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Title: A comparative study of two wool enzyme treatments
Authors: Jovancic, P
Jocic, D
Molina, R
Manich, A
Sauri, R
Julia, M R
Erra, P
Keywords: Enzymes;FTIR/ATR study;Physico-mechanical properties;Scanning electron microscopy;Wool
Issue Date: Dec-2002
Publisher: NISCAIR-CSIR, India
Abstract: The influence of enzyme concentration and treatment time on certain wool properties has been studied according to the Box-Hunter experimental design in order to better understand the wool modification caused by two different enzymatic multi-purpose formulations (enzyme A and enzyme B). It is observed that enzyme concentration and treatment time exert an influence on wool whiteness, shrink resistance, weight loss and urea bisulphite solubility. The enzyme concentration has a decisive influence on wool modification when enzyme A is applied, and on the treatment time when enzyme B is applied. Tensile strength properties and SEMs suggest that enzyme B can attack the non-keratinic parts of wool fibre structure. No significant degradation of cortical or even cuticular cells is observed after enzyme A treatment. Accordingly, enzyme A could be applied all over the experimental zone whereas in the case of enzyme B, the enzyme concentration over 5% and treatment time over 60 min should be avoided. FTIR/ATR analysis confirms that there is no significant change in the redox state of cystine disulphide bonds at the wool surface after the enzyme treatment.
Page(s): 408-416
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Appears in Collections:IJFTR Vol.27(4) [December 2002]

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