A comparative study of lupeol extraction from a by-product of lupin processing by hydrophobic natural deep eutectic solvents and their precursor components

Banares Celia, Baréa Bruno, Chabni Assamae, Torres Carlos F., Durand Erwann, Villeneuve Pierre. 2023. A comparative study of lupeol extraction from a by-product of lupin processing by hydrophobic natural deep eutectic solvents and their precursor components. European Journal of Lipid Science and Technology, 15 (12):2300021, 12 p.

Résumé : A series of hydrophobic natural deep eutectic solvents (HNADESs) have been employed to extract lupeol from lupin seed coat at 30 and 70°C. The extraction yields have been compared with those obtained with conventional organic solvents. In general, lupeol extraction yields (LEYs) obtained when using HNADES are somewhat smaller than those obtained if organic solvents are used. However, the nature of the HNADES mixtures as green solvents represents a superior performance in terms of sustainability of the extraction process. Additionally, an investigation has been carried out in order to compare the LEYs obtained when using the HNADES mixtures with those obtained if the isolated precursor compounds are employed at a temperature (70°C) where both HNADES and the corresponding precursor compounds are liquids. Surprisingly, LEYs for lupeol at 70°C were found to be, in some cases, slightly higher if the precursor compounds are used in comparison with the proper HNADES mixtures. It seems that the unique properties of the HNADES mixtures are not enough to perform better as extractants in comparison with the isolated precursor compounds at moderate temperatures, at least for the case of lupeol from lupin seed coat. Some hints are presented to explain these results.

Mots-clés Agrovoc : extraction par solvant, solvant, mélange de semences, sous-produit

Mots-clés libres : By-products, Hydrophobic natural deep eutectic mixtures, Lupeol, Lupin seed coat, Precursor compounds

Classification Agris : Q02 - Traitement et conservation des produits alimentaires
Q04 - Composition des produits alimentaires

Champ stratégique Cirad : CTS 3 (2019-) - Systèmes alimentaires

Agences de financement hors UE : Comunidad de Madrid, Fundación Ramón Areces, Ministerio de Ciencia e Innovación

Auteurs et affiliations

• Banares Celia, CIRAD-PERSYST-UMR Qualisud (FRA)
• Baréa Bruno, CIRAD-PERSYST-UMR Qualisud (FRA)
• Chabni Assamae, Institute of Food Science Research (ESP)
• Torres Carlos F., Institute of Food Science Research (ESP)
• Durand Erwann, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0002-0306-8081 - auteur correspondant
• Villeneuve Pierre, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0003-1685-1494 - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/606441/)

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