制浆造纸科学与技术省部共建教育部重点实验室,山东济南,250353 |
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| 基金项目： | 国家自然科学基金，山东自然科学基金，山东省科技发展计划项目 |
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| 摘 要： | 采用木聚糖酶对麦草烧碱蒽醌浆进行预处理,以期提高和改进浆料的ECF漂白性能,优化并制定出木聚精酶AU-PE89的预处理条件.实验结果表明,木聚糖酶AU-PE89的最佳处理条件为:pH值6,温度50℃,酶用量6 IU/g绝干浆.此条件下DP漂白浆的白度可达82.5%,提高1.0个百分点;DEP漂白浆的白度可达83.2%,提高2.1个百分点;DED漂白浆的白度可达81.6%,提高1.3个百分点,这表明用木聚檐酶进行生物漂白,能有效降低漂白时化学品用量.
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| 关 键 词： | 麦草NaOH-AQ浆 木聚糖酶 生物漂白 |
Application of Xylanase in Wheat Straw Pulp ECF Bleaching |
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| WANG Zhi-yan,CHEN Jia-chuan,YANG Gui-hua.Application of Xylanase in Wheat Straw Pulp ECF Bleaching[J].Transactions of China Pulp and Paper,2010,25(1). |
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| Authors: | WANG Zhi-yan CHEN Jia-chuan YANG Gui-hua |
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| Affiliation: | WANG Zhi-yan CHEN Jia-chuan YANG Gui-hua(Key Lab of Paper Science , Technology of Ministry of Education,Sh,ong Institute of Light Industry,Ji\'nan,Sh,ong Province,250353) |
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| Abstract: | Wheat straw NaOH-AQ pulp was pretreated with xylanase in order to improve ECF bleaching performance properties and optimize xylanase AU-PE89'pretreatment condition.The results showed that the brightness of xylanase AU-PE89-treated pulp is improved very well,using treatment temperature 50℃,dosage of AU-PE89 6 IU/g and pH value 6,the brightness of the treated pulp Can be bleached to 82.5%by DP bleaching,an increase of 1.0 unit compared with the pulp without pretreatment and only bleached with DP sequence;Similarly the pretreated pulp can be bleached to 83.2% with an increase of 2.1 units and 81.6% with an increase of 1.3 units respectively for DEP and DED bleaching.Biological bleaching with the xylanase can reduce the amount of chlorine used effectively. |
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| Keywords: | wheat straw NaOH-AQ pulp xylanase boibleaching |
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