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中文摘要：
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101U·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。
英文摘要：
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.
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