Artigo
Recovery of anchovy (Engraulis anchoita) and whitemouth croaker (Micropogonias furnieri) proteins by alkaline solubilisation process
Registro en:
Acta Alimentaria. Budapest: Akademiai Kiado Rt, v. 44, n. 2, p. 221-228, 2015.
0139-3006
10.1556/AAlim.2014.0005
WOS:000354437000008
Autor
Freitas, Irene Rodrigues [UNESP]
Cortez-Vega, William Renzo
Prentice, Carlos
Resumen
The aim of this study was to evaluate the physical, chemical, and functional properties of recovered proteins of anchovy (Engraulis anchoita) and whitemouth croaker (Micropogonias furnieri) through the process of alkaline solubilisation and isoelectric precipitation, using different solubilisation (NaOH and KOH) and precipitation (HCl and H3PO4) reagents. The tests showed high protein level, and the lowest lipid reduction (94.5%) was found in the recovered protein of anchovy, the lowest yield of the process was 76.1%. The highest whiteness (78.8 and 74.2) was found in whitemouth croaker proteins. The solubilisation of the recovered protein was studied in the pH range (3, 5, 7, 9, and 11). The maximum solubility was at pHs 3 and 11 and minimum solubility was at pH 5 in the species under study. Universidade Federal do Rio Grande, Laboratório de Tecnologia de Alimentos, Escola de Química e Alimentos Universidade Federal da Grande Dourados, Laboratório de Bioengenharia, Faculdade de Engenharia Universidade Estadual Paulista, Departamento de Engenharia e Tecnologia de Alimentos, Instituto de Biociências, Letras e Ciências Exatas de São José do Rio Preto