漆酶处理条件对枫香湿法纤维板强度的影响  

Effect of Laccase Treating Conditions on Internal Bond Strength of Liquidambar formasana Fiberboard

作　　者：曹永建[1] 段新芳[1] 曹远林[2] 吕建雄[1] 

机构地区：[1]中国林科院木材工业研究所国家林业局木材科学与技术重点实验室,北京100091 [2]中国科学院生物物理研究所,北京100101

出　　处：《木材工业》2007年第4期15-17,共3页China Wood Industry

基　　金：国家自然科学基金项目(30471352)

摘　　要：为消除人造板的游离甲醛污染,开发一种无胶人造板生产工艺,以漆酶和枫香纤维为原料,进行纤维板的工艺研究。以湿法生产纤维板,并检测板材的内结合强度(IB),结果表明:漆酶处理纤维板的IB值高于对照板;处理温度、时间和酶用量对纤维板的IB均有显著影响;最佳处理条件为pH 3.0,50℃,2 h,20 U/g纤维。In order to develop a new way of producing wood-based panels without free formaldehyde emission, the authors studied the technology of using laccase to activate wood fibers. Fibers of liquidambar formasana and laccase were selected, and fiberboard was manufactured under the following conditions, pH 3. 0, temperature 30-70℃, treatment time for 1,2 and 3 hours, laccase dosage at three levels of 10,20 and 30 U/g fiber. The results showed that the internal bond strength（IB） of fiberboard panels treated with laccase was higher than that of control panels. Laccase treating temperature, time and dosage all had significant influences on IB of the fiberboard. The optimum reactive parameters were pH 3.0,50℃, 2 h and 20 U/g fibers.

关 键 词：漆酶 枫香 纤维板 处理条件 内结合强度 

分 类 号：TS653.6[轻工技术与工程] Q936[生物学—微生物学]