[article]
| Titre : |
Modified collagen hydrolysate, potential for use as a filler for leather |
| Type de document : |
texte imprimé |
| Auteurs : |
Wuyong Chen, Auteur ; Peter H. Cooke, Auteur ; Gary L. DiMaio, Auteur ; Maryann M. Taylor, Auteur ; Eleanor M. Brown, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 262-267 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Partially hydrolyzed collagen, previously extracted from chromium-containing leather waste, in which more than 50% of the fragments had molecular weights less than 21 kDa, was chemically modified with glutaraldehyde (0 to 18%). Glutaraldehyde, even at low concentration (6%), formed intermolecular crosslinks, as evidenced by a shift in the molecular weight distribution to higher weights. The 12% glutaraldehyde-hydrolysate protein (12% GHP) was used in a demonstration of leather filling. 12% GHP adhered better to chrome tanned calfskin from both back and flank areas than did 0% glutaraldehyde-hydrolysate (HP). To visualize the filling effect, 12% GHP and HP were labeled with a fluorescent dye, and treated leather samples evaluated by fluorescence microscopy. The results suggested a potential for this material as a filler for leather, but were difficult to interpret clearly. To better utilize the sensitivity of fluorescence techniques, additional experiments were performed using a low quality recovered gelatin (90 Bloom; more than 50% of the fragments had molecular weights less than 50 kDa). Gelatin was fluorescently labeled prior to crosslinking. Microscopy showed that in samples treated with 0% glutaraldehyde-gelatin, the fluorescence was localized on the inner surface of veins, whereas with 0.5% glutaraldehyde-gelatin the fluorescence filled the entire cross section of the vein. The results suggest that with appropriate treatment, the small fragment-proteinaceous material recovered from solid leather waste could be used in further leather production. |
| En ligne : |
https://drive.google.com/file/d/1v4N2bVNaolS3DkQlyohVh1TBzum5k2se/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4369 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCVI, N° 7 (07/2001) . - p. 262-267
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Modified collagen hydrolysate, potential for use as a filler for leather in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVI, N° 7 (07/2001)
