| Titre : |
In situ spectroscopic study on the effect of UV radiation on stabilized collagen fibre : role of plant tannin |
| Type de document : |
texte imprimé |
| Auteurs : |
Liang Zhongyin, Auteur ; Shan Zhihua, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 210-214 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Collagène -- Effets du rayonnement ultraviolet
Fourier, Spectroscopie infrarouge à transformée de
Tanins végétaux
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Ultraviolet-visible diffuse reflection (UV-Vis DR) spectroscopy and Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) spectroscopy were employed to investigate the influence of deleterious UV radiation on the pure collagen fibre and plant tannin crosslinked collagen fibre. After exposure to UV radiation, the UV-Vis abosorption intensity of the pure collagen fibre is found to be dramatically increased at eh peak of 280nm, which should be attributed to the increase of photo-products of free tyrosine and phenylamine formed by UV radiation damage. However, the damage effect on collagen fibre is significantly hindered in the presence of barberry tannin. On the other hand, the study of ATR FT-IR spectroscopy also showed that the intensities of amid bands (amide A, B, I and II) of pure collagen fibre. In addition, the weakness tannin stabilized collagen fibre are less than those in the case of pure collagen fibre. In addition, the weakness of C-O-H in-plane deformation vibration and the stretching vibration of phenolic hydroxyls suggested that the UV protection effect of barberry tannin on collagen fibre should be closely related to the photoxidation of phenolichydroxyls in bayberry tannin molecule. |
| Note de contenu : |
- EXPERIMENTAL PROCEDURES : Materials - UV irradiation - UV-Vis DR spectroscopic measurements - ATR FT-IR spectroscopic measurements
- RESULTS AND DISCUSSION : UV-vis DR spectra analysis - ATR- FT-IR spectral analysis |
| En ligne : |
https://drive.google.com/file/d/1m-dKDrpLvyHKSaM6m8GjPMPf4pRWQXth/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16202 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 5 (09-10/2012) . - p. 210-214
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