Temperature dependence of HNE formation in vegetable oils and butter oil

In Hwa Han, A S Csallany

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The temperature dependence of the formation of toxic 4-hydroxy-2-trans- nonenal (HNE) was investigated in high and low linoleic acid (LA) containing oils such as corn, soybean and butter oils. These oils contain about 60, 54 and 3-4% of LA for corn, soybean and butter oils, respectively. The oils were heated for 0, 0.5, 1, 2, and 3 h at 190 °C and for 0, 5, 15 and 30 min at 218 °C. HNE concentrations in the oils were analyzed by high performance liquid chromatography (HPLC). The maximum HNE concentrations in heated (190 °C) corn, soybean and butter oils were 5.46, 3.73 and 1.85 μg HNE/g oil, respectively. The concentration of HNE at 218 °C increased continuously for all the three oils, although they were heated for much shorter periods compared to the lower temperature of heating (190 °C). HNE concentration at 30 min reached the maximum of 15.48, 10.72 and 6.71 μg HNE/g oil for corn, soybean and butter oils, respectively. HNE concentration at higher temperature (218 °C) was 4.9, 3.7, and 8.7 times higher than at the lower temperature (190 °C) and 30 min of heating for corn, soybean and butter oils, respectively. It was found that HNE formation was temperature dependant in the tested oils.

Original languageEnglish (US)
Pages (from-to)777-782
Number of pages6
JournalJAOCS, Journal of the American Oil Chemists' Society
Volume85
Issue number8
DOIs
StatePublished - Aug 2008

Bibliographical note

Funding Information:
Acknowledgments This research has been supported partly by the Minnesota Agricultural Experiment Station and the Midwes Dairy Association.

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

Keywords

  • 4-Hydroxy-2-trans-nonenal
  • Butter oil
  • Corn oil
  • HNE
  • Heating temperature
  • Linoleic acid
  • N6 fatty acid
  • Soybean oil

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