Ciência Rural (Oct 2020)

Instrumental color and oxidative stability of light and dark muscles of Nile tilapia

  • Fernanda Medeiros Viana,
  • Anna Carolina Vilhena da Cruz Silva Canto,
  • Maria Lúcia Guerra Monteiro,
  • Ana Paula Amaral de Alcântara Salim Pereira,
  • Bruna Leal Rodrigues,
  • Carlos Adam Conte-Junior

DOI
https://doi.org/10.1590/0103-8478cr20200287
Journal volume & issue
Vol. 50, no. 11

Abstract

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ABSTRACT: The aim of the present study was to compare the color and oxidative stability of light (LM) and dark (DM) muscles of Nile tilapia (Oreochromis niloticus) stored at 4 °C for eight days. Five different trials of LM and DM samples were analyzed for instrumental color attributes (lightness, redness and yellowness), including the surface color stability through ratio of reflectance at 630/580 nm (R630/580), myoglobin concentration, total lipid content, fatty acid profile, metmyoglobin reducing activity (MRA), pH, lipid oxidation and protein oxidation. Results of the present study indicated that DM of Nile tilapia (Oreochromis niloticus) present lower oxidative and color stability during refrigerated storage than LM.

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