Mojsov, Kiro (2019) Enzymatic desizing, bioscouring and enzymatic bleaching of cotton fabric with glucose oxidase. The Journal of the Textile Institute, 110 (7). pp. 1032-1041. ISSN 0040-5000 (Print), 1754-2340 (Online)
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Abstract
The sized cotton fabric was enzymatically desized, scoured and bleached with an enzyme mixture of
starch degrading enzymes, pectinases and glucose oxidases (GOxs) was added to generate hydrogen
peroxide (HP). In this study, enzyme selection and process optimisation was made in order to increase
the glucose content of the desizing liquor of a starch-sized cotton fabric. The highest glucose concentration of 4175 mg/L was measured in one-bath containing mixture of a-amylase, amyloglucosidase
and pectinase and GOx produced 758 mg/L peroxide. This combination was used in further bleaching
processes. For bleaching, hydrogen peroxide was converted into peracetic acid (PAA) by incorporating
the bleach activator tetraacetylethylenediamine (TAED). Whiteness values, water absorbency, polymerization degree and tenacity at maximum load were measured on pre-treated samples. The total
organic carbon (TOC), chemical oxygen demand (COD), biological oxygen demand (BOD5), the biological degradability (BOD5/COD) and the final pH values were measured on residual pre-treatment baths.
| Item Type: | Article |
|---|---|
| Subjects: | Engineering and Technology > Industrial Biotechnology Engineering and Technology > Materials engineering |
| Divisions: | Faculty of Technology |
| Depositing User: | Kiro Mojsov |
| Date Deposited: | 10 Sep 2019 09:17 |
| Last Modified: | 10 Sep 2019 09:17 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/22454 |
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