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Type: Artigo
Title: Production of hydrolysate from processed nile tilapia (oreochromis niloticus) residues and assessment of its antioxidant activity
Author: Bernardi, Daniela Miotto
Paris, Leandro Daniel de
Dieterich, Fabiana
Silva, Fernanda Guimarães Dummond e
Boscolo, Wilson Rogério
Sary, Cezar
Signor, Altevir
Bertol, Teresinha Marisa
Sgarbieri, Valdemiro Carlos
Abstract: The objective of this work was to produce protein hydrolysates from by-products of the Nile tilapia fileting process, and to assess the effects of different hydrolysis times on the antioxidant activity of the hydrolysed animal-based protein, in free form and incorporated into a food matrix. Gutted tilapia heads and carcasses were hydrolysed by Alcalase® for different hydrolysis times producing six hydrolysates. The protein content, degree of hydrolysis, reverse-phase high-performance liquid chromatography, and antioxidant activity by the ORAC, FRAP and TEAC methods were analysed. Three mini-hamburger formulations were produced and the lipidic oxidation of mini-hamburger was determined by TBARS. The protein contained in the residue was completely recovered in the process. The hydrolysates varied in their degree of hydrolysis, but presented similar levels of antioxidant activity. In the mini-hamburgers the hydrolysate was capable of delaying oxidation after 7 days of storage. Hydrolysis of tilapia processing by-products produced peptides may be used in the formulation of functional foods
Subject: Peixe
Country: Brasil
Editor: Sociedade Brasileira de Ciência e Tecnologia de Alimentos
Rights: Aberto
Identifier DOI: 10.1590/1678-457x.15216
Date Issue: 2016
Appears in Collections:FEA - Artigos e Outros Documentos

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