The adsorptive and hydrolytic performance of cellulase on cationised cotton
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- 作者：Longyun Hao ; hlyqdu@hotmail.com ; Rui Wang ; Jingquan Liu ; Rongzhan Liu
- 关键词：Cellulase ; Cationised cotton ; Adsorption ; Hydrolysis
- 刊名：Carbohydrate Polymers
- 出版年：2012
- 出版时间：5 June, 2012
- 年：2012
- 卷：89
- 期：1
- 页码：171-176
- 全文大小：1104 K
文摘
In this research, the cotton fabrics were cationised by a cationic agent to change their surface electric properties. The cationised cotton fabrics were then bio-polished by cellulase to explore the influence of cationisation on the adsorptive and hydrolytic performance of cellulase. The experimental results from cellulase adsorption reveal the cationisation of cotton can obviously improve the binding efficiency of cellulase protein mainly by the improved electrostatic attraction between oppositely charged cellulase and cationised cotton. The adsorption parameters calculated can further prove this improvement trend. Through measuring the concentration of reducing sugars released and weight loss of cotton during the bio-polishing, it is found the hydrolytic activity toward cotton is partially damaged by the cationisation. The reason can be attributed to the movement restriction and dysfunction of cellulase protein by the cationisation.