摘要
选用木聚糖酶和漆酶对竹原纤维进行精细化处理,探讨了不同处理工艺对竹原纤维化学成分和线密度的影响.结果表明,两种酶在60℃时活性最佳;随着酶质量分数的增加,半纤维素或木质素质量分数呈先迅速下降后趋于平缓、并略有上升的趋势;随着处理时间的延长,半纤维素或木质素质量分数呈先下降后趋于平缓的趋势,纤维线密度的变化规律则与之相反.木聚糖酶的最佳处理工艺条件为:温度60℃,质量分数0.5%,时间4h,纤维线密度达5.82tex,比处理前降低42.9%;漆酶的最佳处理工艺条件为:温度60℃,质量分数2.0%,时间4h,纤维线密度达5.31tex,比处理前降低47.2%.
The effects of enzymatic treatment using xylanase and laccase on the refining of natural bamboo fibers were studied. The chemical components and the linear density of bamboo fibers were evaluated. The experimental results show that the content of hemicelluloses or lignin decreases to a fixed value and then increases slowly with the increasing of enzyme concentration, and the content of hemieelluloses or lignin decreases with the extension of time, and the basic law of linear density of the natural bamboo fibers change reverses. The optimum conditions for xylanase： concentration of 0, 5 %, treatment time of 4 hours and temperature of 60℃, and the linear density of the fibers obtained reaches 5.82 tex, decreased by 42.9%; and those for laccase： concentration of 2.0%, treatment time of 4 hours and temperature of 60℃, and the linear density of the fibers obtained reaches 5.31 tex, decreased by 47.2%.
出处
《东华大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第3期309-313,共5页
Journal of Donghua University(Natural Science)
关键词
竹原纤维
性能
木聚糖酶
漆酶
natural bamboo fiber
property
xylanase
laccase
