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Treatment of cotton fabrics with purified Trichoderma reesei cellulases
Author(s) -
Heikinheimo Lea,
CavacoPaulo Artur,
Nousiainen Pertti,
Siikaaho Matti,
Buchert Johanna
Publication year - 1998
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1998.tb01986.x
Subject(s) - trichoderma reesei , cellulase , ultimate tensile strength , chemistry , hydrolysis , food science , horticulture , composite material , materials science , biochemistry , biology
Two different types of cotton fabrics, i. e. cotton twill and cotton poplin, were treated with purified Trichoderma reesei cellulases. Methods used to evaluate the enzyme effects included weight loss, tear strength, bending hysteresis, wrinkle recovery and pilling tendencies. When the different fabric properties at the same weight loss level were compared, it was apparent that cellobiohydrolase I (CBH I) and endoglucanases had different effects on cotton fabrics. Endoglucanases caused more strength loss than CBH I but had also positive effects on the bending behaviour and pilling properties. The two endoglucanases tested differed in their action. At low hydrolysis levels practically no strength loss was obtained with these endoglucanases whereas at higher dosages EG II caused significantly higher strength losses as compared to EG I. A positive result in the pilling was, however, also obtained with these low enzyme levels, indicating practically no strength loss.