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Title Emulsifying properties of sugar-based surfactants prepared by chemoenzymatic synthesis
ID_Doc 19491
Authors Sangiorgio, S; Pargoletti, E; Rabuffetti, M; Robescu, MS; Semproli, R; Ubiali, D; Cappelletti, G; Speranza, G
Title Emulsifying properties of sugar-based surfactants prepared by chemoenzymatic synthesis
Year 2022
Published
Abstract Sugar Fatty Acid Esters (SFAEs) are a class of non-ionic surfactants that can be synthesized from inexpensive natural resources. Depending on carbon chain length and nature of the sugar head group, SFAEs cover a wide range of hydrophilic-lipophilic balance (HLB) values, which result in tunable tenside properties and in turn relevant for a wide variety of industrial applications. Three sugar-based surfactants (6-O-lauroyl-, 6-O-palmitoyland 6-O-stearoyl-1-O-butyl glucopyranosides) have been prepared by a lipase-catalyzed esterification of isomeric mixture of n-butyl glucosides. Specifically, their interfacial features together with W/O emulsifying properties and stability over time have been finely evaluated (interfacial tension (IFT) values, W/O emulsion turbidity and water droplet size distribution), resulting 6-O-palmitoyl- and 6-O-stearoyl-1-O-butyl glucopyranosides as the most efficient ones.
PDF https://doi.org/10.1016/j.colcom.2022.100630

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