RT Journal Article
T1 Application of Pulsed Electric Fields for Obtaining Antioxidant Extracts from Fish Residues
A1 Franco Ruiz, Daniel
A1 Munekata, Paulo E. S.
A1 Agregán Pérez, Rubén
A1 Bermúdez Piedra, Roberto
A1 López-Pedrouso, María
A1 Pateiro Moure, Mirian
A1 Lorenzo Rodríguez, José Manuel
K1 Sea Bream
K1 Sea Bass
K1 By-Products
K1 Antioxidant Capacity
K1 Amino Acid
AB Fish processing has serious economic and environmental costs in the food supply chain. It is necessary to find new ways to convert fish residue to added-value products, especially for main aquaculture species. In this study, a pulsed electric field (PEF) process for antioxidant extract production from three residues (gills, bones, and heads) of two commercial species (sea bream and sea bass) was tested. Three methods of extraction using two solvents (water and methanol) and a water extraction assisted by PEF were assessed. Chemical and mineral compositions, as well as amino acid profile of the by-products, were determined. In addition, four in vitro antioxidant methods, 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity (DPPH), 2,2-azinobis-(3-ethyl-benzothiazoline-6-sulphonate radical (ABTS), ferric reducing antioxidant power assay (FRAP), and oxygen radical absorbance capacity assay (ORAC), were used to evaluate the extracts. Antioxidant activity was confirmed by DPPH and ABTS and FRAP tests, obtaining the highest values for residues from the sea bream species. ORAC values were higher in methanol than in water solvent. In general, gills were the residues with the greatest antioxidant activity for the four antioxidant assays employed. For DPPH assay, the extracts of water assisted by PEF from heads, bones, and gills yielded significant increases of 35.8%, 68.6%, and 33.8% for sea bream and 60.7%, 71.8%, and 22.1% for sea bass, respectively, with respect to water extracts. Our results suggest that PEF would be an environmentally friendly and economic choice for antioxidant-extract production from low-value by-products from fish processing
PB MDPI
YR 2020
FD 2020
LK http://hdl.handle.net/10347/21940
UL http://hdl.handle.net/10347/21940
LA eng
NO Franco, D.; Munekata, P.E.S.; Agregán, R.; Bermúdez, R.; López-Pedrouso, M.; Pateiro, M.; Lorenzo, J.M. Application of Pulsed Electric Fields for Obtaining Antioxidant Extracts from Fish Residues. Antioxidants 2020, 9, 90.
NO His research received external funding by the EU Commission through the BBI-JU H2020 Project AQUABIOPRO-FIT “Aquaculture and agriculture biomass side stream proteins and bioactives for feed, fitness and health promoting nutritional supplements” (Grant Agreement no. 790956). Authors would like to acknowledge to GAIN (Axencia Galega de Innovación, Xunta de Galicia, Spain) for supporting this review (grant number IN607A2019/01). Paulo E.S. Munekata acknowledges postdoctoral fellowship support from the Ministry of Economy and Competitiveness (MINECO, Spain) “Juan de la Cierva” program (FJCI-2016-29486)
DS Minerva
RD 24 abr 2026