RT Journal Article
T1 Aqueous extracts characteristics obtained by ultrasound-assisted extraction from Ascophyllum nodosum seaweeds: effect of operation conditions
A1 Gisbert Verdú, Mauro
A1 Barcala García, Manuel
A1 Rosell, Cristina M.
A1 Sineiro Torres, Jorge
K1 Antioxidant
K1 Box-Behnken design
K1 Carbohydrates
K1 Extraction
K1 Phaeophyceae
K1 Polyphenols
K1 Sonication
K1 Uronic acids
AB Aqueous extracts from Ascophyllum nodosum brown edible seaweeds were obtained after continuous ultrasound-assisted extraction. The effect of sonication time (from 2 to 6 min), sonication amplitude (from 80 to 100%) and solvent-solid ratio (from 20 to 40 g water g−1 dried seaweed) on the extracts features was studied employing a Box-Behnken experimental design. Extracts were characterised by polyphenols, carbohydrate and uronic acid content. Response surface method (by means of a quadratic model) was successfully employed to relate chemical composition of extracts and operation conditions. Optimal experimental conditions were established to obtain maximal polyphenols content and several polyphenols-carbohydrates ratios together with the conditions that minimise energy consumption per extracted polyphenols amount relationship. Antioxidant capacities of extracts were measured employing different methods (DPPH, FRAP and ABTS). Positive linear correlations between antioxidant activity and total polyphenols content were established
PB Springer
SN 0921-8971
YR 2021
FD 2021
LK http://hdl.handle.net/10347/28990
UL http://hdl.handle.net/10347/28990
LA eng
NO Journal of Applied Phycology 33, 3297–3308 (2021). https://doi.org/10.1007/s10811-021-02546-5
NO Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work was supported by the Ministry of Science and Innovation of Spain and European Regional Development Fund (ERDF) of European Union by the research project (RTI2018-095919-B-C2) and Xunta de Galicia, Spain (Consolidation Project ED431B 2019/01)
DS Minerva
RD 24 abr 2026