Effectiveness of added natural antioxidants in sunflower oil

Authors

  • Amalia A. Carelli PLAPIQUI (UNS-CONICET)
  • Indira C. Franco PLAPIQUI (UNS-CONICET)
  • Guillermo H. Crapiste PLAPIQUI (UNS-CONICET)

DOI:

https://doi.org/10.3989/gya.2005.v56.i4.97

Keywords:

Autooxidation, Natural antioxidants, Polar compounds, Sunflower oil

Abstract


The antioxidant activity of α- and δ-tocopherol, citric acid, ascorbic acid and ascorbyl palmitate was investigated in sunflower oil containing naturally occurring tocopherol. The effectiveness of natural antioxidants in sunflower oil was monitored by the accelerated oxidative stability test Rancimat and oxidation development during storage under different conditions. Samples in storage experiments were periodically removed and analyzed for peroxide value, p-anisidine value, total content and distribution of polar compounds, and residual naturally occurring tocopherol. The effectiveness of each antioxidant was strongly dependent on temperature and the testing method. While ascorbic acid appears to be the most effective antioxidant according to the Rancimat oxidative stability index, δ-tocopherol shows improved performance when considering storage experiments.

Downloads

Download data is not yet available.

Downloads

Published

2005-12-31

How to Cite

1.
Carelli AA, Franco IC, Crapiste GH. Effectiveness of added natural antioxidants in sunflower oil. grasasaceites [Internet]. 2005Dec.31 [cited 2021Dec.5];56(4):303-10. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/97

Issue

Section

Research