Comparison of natural polyphenol antioxidants from extra virgin olive oil with synthetic antioxidants in tuna lipids during thermal oxidation

Isabel Medina, M. Teresa Satué-Gracia, J. Bruce German, Edwin N. Frankel

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

Polyphenols extracted from extra virgin olive oil (EVOO) were tested for their ability to inhibit lipid oxidation of canned tuna. Hydroperoxide formation during oxidation was monitored by measurement of peroxide value and decomposition of hydroperoxides by static headspace gas chromatographic analysis of volatiles. In tuna oxidized at 40 and 100 °C, 400 ppm of the EVOO polyphenols was an effective antioxidant as compared with 100 ppm of a 1:1 mixture of the synthetic antioxidants butylated hydroxytoluene and butylareal hydroxyanisole. However, at concentrations <100 ppm, the EVOO phenolic compounds promoted hydroperoxide formation and decomposition. The EVOO polyphenols were effective antioxidants when added to heated tuna muscle in the presence of either brine or refined olive oil. The oxidation rate in tuna muscle packed in brine was higher than that of tuna packed in refined olive oil. The EVOO polyphenols had higher antioxidant activity in the brine samples than in the refined olive oil. The higher antioxidant activity of EVOO polyphenols in tuna packed in brine may be explained by their greater affinity toward the more polar interface between water and the fish oil system.

Original languageEnglish (US)
Pages (from-to)4873-4879
Number of pages7
JournalJournal of Agricultural and Food Chemistry
Volume47
Issue number12
DOIs
StatePublished - Dec 1999

Fingerprint

Tuna
extra-virgin olive oil
tuna
Polyphenols
polyphenols
Antioxidants
Hot Temperature
oxidation
Lipids
heat
antioxidants
Oxidation
hydroperoxides
lipids
olive oil
Hydrogen Peroxide
antioxidant activity
canned fish
muscles
butylated hydroxytoluene

Keywords

  • Antioxidants
  • Packing media (brine, refined olive oil)
  • Polyphenols
  • Thermal oxidation
  • Tuna fish lipids

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Food Science
  • Chemistry (miscellaneous)

Cite this

Comparison of natural polyphenol antioxidants from extra virgin olive oil with synthetic antioxidants in tuna lipids during thermal oxidation. / Medina, Isabel; Satué-Gracia, M. Teresa; German, J. Bruce; Frankel, Edwin N.

In: Journal of Agricultural and Food Chemistry, Vol. 47, No. 12, 12.1999, p. 4873-4879.

Research output: Contribution to journalArticle

Medina, Isabel ; Satué-Gracia, M. Teresa ; German, J. Bruce ; Frankel, Edwin N. / Comparison of natural polyphenol antioxidants from extra virgin olive oil with synthetic antioxidants in tuna lipids during thermal oxidation. In: Journal of Agricultural and Food Chemistry. 1999 ; Vol. 47, No. 12. pp. 4873-4879.
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