2024-03-29T00:31:18Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1761522022-03-25T10:51:18Zcom_10261_47com_10261_8col_10261_300
DIGITAL.CSIC
author
Blanco Comesaña, M.
author
Vázquez, José Antonio
author
Pérez Martín, Ricardo Isaac
author
González Sotelo, Carmen
funder
Consejo Superior de Investigaciones Científicas (España)
funder
European Commission
funder
Xunta de Galicia
2019-02-15T07:54:06Z
2019-02-15T07:54:06Z
2019-01-09
Marine Drugs 17(1): 40 (2019)
1660-3397
http://hdl.handle.net/10261/176152
10.3390/md17010040
http://dx.doi.org/10.13039/501100000780http://dx.doi.org/10.13039/501100003339http://dx.doi.org/10.13039/501100010801
30634550
The small-spotted catshark is one of the most abundant elasmobranchs in the Northeastern Atlantic Ocean. Although its landings are devoted for human consumption, in general this species has low commercial value with high discard rates, reaching 100% in some European fisheries. The reduction of post-harvest losses (discards and by-products) by promotion of a full use of fishing captures is one of the main goals of EU fishing policies. As marine collagens are increasingly used as alternatives to mammalian collagens for cosmetics, tissue engineering, etc., fish skins represent an excellent and abundant source for obtaining this biomolecule. The aim of this study was to analyze the influence of chemical treatment concentration, temperature and time on the extractability of skin collagen from this species. Two experimental designs, one for each of the main stages of the process, were performed by means of Response Surface Methodology (RSM). The combined effect of NaOH concentration, time and temperature on the amount of collagen recovered in the first stage of the collagen extraction procedure was studied. Then, skins treated under optimal NaOH conditions were subjected to a second experimental design, to study the combined effect of AcOH concentration, time and temperature on the collagen recovery by means of yield, amino acid content and SDS-PAGE characterization. Values of independent variables maximizing collagen recovery were 4 °C, 2 h and 0.1 M NaOH (pre-treatment) and 25 °C, 34 h and 1 M AcOH (collagen extraction).
openAccess
Fish discards
Fish by-products
Collagen
Cosmetic applications
Experimental designs
Response surface methodology
Collagen Extraction Optimization from the Skin of the Small-Spotted Catshark (S. canicula) by Response Surface Methodology
artículo
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URL
https://digital.csic.es/bitstream/10261/176152/1/marinedrugs-17-00040-v2.pdf
File
MD5
1ae97e23a6615d99c961f36295d00a44
2354760
application/pdf
marinedrugs-17-00040-v2.pdf