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Bioscouring and bleaching of knitted cotton fabrics in one‐step process using enzymatically generated hydrogen peroxide
Author(s) -
Reis Crisleine Zottis,
Fogolari Odinei,
Oliveira Débora,
de Arruda Guelli Ulson de Souza Selene Maria,
de Souza Antônio Augusto Ulson
Publication year - 2017
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.22891
Subject(s) - hydrogen peroxide , pectinase , chemistry , peroxide , glucose oxidase , cellulose , chemical engineering , textile , lipase , pulp and paper industry , polymer chemistry , nuclear chemistry , materials science , organic chemistry , composite material , enzyme , engineering
This research involves the study of knitted cotton fabric bleaching using hydrogen peroxide generated enzymatically. Initially the bioscouring was performed using the enzymes cellulose (EC. 3.2.1.4), pectinase (EC. 4.2.2.2), and lipase (EC. 3.1.1.3) to remove impurities. Then bleaching was performed using hydrogen peroxide, which was enzymatically produced by glucose oxidase (EC. 1.1.3.4) during oxidation of glucose. The generation of hydrogen peroxide and bleaching were assessed using experimental designs, where it was observed that the most significant effect to generate peroxide was time and for bleaching was the concentration of hydrogen peroxide. The whiteness and hydrophilicity of the treated knitted fabric were evaluated. The whiteness index of the enzymatically bleached fabric was 52 ± 1 °Berger with good hydrophilicity, by capillarity method 5.2 cm in 10 min. The results from this work demonstrate that this process can be an alternative for the textile preparation industry. There is a large reduction in water consumption compared to the conventional process. The water consumption is four times lower than the water consumption of the conventional process.