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Fatty acid composition of oil obtained from soybeans by extraction with supercritical carbon dioxide

Author

Listed:
  • Stela Jokić

    (Faculty of Food Technology, University of J. J. Strossmayer in Osijek, Osijek, Croatia)

  • Rezica Sudar

    (Agricultural Institute Osijek, Croatia)

  • Sandra Svilović

    (Faculty of Chemistry and Technology, University of Split, Split, Croatia)

  • Senka Vidović

    (Faculty of Technology, University of Novi Sad, Novi Sad, Serbia$2)

  • Mate Bilić

    (Faculty of Food Technology, University of J. J. Strossmayer in Osijek, Osijek, Croatia)

  • Darko Velić

    (Faculty of Food Technology, University of J. J. Strossmayer in Osijek, Osijek, Croatia)

  • Vlatka Jurković

    (Agricultural Institute Osijek, Croatia)

Abstract

Soybean oil fractions were obtained by collecting the extract at different time intervals during supercritical carbon dioxide extraction. The extraction was performed at the following temperatures: 313, 323, and 333 K, and at pressures of 300, 400, and 500 bar. The triacylglycerol composition and concentration of fatty acids in soybean oil fractions was evaluated. The fatty acid and triacylglycerol compositions of soybean oil obtained with supercritical carbon dioxide was compared with the soybean oil extracted with n-hexane. The extraction temperature and pressure, did not influence the fatty acids compositions which, however, differed in different fractions collected at different time intervals. The concentrations of myristic, palmitic, linoleic, and linolenic fatty acids of soybean oil were the highest in the first fraction and then decreased, while the concentrations of stearic and oleic acids showed the opposite trend. The solubility of all fatty acids increased with the pressure from 300 to 400 bar at constant temperature, while in the interval from 400 to 500 bar the solubility decreased with long chain fatty acids (C20-C24).

Suggested Citation

  • Stela Jokić & Rezica Sudar & Sandra Svilović & Senka Vidović & Mate Bilić & Darko Velić & Vlatka Jurković, 2013. "Fatty acid composition of oil obtained from soybeans by extraction with supercritical carbon dioxide," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 31(2), pages 116-125.
    • Handle: RePEc:caa:jnlcjf:v:31:y:2013:i:2:id:8-2012-cjfs
    DOI: 10.17221/8/2012-CJFS
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    Cited by:

    1. Jaromír DUCHÁČEK & Luděk STÁDNÍK & Martin PTÁČEK & Jan BERAN & Monika OKROUHLÁ & Jaroslav ČÍTEK & Roman STUPKA, 2014. "Effect of cow energy status on the hypercholesterolaemic fatty acid proportion in raw milk," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 32(3), pages 273-279.

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