| 废新闻纸纤维素酶、半纤维素酶与漆酶/介体协同脱墨作用 |
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| 引用本文： | 徐清华,秦梦华,傅英娟.废新闻纸纤维素酶、半纤维素酶与漆酶/介体协同脱墨作用[J].化工学报,2007,58(12):3152-3157. |
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| 作者姓名： | 徐清华 秦梦华 傅英娟 |
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| 作者单位： | 山东轻工业学院制浆造纸工程重点实验室，山东 济南 250100 |
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| 基金项目： | 国家自然科学基金
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山东省自然科学基金 |
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| 摘 要： | 利用纤维素酶、半纤维素酶与漆酶/介体协同对废新闻纸脱墨，对脱墨浆性能的检测结果表明，与单独使用纤维素酶、半纤维素酶和漆酶的脱墨浆相比，协同脱墨浆的残余油墨浓度降低，强度性能提高，经H2O2漂白后的白度提高，说明纤维素酶、半纤维素酶与漆酶具有协同脱墨作用，脱墨后纸浆纤维性能有所改善。测定纤维平均长度、粗度、比容和比表面积，并利用环境扫描电境（ESEM）对脱墨过程中脱墨浆纤维的表面性能变化进行了分析，发现与对照浆相比，协同脱墨浆纤维的平均长度和粗度有所降低，而比容和比表面积均提高;纤维素酶、半纤维素酶与漆酶/介体处理后，纤维表面出现细小纤维。
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| 关 键 词： | 废新闻纸 纤维素酶 半纤维素酶 漆酶/介体 脱墨 |
| 收稿时间： | 2007-2-9 |
| 修稿时间： | 2007-4-28
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Deinking of old newsprint by cellulase or hemicellulase combined with laccase/mediator system |
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| XU Qinghua,QIN Menghua,FU Yingjuan.Deinking of old newsprint by cellulase or hemicellulase combined with laccase/mediator system[J].Journal of Chemical Industry and Engineering(China),2007,58(12):3152-3157. |
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| Authors: | XU Qinghua QIN Menghua FU Yingjuan |
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| Abstract: | Deinking technology of old newsprint(ONP)by cellulase or hemicellulase combined with laccase/mediator system(LMS)was investigated.The effective residual ink concentration(ERIC)of the deinked pulp was lower than that of the pulp deinked with each individual enzyme,which suggested that ONP could be deinked by these enzymes synergistically.Brightness after H2O2 bleaching and physical properties of the pulps were better than those of the pulp obtained by pulping with each individual enzyme.Fiber morphology changes during the deinking were studied by fiber average length and coarseness,specific surface area,specific volume determination and environmental scanning electronic microscopy(ESEM)observations.Comparing with the control pulp,fiber average length and coarseness of LMS-cellulase and LMS-hemicellulase synergistic deinking pulp decreased.Specific surface area and specific volume of synergistic deinked pulp fibers were higher than those of the control pulp fibers.ESEM images indicated that fibrils were present on the fiber surface after synergistic treatment. |
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| Keywords: | old newsprint cellulase hemicellulase LMS deinking |
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