| Titre : |
Utilization of leather waste - animal feedstuff for chrome shavings : Part 1, pilot plant study |
| Type de document : |
texte imprimé |
| Auteurs : |
M. Alves dos Reis, Auteur ; V. Beleza, Auteur |
| Année de publication : |
1991 |
| Article en page(s) : |
p. 15-19 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
In this paper we present experimental results on the hhydrolysis of chrome tanned shavigs.
It was observed that it is possible to remove chromium down to negligible values (less than 0.1 ppm) when hydrolysis is performed by heating the shavings at 80°C in calcium oxide liquors using the following weight proportions : 0.08 to 0.1 parts CaO, 1 part dried chrome shavings (equivalent to 21 parts wet shavings), 10 parts water. A protein concentrate containing about 80 % crude protein and 25 % essential amino acids was obtained.
An animal nutrition program to study the possible uses of this product was initiated. To obtain enough protein concentrate for this program a pilot plant has been designed and built.
Chicken feeding results have shown that the nutritional value of hydrolysed leather meal is nearly one half of thenutritional value of 44 % protein soybean oil meal and, when used in rations up to a level of 5 % has not caused any loss of appetite or visible metabolic problems to the animals. |
| En ligne : |
https://drive.google.com/file/d/17Sp_Qp3QnmVeT_X_eeMrQWLmVsYqKft2/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8653 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 75, N° 1 (01-02/1991) . - p. 15-19
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Utilization of leather waste - animal feedstuff for chrome shavings : Part 1, pilot plant study in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 75, N° 1 (01-02/1991)
