纤维素酶预处理对针叶木纤维形态的影响  

Effect of Cellulase Pretreatment on Morphology of Softwood Fiber

作　　者：马龙虎 史贺 杨扬 李鸿凯 MA Long-hu;SHI He;YANG Yang;LI Hong-kai(Winbon Schoeller New Material Co.,Ltd,Quzhou 324000,China;China National Pulp and Paper Research Institute Quzhou Branch,Quzhou 324000,China;China National Pulp and Paper Research Institute Co.,Ltd.,Beijing 100102,China)

机构地区：[1]华邦古楼新材料有限公司二期工厂,浙江衢州324000 [2]中国制浆造纸研究院衢州分院,浙江衢州324000 [3]中国制浆造纸研究院有限公司,北京100102

出　　处：《黑龙江造纸》2022年第2期1-5,共5页Heilongjiang Pulp & Paper

摘　　要：机械法制备纳米纤维素前增加酶预处理工艺,不仅可以大幅度降低机械能耗,而且制备出的产品尺寸分布更均匀。采用纤维素酶预处理结合机械法对漂白针叶木纤维原料进行处理,利用单因素试验法,研究酶预处理对PFI磨后纤维形态和形貌等性能影响的一般规律。试验结果表明:酶解时间90 min、酶解温度55℃、酶用量150 mg/kg、酶解环境pH 8.5,为每个影响因素最佳酶预处理条件。Enzyme pretreatment process can not only greatly reduce mechanical energy consumption,but also receive uniformly distributed products in mechanical preparation of Nanocellulose process.Cellulase pretreatment combined with mechanical method was used to treat bleached softwood fiber.Using single factor test method to study on the effect of cellulase pretreatment on the fiber’s morphology after PFI grinding.Results of single factor method showed that the optimal enzymatic pretreatment conditions were enzymatic hydrolysis time of 90 min,enzymatic hydrolysis temperature of 55℃,the enzyme dosage of 150 mg/kg,and the enzymatic hydrolysis pH of 8.5.

关 键 词：纤维素酶 酶用量 酶解时间 酶解温度 

分 类 号：TS721[轻工技术与工程—制浆造纸工程]