G6-2细菌木聚糖酶漂白NaOH-AQ麦草浆的研究  

Bleaching of Soda-AQ Wheat Straw Pulp with an Alkali-Tolerant Xylanase G6-2

作　　者：陈嘉川[1] 杨桂花[1] 李昭成[1] 曲音波[2] 高培基[2] 杨建云[2] 

机构地区：[1]山东轻工业学院,济南250100 [2]山东大学,济南250100

出　　处：《中国造纸学报》2000年第1期43-48,共6页Transactions of China Pulp and Paper

基　　金：山东省中青年科学家科研奖励基金

摘　　要：从土壤中分离得到一株耐碱性木聚糖酶高产细菌 ,经鉴定属假单胞菌属。探讨了用其所产木聚糖酶处理NaOH AQ麦草浆的工艺参数及酶处理对后续漂白的影响。结果表明 ,用该木聚糖酶漂白NaOH AQ麦草浆的最佳条件为 :酶用量 5 0IU/g浆 ,pH 7 5 ,纸浆浓度 5 %～ 10 % ,温度 40～ 5 0℃ ,时间 90～ 12 0min。An alkali-tolerant bacterium identified as a strain of pseudomonas which can produce an extra cellular alkali stable xylanase was isolated from soil. The conditions of enzyme treatment for soda AQ wheat straw pulp and the effect of enzyme treatment on the subsequent bleaching were investigated. It was found that the optimum conditions for bleaching of soda AQ wheat straw pulp with the xylanase are as follows: enzyme dosage 50IU/g,pH 7.5, consistency 5%～10% and 40～50℃ for 90～120 minutes.

关 键 词：麦草浆 漂白 AQ 木聚糖酶 纸浆浓度 酶处理 酶用量 高产 土壤 细菌 

分 类 号：TS745[轻工技术与工程—制浆造纸工程] TS74