Cellulase Treatment of Cotton Fabrics

Abstract

We have investigated the rate of catalytic hydrolysis of cellulose fabrics by a cellulase enzyme in the presence of dyes on a cotton substrate. We found that both direct and reactive dyes on the substrate apparently inhibited the enzyme catalytic reaction, whereas a vat dye did not. The enzyme was more active for mercerized than for nonmercerized cotton. The enzyme treatment significantly reduced both tear strength and dye uptake of the fabrics. Enzyme-treated and successively dyed fabrics showed different color fading profiles compared to untreated fabrics after laundering.

Regulation of transcription of cellulases- and hemicellulases-encoding genes in Aspergillus niger and Hypocrea jecorina (Trichoderma reesei)

“…(Buchert et al 1998;Noé et al 1986;Viikari et al 1994) and textile industry (e.g. Koo et al 1994;Pedersen et al 1992).…”

Xyr1 (Xylanase Regulator 1) Regulates both the Hydrolytic Enzyme System and d -Xylose Metabolism in Hypocrea jecorina

“…Hydrolases secreted by this fungus have achieved broad areas of applications, e.g., in pulp and paper (4, 35, 50), food and feed (9, 27, 49), and textile (23,26,36) industries. The set of hydrolytic enzymes produced by H. jecorina comprises two main cellobiohydrolases, CBHI and CBHII (EC 3.2.1.91) (43); endo-␤-1,4-glucanases EGI to EGV (EC 3.2…”

“…Hydrolases secreted by this fungus have achieved broad areas of applications, e.g., in pulp and paper (4,35,50), food and feed (9,27,49), and textile (23,26,36) industries. The set of hydrolytic enzymes produced by H. jecorina comprises two main cellobiohydrolases, CBHI and CBHII (EC 3.2.1.91) (43); endo-␤-1,4-glucanases EGI to EGV (EC 3.2.1.4) (37); 1,4-␤-glucosidases BGLI and BGLII (EC 3.2.1.21) (8,40); two major specific endo-␤-1,4-xylanases, XYNI and XYNII (EC 3.2.1.8) (45); and one ␤-xylosidase, BXLI (EC 3.2.1.37) (17), to mention only the best characterized.…”

Transformation System for Hypocrea jecorina ( Trichoderma reesei ) That Favors Homologous Integration and Employs Reusable Bidirectionally Selectable Markers

“…These enzymes are used in various industrial applications, such as pulp and paper production (2,30,44) and in the food and feed industries (8,24,43) and in the textile industry (19,23,32). Due to the rising need for alternative fuels, these enzymes have gained attention because of their ability to turn lignocellulosic biomass into biofuel (13,15,35).…”