Oxidative quality and color variation during refrigeration (4 °C) of rainbow trout fillets marinated with different natural antioxidants from oregano, quillaia and rosemary

  • María Angélica Fellenberg Pontificia Universidad Católica de Chile
  • Félix Carlos Pontificia Universidad Católica de Chile
  • Iván Peña Pontificia Universidad Católica de Chile
  • Rodrigo A. Ibáñez Pontificia Universidad Católica de Chile
  • Einar Vargas-Bello-Pérez University of Copenhagen

Abstract

The study aimed at determining the antioxidant effect of natural extracts on the oxidative quality and color variation of rainbow trout fillets during storage at 4 °C. The fillets were marinated and samples from the belly flap area and Norwegian quality cuts were used for lipid oxidation determination while the dorsal region was used for color measurements. The fillets were marinated with the different treatments: 470 mg l-1 of oregano extract, 6.84 ml l-1 of quillaia extract, 7.2 ml l-1 of rosemary extract and 2 ml l-1 of a synthetic antioxidant. Maximum TBARS (Thiobarbituric acid reactive substances) values of belly flap and Norwegian quality cuts occurred at five and six days of storage, respectively. The susceptibility of treatments to lipid oxidation in decreasing order was: control>quillaia>oregano>rosemary>synthetic antioxidant. An increase in lightness (L*) and redness (a*) were observed for rosemary and quillaia extracts when compared to control samples. Marinates with natural antioxidants may be an alternative for extending shelf-life of trout fillets at least during the first six days of storage at 4 °C.

Downloads

Download data is not yet available.
Section
Articles
Published
Feb 27, 2020
How to Cite
Fellenberg, M. A., Carlos, F., Peña, I., Ibáñez , R. A., & Vargas-Bello-Pérez, E. (2020). Oxidative quality and color variation during refrigeration (4 °C) of rainbow trout fillets marinated with different natural antioxidants from oregano, quillaia and rosemary. Agricultural and Food Science, 29(1), 43–54. https://doi.org/10.23986/afsci.87078