| Titre : |
The treatment of collagen fibre and cattle hide with transglutaminase in supercritical carbon dioxide |
| Type de document : |
texte imprimé |
| Auteurs : |
Cheng Haiming, Auteur ; Wu Lian, Auteur ; Yin Zhonglong, Auteur ; Chen Min, Auteur ; Li Zhiqiang, Auteur |
| Année de publication : |
2014 |
| Article en page(s) : |
p. 216-221 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Collagène
Cuirs et peaux de bovins
Fluides supercritiques
Réticulants
Température de retrait
Transglutaminase
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
It was reported that supercritical fluids could increase the reaction rates and stability of enzymes. The transglutaminase (TGase) was used as a cross-linking agent for collagen fibre and cattle hide in supercritical carbon dioxide (SCF-CO2) medium. The denaturation temperature (Td) and shrinkage temperature (Ts) of the cross-linked samples were determinated. SCF-CO2 could improve the cross-linking reaction of the TGase with the collagen fibre and cattle hide according to the denaturation temperature determination. For collagen fibre, the Td of TG-SCF-Collagen is about 20°C higher than that of TG-Collagen in water medium. While the Td of cattle hide treated with TGase in SCF-CO2 is about 10°C higher than that of in water medium. Interestingly, the shrinkage temperature of the cattle hide did not show any change while it was treated by TGase both in SCF-CO2 medium and in water. However, the appearence of the hide after TGase treatment was tighter and finer with the area reduction. The results implied that intermolecular cross-linking created by TGase did not like the cross-linking by chrome (III)tanning agents, which formed rigid structures among the collagen fibrils that play the main role for the increase of shrinkage temperature of leather. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials - Collagen fibre treated with TGase in SCF-CO2 - Cattle hide treated by TGase in SCF-CO2 - Differential Scanning Calorimetry (DSC) - Determination of the shrinkage temperature - Appearance - Physical properties determination
- RESULTS AND DISCUSSION : Collagen fibre treated by TGase in SCF-CO2 - Cattle hide treated with TGase in SCF-CO2 |
| En ligne : |
https://drive.google.com/file/d/1_LvTHftpV-xR6GWNHBdkPlVwSLotld8u/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22273 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 98, N° 5 (09-10/2014) . - p. 216-221
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The treatment of collagen fibre and cattle hide with transglutaminase in supercritical carbon dioxide in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 5 (09-10/2014)
