| Titre : |
Characterization of products isolated by enzyme treatment of chromium-containing leather waste |
| Type de document : |
texte imprimé |
| Auteurs : |
Maryann M. Taylor, Auteur ; Edward J. Diefendorf, Auteur ; Eleanor M. Brown, Auteur ; William N. Marmer, Auteur |
| Année de publication : |
1992 |
| Article en page(s) : |
p. 380-388 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Enzymic processing of chrome shavings and trimmings has previously been shown to be a viable treatment of this substantial waste product generated by the tanning industry.Characterization of the chrome cakes ant the protein generated by these treatments was an important next step in this research.Tanneries use different type of processes to tan the leather and these varying processes are dependent on the type of chrome should be present in the effluent.Chrome shavings were obtained from three tanneries.The blue stock had been processed by conventional, albeit different, tannages.For optimal solubility, an individual pretreatment was developed for each type of shavings.They were then treated enzymically and the chrome cake and the protein fraction were isolated.Analyses of the shavings,the chromium-containing cakes and the protein fraction showed that chromium containing leather waste from a variety of sources can be enzymically digested when the appropriate pretreatment is performed.The chemical composition of the isolated products is dependent on the type of treatment and on the composition of the original chromium-containing leather waste product. |
| En ligne : |
https://drive.google.com/file/d/10VQ5_h8DSqgvmHLdCL5fTyHAm3Cde5px/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8283 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVII, N° 10 (10/1992) . - p. 380-388
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Characterization of products isolated by enzyme treatment of chromium-containing leather waste in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVII, N° 10 (10/1992)
