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Comptes Rendus Chimie
Volume 17, n° 3
pages 284-292 (mars 2014)
Doi : 10.1016/j.crci.2013.11.014
Received : 10 July 2013 ;  accepted : 28 November 2013
Grape seed oil extraction: Interest of supercritical fluid extraction and gas-assisted mechanical extraction for enhancing polyphenol co-extraction in oil

Natacha Rombaut a, b, Raphaëlle Savoire a, , Brigitte Thomasset b, Typhanie Bélliard a, Jérémie Castello a, Élisabeth Van Hecke a, Jean-Louis Lanoisellé c
a UTC/ESCOM, EA4297 TIMR, rue Personne-de-Roberval, BP 20529, 60205 Compiègne, France 
b UTC, CNRS–FRE 3580 GEC, rue Personne-de-Roberval, BP 20529, 60205 Compiègne, France 
c Université Bretagne-Sud, EA 4250, LIMATB, 56300 Pontivy, France 

Corresponding author.

The aim of this study is to compare three oil extraction methods and to evaluate their efficiency for producing an oil rich in polyphenols. The three extraction methods are screw pressing, extraction by supercritical CO2 percolation and the combination of these two processes (Gas-Assisted Mechanical Expression: GAME). Screw pressing is the most efficient process for producing grape seed oil with a high yield, but supercritical CO2 process permits an increase of polyphenol co-extraction with oil. The GAME process allows extraction of more polyphenols than screw pressing and constitutes an interesting process considering oil yield.

The full text of this article is available in PDF format.

L’objectif de cette étude est de comparer trois procédés d’extraction et d’évaluer leur efficacité pour produire une huile riche en polyphénols. Les trois procédés étudiés sont le pressage à vis, l’extraction par percolation au CO2  supercritique et la combinaison du pressage et de cette extraction : le pressage mécanique assisté par fluide supercritique (PAFSC). Le pressage à vis est le procédé le plus efficace en termes de rendement en huile, alors que l’extraction par CO2  supercritique permet une augmentation de la co-extraction de polyphénols dans l’huile. Le PAFSC conduit à une augmentation de la co-extraction des polyphénols en comparaison du pressage à vis, et constitue ainsi un procédé alternatif intéressant pour la production d’huile.

The full text of this article is available in PDF format.

Keywords : Lipids, Natural products, Green chemistry, Supercritical fluids, Gas-Assisted Mechanical Expression (GAME), Grape seed

Mots clés : Lipides, Produits naturels, Chimie verte, Fluides supercritiques, Pressage mécanique assisté par fluides supercritiques, Pépins de raisin

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