Atypical Reaction Media and Organized Systems for the Synthesis of Low-Substitution Sugar Esters

Sidrine Kerthy Koumba Ibinga (1, 2) , Jean-François Fabre (1) , Raphaël Bikanga (2) , Zéphirin Mouloungui (1)

1 CAI - Chimie Agro-Industrielle
2 LASNSOM - Laboratoire de Substances Naturelles et de Synthèses Organométalliques

Sugar esters are non-ionic surfactants with amphiphilic properties of interest for the formulation of various products in the fields of detergents, foods, medicines, pharmaceuticals, agriculture, and cosmetics. The properties of sugar esters depend on their degree of substitution (we consider degrees of substitution between 1 and 3 here) which guides their use. Sugar esters are biodegradable and non-toxic, and the demand for these compounds is high and continuing to increase. Indeed, interest in these compounds stems from the natural origin of the raw materials, the synthetic processes involved and the performance of the final product. The choice of reaction medium is crucial, to facilitate contact between reactants and prevent hydrolysis of the products. In this review, we provide an overview of the processes and synthesis routes for sugar ester production, ionic liquids and deep eutectic solvent as non-usual media or with organized systems.

Mots clés: Sugars; Sugar fatty acid esters; Organized media; Degree of substitution; Ionic liquids; Deep eutectic solvent; Emulsion

Domaines: Sciences agricoles

Sidrine Kerthy Koumba Ibinga, Jean-François Fabre, Raphaël Bikanga, Zéphirin Mouloungui. Atypical Reaction Media and Organized Systems for the Synthesis of Low-Substitution Sugar Esters. Frontiers in Chemistry, 2019, 7, pp.0. ⟨10.3389/fchem.2019.00587⟩. ⟨hal-02349465⟩