Molecules 2009, 14(7), 2573-2581; doi:10.3390/molecules14072573
Article

Extraction of Oil from Wheat Germ by Supercritical CO2

Alessandra Piras 1 email, Antonella Rosa 2 email, Danilo Falconieri 1 email, Silvia Porcedda 1 email, Maria. A. Dessì 2 email and Bruno Marongiu 1,* email
1 Dipartimento di Scienze Chimiche, Università degli Studi di Cagliari, Cittadella Universitaria di Monserrato, SS 554, km 4.500 09042 Cagliari, Italy 2 Dipartimento di Biologia Sperimentale, Sezione di Patologia Sperimentale, Università degli Studi di Cagliari, Cittadella Universitaria di Monserrato, SS 554, km 4.500 09042 Cagliari, Italy
* Author to whom correspondence should be addressed.
Received: 26 May 2009; in revised form: 30 June 2009 / Accepted: 13 July 2009 / Published: 15 July 2009
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Abstract: 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.
Keywords: wheat germ oil; vitamin E; fatty acid; supercritical extraction; carbon dioxide

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MDPI and ACS Style

Piras, A.; Rosa, A.; Falconieri, D.; Porcedda, S.; Dessì, M.A.; Marongiu, B. Extraction of Oil from Wheat Germ by Supercritical CO2. Molecules 2009, 14, 2573-2581.

AMA Style

Piras A, Rosa A, Falconieri D, Porcedda S, Dessì MA, Marongiu B. Extraction of Oil from Wheat Germ by Supercritical CO2. Molecules. 2009; 14(7):2573-2581.

Chicago/Turabian Style

Piras, Alessandra; Rosa, Antonella; Falconieri, Danilo; Porcedda, Silvia; Dessì, Maria. A.; Marongiu, Bruno. 2009. "Extraction of Oil from Wheat Germ by Supercritical CO2." Molecules 14, no. 7: 2573-2581.

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