OPTIMIZING TREATMENT CONDITIONS OF LACCASE MEDIATOR SYSTEM FOR NaOH-AQ CORN STALK PULP BY RESPONSE SURFACE METHODOLOGY

摘要：

Response surface methodology was applied to optimize laccase treatment conditions in the biobleaching of Soda-AQ corn stalk pulp. The effect of LMS treatment on subsequent bleaching was examined. The results showed that the optimal conditions of LMS treatment were as follows: laccase dose 27.7 IU·g-1odp, HBT 1％, treatment time 4 h. The results showed that the consumption of H2O2 in a P stage can save 83％ when the pulp was pretreated with LMS, compared with that without LMS treatment, if to get the same pulp brightness (about 74％ISO). Furthermore, when the same H2O2 dose (2％) was used, the final bleached pulp with LMS pre-treatment can have additional brightness gain of over 10％ISO, additional Kappa number decrease of 2 units while maintaining the same pulp strength properties than the control.

关键词： Laccase biobleaching cork stalk soda pulp

作者: Li Feng Fu Shiyu Li Hui Xie Jun Chen Yuancai Zhan Huaiyu

作者单位: State Key Laboratory of Pulp and Paper Engineering,South China University of Technology, Guangzhou,5 Applied Biotechnology Laboratory, South China Agricultural University, Guangzhou, 510642, China

会议类型: 国际会议

会议名称: 4th ISETPP(第四届制浆造纸新技术国际研讨会)

会议地点: 广州

会议语种:英文

页码: 566-569

在线出版日期: 2010-11-08（万方平台首次上网日期，不代表论文的发表时间）