RT info:eu-repo/semantics/article
T1 Potential of Subcritical Water Hydrolysis to Valorize Low-Valued Ray-Finned Fish (Labeobarbus nedgia): Effects of Hydrolysis Temperature and Pressurization Agent
A1 Tadesse, Solomon Abebaw
A1 Emire, Shimelis Admassu
A1 Barea Gómez, Pedro
A1 Illera Gigante, Alba Ester
A1 Melgosa Gómez, Rodrigo
A1 Beltrán Calvo, Sagrario
A1 Sanz Díez, Mª Teresa
K1 Low valued ray-finned fish
K1 Subcritical water hydrolysis
K1 Nitrogen
K1 Carbon dioxide
K1 Degree of hydrolysis
K1 Pressurization agent
K1 Ingeniería química
K1 Chemical engineering
K1 Alimentos
K1 Food
K1 Biotecnología
K1 Biotechnology
AB Subcritical water (SCW) hydrolysis was applied to valorize the low-valued ray-finned fish (Labeobarbus nedgia) into valuable protein hydrolysates, employing N2 and CO2 as pressurization agents at varying temperatures (140, 160, 180, and 200 °C). The degree of hydrolysis (DH) and total free amino acid content increased with temperature for both pressurizing agents. The highest DH (54.5 ± 0.4%) and total free amino acid content (210 ± 1 mg/gprot) were observed at 200 °C when CO2 gas was used as the pressurizing agent. Predominantly, glycine and alanine were released for both pressurizing agents. The antioxidant activity, evaluated through three different assays, increased with temperature and was found to be the highest at 200 °C. This study illustrated the advantages of the intensified SCW technology by using CO2 as a pressurization agent in valorizing low-valued ray-finned fish (Labeobarbus nedgia), as animal residue rich in proteins, for the production of valuable protein hydrolysates with a high fraction of valuable free amino acids, which could offer potential applications as a functional ingredient in the food industry.
PB MDPI
SN 2304-8158
YR 2024
FD 2024-05-09
LK http://hdl.handle.net/10259/9181
UL http://hdl.handle.net/10259/9181
LA eng
NO This work was funded by the Agencia Estatal de Investigación (AEI) and Ministerio de Ciencia e Innovación (MICINN) [grant number PID2022-136385OB-I00], by the AEI, MICINN, UE NextGenerationEU (Plan de Recuperación, Transformación y Resiliencia) [grant numbers TED2021-129311B-I00 and PDC2022-133443-I00] and by the Junta de Castilla y León (JCyL) and the European Regional Development Fund (ERDF) [grant number BU027P23]. The Pedro Barea predoctoral contract was funded by JCyL and the European Social Fund (ESF) by ORDEN EDU/1868/2022, de 19 de diciembre. Alba Ester Illera post-doctoral contracts were funded by JCyL and ERDF through project BU027P23. Rodrigo Melgosa contract was funded by a Beatriz Galindo Research Fellowship [BG20/00182].
DS Repositorio Institucional de la Universidad de Burgos
RD 28-jun-2024