Grasas y Aceites, Vol 48, No 2 (1997)

Characterization of wheat germ oil extracted by liquid and supercritical carbon dioxide.


https://doi.org/10.3989/gya.1997.v48.i2.773

A. Molero Gómez
Departamento de Ingeniería Química, Tecnología de Alimentos y Tecnologías del Medio Ambiente. Universidad de Cádiz., Spain

M. D. Gordillo Romero
Departamento de Ingeniería Química, Tecnología de Alimentos y Tecnologías del Medio Ambiente. Universidad de Cádiz., Spain

E. Martínez de la Ossa
Departamento de Ingeniería Química, Tecnología de Alimentos y Tecnologías del Medio Ambiente. Universidad de Cádiz., Spain

Abstract


In this work the quality of wheat germ oil obtained by extraction with liquid and supercritical carbon dioxide was studied. At the optimum operating conditions, the yield of supercritical extraction is similar to the conventional extraction by organic solvent, but the quality of the wheat germ oil extracted by supercritical carbon dioxide is higher. Furthermore, supercritical extraction could be more economical than organic extraction because the solvent removal by distillation is not necessary and several steps of the following oil refining process can be simplified.

Keywords


Quality; Supercritical extraction; Unsaturated fatty acid; Wheat germ oil.

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