| Titre : |
The effect of glucose oxidase enzyme on wool fibres |
| Type de document : |
texte imprimé |
| Auteurs : |
Berrak Buket Avci, Auteur ; Gökhan Erkan, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 147-164 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Agents de blanchiment
Colorimétrie
Fibres textiles -- Analyse
Glucose oxydaseLa glucose oxydase (GOx, GOD) est une enzyme oxydo-réductase (EC 1.1.3.4) qui catalyse l'oxydation du glucose en peroxyde d'hydrogène et en D-glucono-δ-lactone. Dans les cellules, elle participe à cliver les sucres (oses), notamment le saccharose (Glc-Fru) en métabolites.
La GOx est largement utilisée pour déterminer la concentration en glucose libre dans les fluides corporels (diagnostic), et dans les aliments (industrie). Elle a de nombreuses applications en biotechnologies, typiquement les tests enzymatiques de biochimie.
Jaunissement (défaut)
Laine
Résistance au lavage
Teinture -- Fibres textiles
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Glucose oxidase is a type of enzyme that converts glucose into hydrogen peroxide and gluconic acid by enzymatic reaction. Glucose oxidase is widely used in industry; however, in the textile industry, glucose oxidase has only received academic interest. Previously, wool was bleached by some reducing agents; however, currently in industry, hydrogen peroxide dominates the bleaching of wool fibres. In this study, the effect of glucose oxidase enzyme treatment on wool merino fibres and dyeability properties was investigated. Wool fibres were treated with glucose oxidase enzyme, after which the whiteness index (Stensby) and yellowness index (ASTM D 1925 and ASTM E 313) were investigated. Scanning electron microscopy and scanning electron microscopy with energy dispersive X-ray spectroscopy were used to identify the morphological structure of wool fibres and their atomic content. The chemical damage caused by enzyme was investigated using a fluorescence and a light microscope, and the alkali solubility (ASTM D 1283) was determined. After enzymatic treatment, the wool fibres were dyed at a 2.0% concentration with reactive dyes. Dyeability (K/S) and CIELab values were assessed with a Minolta CM 3600 D spectrophotometer (D65, 10°). The washing fastness of wool fibres was investigated according to TS EN ISO 105-C06 (A1S). |
| Note de contenu : |
- SEM and SEM-EDX
- Fluorescence and optical microscope images
- Alkali solubility
- Colorimetric measurements, whiteness and yellowness indices
- Washing fastness
- FTIR analyses
- Table 1 : Wool scouring process
- Table 2 : CIELab, whiteness index and yellowness index values for the first group of treated and/or dyed wool samples
- Table 3 : CIELab, whiteness index and yellowness index values for the second group of treated and/or dyed wool samples
- Table 4 : Washing fastness results for the first group of dyed wool samples
- Table 5 : Washing fastness results for the second group of dyed wool samples |
| DOI : |
https://doi.org/10.1111/cote.12658 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12658 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39527 |
in COLORATION TECHNOLOGY > Vol. 139, N° 2 (04/2023) . - p. 147-164
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The effect of glucose oxidase enzyme on wool fibres in COLORATION TECHNOLOGY, Vol. 139, N° 2 (04/2023)
