Extraction of Oil from Wheat Germ by Supercritical CO2

Molecules

Alessandra Piras¹  Antonella Rosa²  Danilo Falconieri¹  Silvia Porcedda¹  Maria. A. Dessì² 

[1] Dipartimento di Scienze Chimiche, Università degli Studi di Cagliari, Cittadella Universitaria di Monserrato, SS 554, km 4.500 09042 Cagliari, Italy; E-mails:;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; E-mails:

关键词: wheat germ oil;    vitamin E;    fatty acid;    supercritical extraction;    carbon dioxide;   

DOI  :  10.3390/molecules14072573

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.