| Titre : |
Purification of proetin hydrolyzate recovered from chrome tanned leather shaving waste |
| Type de document : |
texte imprimé |
| Auteurs : |
Rubina Chaudhary, Auteur ; Anupama Pati, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 10-16 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Déchets industriels -- Recyclage
Hydrolysats de protéines
Précipitation (chimie)
Produits chimiques -- Purification
Tannage -- Déchets
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Environmental constraints have become key issue for sustenance of industries worldwide. Waste management approach insists tanners look for an innovative way of creating wealth from waste. Chrome tanned leather shavings (CTLS) are generated in leather making process and requires a major attention on disposal. There are developed processes for recovery of protein and chromium from CTLS through acid/ alkaline/enzymatic hydrolysis process. However, the derived protein hydrolyzate contains impurities such as chromium and neutral salts. In this study, an attempt has been made to purify protein hydrolyzate through protein precipitation process. Protein purification studies have been carried out to study the influence of factors such as salt concentrations, pH and time. The purity of protein hydrolyzate before and after purification process is found to be 95 and 99.4% respectively. This is further evidenced from amino acid analysis of protein hydrolyzate before and after purification. The recovered protein hydrolyzate could be used in a wide range of products such as fertilizer, animal feed and bio-composites. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Extraction of protein hydrolyzate from chrome shavings through biochemical process - Purification of protein hydrolyzate derived from biochemical process : optimization of nature of salt, concentrations of salt and protein hydrolyzate, time and pH - Pilot trials - Characterization of protein hydrolyzate before and after purification
- RESULTS AND DISCUSSION : Underlying principles of protein precipitation through saltin out - Effect of nature of salts - Optimization of salt concentration for protein precipitation - Optimization of concentration of proteinous substance - Optimization of time for protein precipitation - Effect of pH on protein precipitation - Pilot trials |
| En ligne : |
https://drive.google.com/file/d/1yCvBSSC1qlQKNwKw0vWkxpoeIgGrRR7d/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25273 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXI, N° 1 (01/2016) . - p. 10-16
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Purification of proetin hydrolyzate recovered from chrome tanned leather shaving waste in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 1 (01/2016)
