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标题：Study and application of an enzymatic pool in bioscouring of cotton knit fabric
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作者：Laís Graziela de Melo da Silva ; Laís Graziela de Melo da Silva ; Débora de Oliveira 等
期刊名称：Canadian Journal of Chemical Engineering
印刷版ISSN：0008-4034
出版年度：2017
卷号：95
期号：7
页码：1253-1260
DOI：10.1002/cjce.22780
语种：English
出版社：Chemical Institute of Canada
摘要：Abstract Grey cotton contains between 4–12 % non‐cellulosic impurities. The removal of these impurities is generally carried out by alkaline washing at elevated temperatures which may cause damage to the cellulose fibre and generate an effluent with a high environmental impact. An alternative approach is the use of bioscouring, with enzymes specifically removing the impurities under mild conditions of pH and temperature. In this study, the effect of a commercial enzymatic pool (cellulase, lipase, and pectinase) on the bioscouring of 100 % cotton knit fabric was evaluated. The effect of each enzyme and the interaction between them were evaluated with the aid of an experimental design and the characterization of the treated fabric (weight loss, degree of whiteness, degree of pectin removal, and hydrophilicity) was performed. The combination of the three enzymes on bioscouring led to the best results in terms of degree of whiteness (25.0 °Berger), pectin removal (87 %), and hydrophilicity (14 s). A comparison between the enzymatic treatment and the scouring confirmed that bioscouring can be as effective as the conventional process, being more environmentally sustainable because it occurs at neutral pH and consumes less water and energy.
关键词：enbioscouringcottoncellulaselipasepectinase