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Enzymatic Recycling of Starch‐Containing Desizing Liquors
Author(s) -
Opwis Klaus,
Knittel Dierk,
Kele Annemarie,
Schollmeyer Eckhard
Publication year - 1999
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/(sici)1521-379x(199910)51:10<348::aid-star348>3.0.co;2-k
Subject(s) - chemistry , starch , glucose oxidase , textile , pulp and paper industry , enzyme , food science , organic chemistry , materials science , engineering , composite material
Starch‐containing desizing liquors from the pretreatment of cotton fabrics can be transformed into bleaching liquors by a two‐stage enzymatic treatment. The bleaching ability of these liquors is comparable to that of conventional bleaching liquors. The process results in saving of ecologically harmful chemicals and process water. In enzymatic textile processes a loss of enzyme activity occurs, due to the presence of ionic surfactants. This loss of activity can be counteracted by addition of cyclodextrins. Trials have been done to immobilize glucose oxidase on the cheap carrier material cotton, so it can be used more often than only one time as regenerable enzyme.