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Micellization in vegetable oils: A structural characterisation

Fadel, Ophélie; Girard, Luc; Gomes Rodrigues, Donatien; Bauduin, Pierre; Le Goff, Xavier; Rossignol-Castera, Anne; L’Hermitte, Annabelle; Diat, Olivier

By 12 March 2019 No Comments

Colloids and Surfaces B: Biointerfaces, 2017, vol 154pp. 279-286

DOI:10.1016/j.colsurfb.2017.03.025

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.

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