几种酶脱墨性能比较及机理探讨  

Studies on the Deinking Properties and Mechanism of Several Enzymes

作　　者：顾琪萍[1] 勇强[1] 尤纪雪[1] 余世袁[1] 

机构地区：[1]南京林业大学化学工程学院,江苏南京210037

出　　处：《纤维素科学与技术》2003年第4期8-15,21,共9页Journal of Cellulose Science and Technology

基　　金：国家自然科学基金资助项目(30100142)

摘　　要：对脂肪酶、木聚糖酶和纤维素酶进行脱墨性能的比较,结果表明,几种酶脱墨浆白度相近,但各有特点。脂肪酶脱墨得到的强度和得率最高;纤维素酶脱墨对滤水性的改善最佳,但对强度略有不利影响;木聚糖酶脱墨则有着适中的综合性能。通过尘埃度分析、还原糖测定和纤维形态观测等研究手段进行了脱墨机理的探讨,其结果较好地验证了上述结论。Enzymatic deinkings of lipase, xylanase and cellulase were comparatively investigated in this study. Results showed they achieved close pulp brightness but were characteristic in various aspects. Lipase deinking obtained the highest fiber strength and pulp yield; cellulase deinking improved the drainage rate to the most and xylanase deinking got mediate properties. Studies on deinking mechanism were conducted too by means of residual ink analysis, reduced sugar determination, SEM pictures, positively verifying above results in a substantial way.

关 键 词：脂肪酶 木聚糖酶 纤维素酶 化学脱墨 废纸回用 

分 类 号：TS749.7[轻工技术与工程—制浆造纸工程]