Molecules (Jul 2009)

Extraction of Oil from Wheat Germ by Supercritical CO2

  • Bruno Marongiu,
  • Maria. A. Dessì,
  • Silvia Porcedda,
  • Danilo Falconieri,
  • Alessandra Piras,
  • Antonella Rosa

DOI
https://doi.org/10.3390/molecules14072573
Journal volume & issue
Vol. 14, no. 7
pp. 2573 – 2581

Abstract

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This study examined the supercritical fluid extraction of wheat germ oil. The effects of pressure (200-300 bar at 40 °C) and extraction time on the oil quality/quantity were studied. A comparison was also made between the relative qualities of material obtained by SFE and by organic solvent extraction. The extracts were analyzed for α-tocopherol and polyunsaturated fatty acid content. The maximum wheat germ oil yield at about 9% was obtained with supercritical carbon dioxide extraction at 300 bar, while fatty acid and α-tocopherol composition of the extracts was not remarkable affected by either pressure or the extraction method.

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