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Título

Production of Chondroitin Sulphate from Head, Skeleton and Fins of Scyliorhinus canicula By-Products by Combination of Enzymatic, Chemical Precipitation and Ultrafiltration Methodologies

AutorBlanco Comesaña, M.; Fraguas, Javier CSIC; González Sotelo, Carmen CSIC ORCID ; Pérez Martín, Ricardo Isaac CSIC ORCID; Vázquez, José Antonio CSIC ORCID
Palabras claveChondroitin sulphate production
Cartilage S. canicula wastes
By-products upgrade
Process optimization
Response surface methodology
Fecha de publicación2015
EditorMultidisciplinary Digital Publishing Institute
CitaciónMarine Drugs 13(6): 3287-3308 (2015)
ResumenThis study illustrates the optimisation of the experimental conditions of three sequential steps for chondroitin sulphate (CS) recovery from three cartilaginous materials of Scyliorhinus canicula by-products. Optimum conditions of temperature and pH were first obtained for alcalase proteolysis of head cartilage (58 °C/pH 8.5/0.1% (v/w)/10 h of hydrolysis). Then, similar optimal conditions were observed for skeletons and fin materials. Enzymatic hydrolysates were subsequently treated with a combination of alkaline hydroalcoholic saline solutions in order to improve the protein hydrolysis and the selective precipitation of CS. Ranges of 0.53–0.64 M (NaOH) and 1.14–1.20 volumes (EtOH) were the levels for optimal chemical treatment depending on the cartilage origin. Finally, selective purification and concentration of CS and protein elimination of samples obtained from chemical treatment, was assessed by a combination of ultrafiltration and diafiltration (UF-DF) techniques at 30 kDa
Descripción22 páginas, 5 figuras, 8 tablas.-- This is an open access article distributed under the Creative Commons Attribution License
Versión del editorhttp://dx.doi.org/10.3390/md13063287
URIhttp://hdl.handle.net/10261/124353
DOI10.3390/md13063287
ISSN1660-3397
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