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Título

By-products of Scyliorhinus canicula, Prionace glauca and Raja clavata: A valuable source of predominantly 6S sulfated chondroitin sulfate

AutorNovoa-Carballal, Ramón; Pérez Martín, Ricardo Isaac ; Blanco, M. ; González Sotelo, Carmen ; Fassini, Dario; Nunes, Cláudia; Coimbra, Manuel A.; Silva, Tiago H.; Reis, Rui L.; Vázquez, José Antonio
Palabras claveChondroitin sulfate
Elasmobranch
Scyliorhinus canicula
Prionace glauca
Raja clavata
Sulfation position
Fecha de publicación2016
EditorElsevier
CitaciónCarbohydrate Polymers 157: 31-37 (2016)
ResumenChondroitin sulfate (CS) was isolated from Scyliorhinus canicula (fin, head and skeleton), Prionace glauca (head), and Raja clavata (skeleton) by-products from fish processing industry using environmentally friendly processes. The molecular weight was determined by gel permeation chromatography and the sugar composition and sulfation position by NMR and SAX-HPLC after enzymatic digestion. The CSs showed a prevalent 6S GalNAc sulfation for the 3 species (4S/6S ratio lower than 1). A higher 6S sulfation was observed for P. glauca head and R. clavata skeleton (4S/6S ratio below 0.20) than for S. canicula (4S/6S ratio ca. 0.6). The existence of CS samples with such low 4S/6S ratio has only been observed before in a rare species of shark (Mitsukutina owatoni, globin shark). The good extraction yields achieved make S. canicula, P. glauca and R. clavata fish industry by-products a useful source of 6-sulfated chondroitin sulfate
Descripción7 páginas, 3 tablas, 4 figuras
Versión del editorhttp://dx.doi.org/10.1016/j.carbpol.2016.09.050
URIhttp://hdl.handle.net/10261/138022
DOI10.1016/j.carbpol.2016.09.050
ISSN0144-8617
E-ISSN1879-1344
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