Ultrasonic effect on the desizing efficiency of α-amylase on starch-sized cotton fabrics

被引：32

作者：

Hao, Longyun ^{[1
]}

Wang, Rui ^{[1
]}

Fang, Kuanjun ^{[1
]}

Liu, Jingquan ^{[1
]}

机构：

[1] Qingdao Univ, Chem & Environm Coll, Qingdao 266071, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2013年 / 96卷 / 02期

基金：

中国国家自然科学基金;

关键词：

alpha-Amylase; Enzymatic desizing; Ultrasound; Starch; Cotton fabrics; ENZYMATIC-HYDROLYSIS; CELLULASE; INACTIVATION; OPTIMIZATION; FLUORESCENCE; PERFORMANCE; ADSORPTION; KINETICS; ENERGY; MAIZE;

D O I：

10.1016/j.carbpol.2013.04.003

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Enzymatic desizing by alpha-amylase and ultrasound irradiation are the two important clean technologies in the textile industry. In the present work, with the aim of giving a further insight to the influence of ultrasound on alpha-amylase activity and its desizing efficiency, the ultrasound-based experiments were afforded in two ways: (i) step-wise treatment of alpha-amylase by ultrasound and then enzymatic desizing, as well as; (ii) simultaneous utilization of ultrasound and alpha-amylase for the desizing. By the step-wise strategy, it is found that the ultrasound has negative impact on the alpha-amylase activity using soluble starch as substrate. However, the sonicated alpha-amylase possesses higher desizing efficiency because there are higher hydrophobic interactions between sonicated alpha-amylase protein and starch-sized cotton and thus intensifies its catalytic activity. By the simultaneous procedure, the enhancement to desizing efficiency is more pronounced than that by the step-wise procedure. This can be attributed to comprehensive actions of several reasons such as more effective stirring/mixing mechanism, damages or changes to substrate, more effective catalysis to hydrolytic reactions and faster removal of loosened products from the fabric bulk. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：474 / 480

页数：7

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