| Titre : |
On the shrinkage kinetic of collagen |
| Type de document : |
texte imprimé |
| Auteurs : |
Guillermo O. Sarli, Auteur ; J. Raul Grigera, Auteur |
| Année de publication : |
1976 |
| Article en page(s) : |
p. 113-117 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Collagène -- Stabilité
Température de retrait
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The shrinkage kinetic of collagen was first used by Weiri to measure the activation enthalpy and entropy of the fibre-random coil transition of collagen.
The early results shown a relative simple kinetic, characterised by a single parameter, namely the half time of the process. Later on, a more sophisticated inter-pretation of the kinetic was suggested. The curves shown in these works are very simple.
The stability of collagen fibres is widely measured by means of the shrinkage temperature. This parameter is very easy to measure and, if the process is as simple as was described, it may well characterise the transition with enough accuracy. It is probable that on this account there have not been many new works published on shrinkage kinetic.
However, by using a more refined measuring method to follow the shrinkage kinetic, we can show that the denaturation of collagen fibres is a process too complex to be characterised by the shrinkage temperature.
The present note is intended to give some details of the measuring technique. |
| Note de contenu : |
- Fig. 1 : Diagram of the apparatus
- Fig. 2(a) : Shrinkage kinetic of rat tail tendon hydrated 24h in bidistilled water. (a) Shrunk in water
- Fig. 2(b) : Shrunk in aqueous solution of dioxane 4.100 molal. |
| En ligne : |
https://drive.google.com/file/d/1NBQSXEFcgv_cWRfShkCnoB3elCrpObb0/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34116 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 60, N° 4 (07-08/1976) . - p. 113-117
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