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
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.