环境工程学报2013，Vol.7Issue(2)：765-770,6.
灵芝漆酶对直接蓝86的催化脱色性能
Decolorization of Direct Bule 86 catalyzed by laccase from Ganoderma lucidum
摘要
Abstract
The enzymatic oxydative decolorization of Direct Blue 86 by laccase from Ganoderma lucidum U-281 was studied. Besides, the degradation mechanism was discussed. The results show that in laccase-dye co-reaction system more than 50% of Direct Blue 86 is decolorized under conditions of 20℃ to 50t and pH value less than 5.0. Laccase has a wide range of adaptability towards the dye concentration and is endurable with 300 mg/L of Direct Blue 86. The optimum decoloration parameters are as follows: 200 mg/L of initial dye concentration, 1 U/mL of laccase dosage, 40℃ and pH 5. 0 without rotation. Decoloration rates of Direct Blue 86 are 54.54% and 91.54% , respectively after 3 hours and 48 hours under the optimum conditions. UV-visible light spectrum analysis suggests that enzymatic oxidation results in changes of dye molecular structures, which is the primary mechanism causing decoloration of Direct Blue 86.关键词
灵芝菌/漆酶/纺织染料/酶促脱色/直接蓝86Key words
Ganoderma lucidum/ laccase/ textile dyes/ enzymatic oxydative decolorization/ Direct Blue 86分类
资源环境引用本文复制引用
赵世光,刘强,张庆庆,汤明礼..灵芝漆酶对直接蓝86的催化脱色性能[J].环境工程学报,2013,7(2):765-770,6.基金项目
安徽省高校省级自然科学研究项目(KJ2011B025) （KJ2011B025）
安徽省科技厅国际科技合作计划项目(10080703035) （10080703035）
安徽工程大学引进人才科研基金(2007YQQ007) （2007YQQ007）
