| Titre : |
The action of pancreatin on collagen fibres and interfibrillary substance during bating |
| Type de document : |
texte imprimé |
| Auteurs : |
Ding Haiyan, Auteur ; Liang Chengjian, Auteur |
| Année de publication : |
2006 |
| Article en page(s) : |
p. 47-53 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Chimie analytique
Collagène
ConfitageLe confitage est une action biochimique effectuée au moyen de produits enzymatiques, qui a pour but de dégrader les fibres élastiques, contribuant ainsi à augmenter la souplesse du cuir. En outre, les enzymes complètent la dégradation des résidus épidermiques, donnant ainsi une fleur plus propre et plus lisse.
Cuirs et peaux de chèvres
Hydrolyse
Hydroxyproline
Pancréatine
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
In order to illustrate the functions of pancreatin in the bating process during leather manufacture, we used TEM and SEM to observe the histological changes of collagen fibres of goatskin at the ultrastructural level under different bating conditions. Chemical analysis was simultaneously used to illustrate the action of pancreatin on interfibrillary substance and collagen protein. The results showed that the interfibrillary substance was removed and the collagen fibre structure was moderately opened-up under normal bating conditions. The removal of the interfibrillary substance aids in the opening-up of the collagen fibre structure.
Pancreatin has an obvious hydrolytic effect on mucin, mucoid and collagenous substance too. Excessive concentrations of pancreatin are beneficial to the removal of non-fibrous substance, i.e., the interfibrillary substance but, this excessive treatment can cause loss of collagen protein and damage of the collagen fibres making the collagen fibre structure over opened-up. Thus in conditions with excess pancreatin, the final result may be leather with an empty handle. This study provides a basis of ultrastructure and serves as scientific guidance for selection of chemicals and technique design for goat shoe upper leather manufacture and offers a reference to other related studies. |
| Note de contenu : |
- EXPERIMENTAL METHODS : Sample preparation - Sampling and fixation - Specimen preparation for TEM and SEM - Determination of hydroxy-proline - Determination of reducing sugar(R.S.)
- RESULTS AND DISCUSSION : The removal of the interfibrillary substance during the bating process - Comparison of the opening-up of the collagen fibre structure and change of collagenous fibrils under various - The hydrolyzing effect of pancreatin on collagenous substance
bating systems
- Table 1 : Bating scheme
- Table 2 : The R.S. hydrolyzed from skin during the different bating process
- Table 3 : The quantity of hydroxyproline in the liquors after bating process |
| En ligne : |
https://drive.google.com/file/d/1LuTBW1LRMkRp_DFx43EjM--trENxKJ7M/view?usp=share [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39156 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 90, N° 2 (03-04/2006) . - p. 47-53
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The action of pancreatin on collagen fibres and interfibrillary substance during bating in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 2 (03-04/2006)
