@misc{10481/88527,
year = {2019},
url = {https://hdl.handle.net/10481/88527},
abstract = {Fish processing industry generates a considerable amount of by-products which represent an environmental
problem. Only a small portion of these residues is used for the production of low marketable products.
Therefore, industrially scalable processes yielding value-added products would be highly desirable. Different
to others studies, this work deals with potential valorisation of bullet tuna (Auxis rochei) viscera using
its endogenous enzymes without previous separation stage for the production of bioactive hydrolysates.
Functional and bioactive properties of hydrolysates produced at different degree of hydrolysis (DH 3%,
6% and 9%) were evaluated. The endogenous enzyme hydrolysates (EH) obtained by the proposed low
cost treatment were compared with hydrolysates produced with a well-known commercial enzyme: subtilisin.
Regarding functional properties, EH presented similar or even better solubility, emulsifying and oil
binding capacities than subtilisin hydrolysate (SH). EH also showed very interesting antioxidative properties,
particularly metal reducing and radical scavenging activity. Additionally, the ACE inhibitory activity
of EH at low degree of hydrolysis was comparable to SH. According to these results, bullet tuna viscera
protein can be value-added by endogenous enzyme hydrolysis.},
organization = {Spanish National Plan I+D+i (project CTQ2014-53615-R)},
organization = {Regional Plan Junta de Andalucıa (project P12-AGR-1993)},
publisher = {Wiley},
keywords = {ACE-inhibitory activity},
keywords = {antioxidant activity},
keywords = {endogenous enzymes},
keywords = {fish by-products},
keywords = {functional properties},
title = {Valorisation of tuna viscera by endogenous enzymatic treatment},
doi = {10.1111/ijfs.14009},
author = {Derouiche Ben Maiz, Habiba and Guadix Escobar, Emilia María and Guadix Escobar, Antonio María and Gargouri, Mohamed and Espejo Carpio, Francisco Javier},
}