漆树漆酶对马尾松化机浆的生物改性研究  

Bio-modification of Rhus laccase on masson pine CTMP

作　　者：彭涛[1] 林鹿[1] 雷晓春[1] 劳宗广[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640

出　　处：《中华纸业》2007年第11期27-30,共4页China Pulp & Paper Industry

基　　金：高等学校科技创新工程重大项目培育资金资助项目(705048)

摘　　要：利用日本漆树漆酶与介体ABTS构成的体系(LMS)对马尾松化学热磨机械浆(CTMP)进行生物处理及后续H2O2漂白,分析了酶用量、介体用量、pH值、酶处理温度和酶处理时间对纸浆白度和强度性能的影响,探索LMS生物改性的最佳工艺条件。并利用傅里叶变换红外光谱技术分析用LMS处理前后的纸浆,结果表明,经LMS处理,纸浆中的发色基团减少,并伴随着木素的降解溶出,从而提高了纸浆的白度和可漂性。The masson pine CTMP was under biological treatment with the system composed of Japanese Rhus laccase and the mediator ABTS （LMS）, then bleached with hydrogen peroxide（H2O2）. The paper analyzes the influence of such factors as enzyme dosage, mediator dosage, pH value, enzyme treatment temperature and enzyme treatment time on the pulp whiteness and strength and explores the optimal technological conditions of LMS bio-modification. Then the pulps before and after the LMS treatment were analyzed by Fourier Transform infrared spectrum technology and the results show that after the LMS treatment, chromophoric group in the pulp reduced and the lignin was degraded and dissolved out thus promoting the whiteness and bleachability of the pulp.

关 键 词：漆树漆酶 漆酶/介体体系 马尾松 化学热磨机械浆 生物改性 

分 类 号：TS74[轻工技术与工程—制浆造纸工程]