Influence of enzymes on the oil extraction processes in aqueous media

LIBio, Nancy Université INPL, 2, avenue de la Fôret-de-Haye, BP 172, 54505 Vandœuvre-lès-Nancy, France

^* lionel.muniglia@ensaia.inpl-nancy.fr

Abstract

The methods of oil aqueous extraction process (AEP) assisted by enzymes are, over the last 50 years, an alternative designed to replace traditional methods of extraction using organic solvents. To extract the oil using an AEP, the use of specific enzymes, able to hydrolyze some or all components of seeds, can significantly increase the yields of extraction. Hydrolyzing the different constituents of cell walls (cellulose, hemicellulose, pectins, proteins, etc.), enzymes are able to enhance the liberation of the oil. A number of physico-chemical parameters must also be considered for the better expression of the enzymatic mixture, while maintaining the quality of oils and meals. This article presents the various factors influencing the release of oil in aqueous media and the main results obtained by this process on various substrates.