RT info:eu-repo/semantics/article
T1 Green fractionation and hydrolysis of fish meal to improve their techno-functional properties
A1 Barea Gómez, Pedro
A1 Melgosa Gómez, Rodrigo
A1 Benito Román, Oscar
A1 Illera Gigante, Alba Ester
A1 Beltrán Calvo, Sagrario
A1 Sanz Díez, Mª Teresa
K1 Fish meal protein
K1 Water fractionation
K1 Hydrolysis
K1 Subcritical water
K1 Emulsification
K1 Ingeniería química
K1 Chemical engineering
K1 Alimentos
K1 Food
K1 Biotecnología
K1 Biotechnology
AB A green strategy employing water as solvent has been adopted to obtain protein hydrolysates from fish meal (FM), its water-soluble fraction (WSP), and its non-water-soluble fraction (NSP). The techno-functional properties of the hydrolysates have been investigated and compared to hydrolysates obtained with Alcalase®. In general, SWH hydrolysates presented higher content of free amino acids and higher degree of hydrolysis, which reflected on the molecular size distribution. However, Alcalase® hydrolysates presented better solubility (from 74 ± 4% for NSP at pH = 2 up to 99 ± 1% for WSP at pH = 4–7). According to fluorescence experiments, FM and NSP hydrolysates showed the highest surface hydrophobicity, which has been related to better emulsifying properties and higher emulsion stability. The emulsions stabilized with 2%wt. of SWH-treated NSP showed the smallest particle sizes, with D[4,3] = 155 nm at day 0, and good stability, with D[4,3] = 220 nm at day 7, proving that water fractionation followed by SWH treatment is a good method to improve the techno-functional properties of the hydrolysates.
PB Elsevier
SN 0308-8146
YR 2024
FD 2024-09
LK http://hdl.handle.net/10259/9583
UL http://hdl.handle.net/10259/9583
LA eng
NO The authors acknowledge Sarval Bio-Industries Noroeste, S.A.U. (A Coruña, Spain) for kindly providing the fish meal used in this work and Novozymes A/S for kindly providing the enzyme Alcalase®. This work was supported by the Agencia Estatal de Investigación (AEI) [grant numbers  PID2019-104950RB-I00  and  PID2020-116716RJ-I00 ] by the AEI, Ministerio de Ciencia e Innovación (MICINN) and Next GenerationEU, [grant numbers  TED2021-129311B-I00  and  PDC2022-133443-I00 ] and the Junta de Castilla y León (JCyL) and the European Regional Development Fund (ERDF) [grant number  BU050P20 ]. PB pre-doctoral contract is funded by JCyL and the European Social Fund (ESF) [ ORDEN EDU/1868/2022 ]. RM contract is funded by a Beatriz Galindo Research Fellowship [ BG20/00182 ]. Illera's post-doctoral contract is funded by AEI, MICINN and EU through project  TED2021-129311B-I00 . OBR post-doctoral contract was funded by AEI through project  PID2020–116716RJ-I00 .
DS Repositorio Institucional de la Universidad de Burgos
RD 06-ene-2025