XYLANASE BLEACH BOOSTING OF POM-CATALYZED PULP OZONATION IN ORGANIC SOLVENT MEDIA

摘要：

HP As catalyzed ozonation of chemical pulps in organic solvent media was found to be particularly effective and selective environmentally benign bleaching approach. The effect of enzymatic pretreatment with commercial xylanase preparation (endol,4-β-xylanase activity, EC 3.2.1.8) on HPA catalyzed ozonation of industrial eucalypt kraft pulp in solvent solution has been studied with an aim of further bleaching improvement. The substantial increase in pulp brightness, degree of delignification and intrinsic viscosity was achieved in comparison with control (enzyme-free) samples, significantly improving the efficiency and selectivity of HPA/O3 bleaching system.

关键词： xylanases heteropolyanion catalysis ozone bleaching organic solvent

作者: Anatoly A. Shatalov Helena Pereira

作者单位: Forest Research Center, TechnicalUniversity of Lisbon, Institute of Agronomy, 1349-017 Tapada da Aju Forest Research Center, Technical University of Lisbon, Institute of Agronomy, 1349-017 Tapada da Aj

会议类型: 国际会议

会议名称: 16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)

会议地点: 天津

会议语种:英文

页码: 770-772

在线出版日期: 2011-06-08（万方平台首次上网日期，不代表论文的发表时间）