摘要
采用α-淀粉酶和糖化酶协同制备酶解淀粉,通过单因素和正交试验优化酶解淀粉的制备工艺,采用X射线衍射光谱和扫描电镜对酶解淀粉进行表征。优化的酶解淀粉制备工艺为:m糖化酶∶mα-淀粉酶=3∶1、淀粉浆质量分数30%、p H值5.5、酶质量分数1.0%(对生淀粉干重)、反应温度45℃、反应时间24 h。采用该工艺制备的酶解淀粉,容重较淀粉原料提高了35.26%。亚麻织物经该酶解淀粉协同低聚壳聚糖防皱整理后,织物的折皱回复角、强力等性能指标均优于2D树脂,且无甲醛释放。
The enzymolyzed starch is co-prepared by s-amylase and glucoamylase. The preparation con- dititions are optimized through the single factor and orthogonal experiments. The enzymolyzed starch is characterized by X ray diffraction spectrum and scanning electron microscope. The optimal preparation process is m（glucoamylase） to re（G-amylase）=3： 1, mass fraction of starch 30%, pH value 5.5, mass frac- tion of enzyme 1.0% （to dry weight of raw starch）, reaction at 45 ℃ for 24 h. The prepared enzymolyzed starch features 35.26% higher bulk density than that of raw starch. The linen fabric, synergistically fin- ished with chitosan oligosaccharide and enzymolyzed starch, has higher wrinkle recovery angle and strength retention than those with 2D resin, while the former has no formaldehyde release.
出处
《印染》
北大核心
2015年第9期15-20,27,共7页
China Dyeing and Finishing
基金
亚麻深加工(黑龙江省教育厅振兴东北老工业基地重大科技攻关项目
项目编号:1152GZB09)
关键词
防皱整理
低聚壳聚糖
酶解淀粉
亚麻织物
anti-crease finish
ologochitosan
enzymolyzed starch
linen fabric
作者简介
高树珍（1968-），女，教授，硕士研究生导师，主要研究方向为亚麻深加工。E-mail：GAOSHUZHEN@126．com。
