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. 2017 Jun 1:154:279-286.
doi: 10.1016/j.colsurfb.2017.03.025. Epub 2017 Mar 21.

Micellization in vegetable oils: A structural characterisation

Ophélie Fadel  1 , Luc Girard  1 , Donatien Gomes Rodrigues  1 , Pierre Bauduin  1 , Xavier Le Goff  1 , Anne Rossignol-Castera  2 , Annabelle L'Hermitte  2 , Olivier Diat  3
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Micellization in vegetable oils: A structural characterisation

Ophélie Fadel et al. Colloids Surf B Biointerfaces. .

Abstract

The solubilisation of polar and polyphenol antioxidant in vegetable oils was studied. It was shown that the use of a polyglyceryl-3-diisostearate (PG3DS), a bio-sourced emulsifier well known in cosmetics, increases the yield of solubilisation thanks to some aggregation properties analysed using x-ray scattering technique. We show indeed that PG3DS forms reverse aggregates with a critical concentration that depends on the oil polarity. PG3DS reverse aggregates are elongated with a polar core and cannot be really swollen by addition of water. This supramolecular organisation allows however an efficient solubilisation of polar antioxidants in vegetable oils.

Keywords: Polyphenol antioxidant; Reverse micelle; SAXS; Vegetable oil.

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