木聚糖酶预处理对沙柳硫酸盐浆ECF漂白的影响  

Effects of Xylanase Pretreatment on ECF Bleaching of Salix Psammophila Sulfate Pulp

作　　者：袁来全[1] 杨桂花[1] 陈嘉川[1] 

机构地区：[1]山东轻工业学院制浆造纸科学与技术教育部重点实验室,济南250353

出　　处：《纸和造纸》2011年第7期55-58,共4页Paper and Paper Making

基　　金：国家自然科学基金(30972326;31070525);山东自然科学基金(ZR2010CM065);973计划前期研究专项(2011CB211705)

摘　　要：研究木聚糖酶预处理对沙柳硫酸盐浆ECF漂白性能的影响。结果表明,木聚糖酶预处理的最佳工艺条件为:温度50℃,pH7,浆浓8%,处理时间60min,酶用量10IU·g-1浆。木聚糖酶预处理可以提高沙柳硫酸盐浆的ECF漂白性能,使DED漂白浆的白度提高4.02%ISO。用木聚糖酶进行ECF漂白预处理不仅能够提高纸浆白度,有效降低漂白时的化学品用量,而且对纸浆强度影响并不明显。The effect of xylanase pretreatment ECF bleaching of salix psammophila sulfate pulp was investigated. The results indicated that the suitable conditions for xylanase pretreatment were： temperature 50℃, pH value 7, pulp consistency 8%, time 60 min, enzyme dosage 10IU·g^-1.The xylanase pretreatment can enhance the bleaching properties of salix psammophila sulfate pulp. The brightness of xylanase pretreated pulp after DED bleaching was increased by 4.02%ISO. ECF bleaching with the xylanase pretreatment not only can enhance the brightness of pulp and reduce the amount of chlorine used effectively, but also not significant effect on pulp strength.

关 键 词：沙柳硫酸盐浆 木聚糖酶 ECF漂白 

分 类 号：TS745[轻工技术与工程—制浆造纸工程] Q814.9[生物学—生物工程]