[article]
| Titre : |
Solubilization of steer and kip hair recovered by the sirolime process |
| Type de document : |
texte imprimé |
| Auteurs : |
Kohkichi Uehara, Auteur ; Ayako Matsunaga, Auteur ; Katsuhiko Arai, Auteur |
| Année de publication : |
1987 |
| Article en page(s) : |
p. 77-85 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Based on the results reported in the previous paper (1), three kinds of conditions were selected for the solubilization of keratins by oxidative treatment with performic acid and reductive treatment with sodium thioglycolate, and under these conditions, the air recovered by the SIROLIME process was solubilized. The solubilities of the recovered steer and kip was less soluble than that from hairs. The intact and recovered hair from kip was less soluble than that from steer. Further, the intact and recovered hair and fibers from steer and kip were observed with scanning electron microscope. It was shown that the medulla did not occur in fine hair fibers from kip, the ratio of the cross selectional area of medulla to that of cortex was smaller in the recovered hair than in the intact hair, and the cuticle was damaged more vigorously in the case of treatment with performic acid than in the case of treatment with thioglycolate. Amino acid analyses of the hairs recovered from steer and kip by the SIROLIME process revealed that the content of cystine decreased and new amino acid, lanthionine, was formed during the process. The quantity of lanthionine increased as the liming time was prolonged.
These results indicate that it is better to adopt the oxidative solubilization method rather than the reductive one with thioglycolate for the intention of the effective utilization of the recovered hair by the modification of solubilized hair keratins. |
| En ligne : |
https://drive.google.com/file/d/18Roq1jy_Nh-oySmvG4QfbQXr0SATyAIz/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8983 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXII (Année 1987) . - p. 77-85
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Solubilization of steer and kip hair recovered by the sirolime process in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXII (Année 1987)
