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Extraction of Oil from Wheat Germ by Supercritical CO2
oleh: Bruno Marongiu, Maria. A. Dessì, Silvia Porcedda, Danilo Falconieri, Alessandra Piras, Antonella Rosa
Format: | Article |
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Diterbitkan: | MDPI AG 2009-07-01 |
Deskripsi
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.