漆酶和漆酶/介体处理对未漂硫酸盐浆白度和色度的影响  

The Impact of Laccase and Laccase/Mediator Treatment on the Whiteness and Chromaticity of Unbleached Kraft Pulp

作　　者：刘娜[1] 石淑兰[1] 裴继诚[1] 双金玲[1] 

机构地区：[1]天津科技大学天津市制浆造纸重点实验室,天津300222

出　　处：《中国造纸学报》2006年第3期23-26,共4页Transactions of China Pulp and Paper

基　　金：国家自然科学基金(30471359);天津市高等学校科技发展基金(20031303);天津科技大学重点基金(20040108);制浆造纸工程国家重点实验室(华南理工大学)(200407)资助课题

摘　　要：探讨了不同的漆酶/介体处理对未漂硫酸盐浆白度和色度的影响,着重研究了单独漆酶和以丁香酸甲酯(MS)为介体的漆酶/介体体系对白度和色度的影响。结果表明:不同的漆酶/介体体系,均未改善纸浆的白度。单独漆酶处理可导致纸浆白度和L*值稍有降低,a*值稍有增加,b*值下降。漆酶/MS处理造成纸浆白度和L*值下降更为明显,a*值大幅上升,b*值下降。纸页的白度随漆酶用量的增加稍有下降;不同的处理温度对纸浆白度和色度影响不大;增加介体MS用量导致纸页的白度和L*值进一步下降,a*值明显增加,b*值变化不大。The impact of different laccase/mediator treatment on the whiteness of unbleached kraft pulp was studied, and emphasis was put on the effect of laccase alone and laccase/methyl syfingate（L/MS）treatment on the whiteness and chromaticity of unbleached kraft pulp. It was found that laccase with different mediator treatments all didn＇ t improve whiteness of the pulp. Laccase alone treatment caused whiteness and L^＊ value of the pulp decrease, a tittle increase of a^＊（redness） and decrease of b^＊ （yellowness）. Laccase/MS treatment further decreased whiteness and L^＊ , and there was substantial increase in a^＊ value and a decrease in b^＊ value compared with the control sample. The whiteness of the pulp decreased slightly with increased dosage of laccase. Different treatment temperature had a little effect on the whiteness and chromaticity of the pulp. Increase in MS charge caused comidemble decrease in whiteness, noticeable increase in redness and a little change of yellowness.

关 键 词：漆酶 丁香酸甲酯 白度 色度 

分 类 号：TS743.14[轻工技术与工程—制浆造纸工程]