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Characterization of two Acacia gums and their fractions using a langmuir film balance
M L Fauconnier1, C Blecker, J Groyne
1Unité de Chimie Générale et Organique, Unité de Technologie des Industries Agro-alimentaires, and Unité de Chimie Biologique Industrielle, Faculté Universitaire des Sciences Agronomiques de Gembloux, Belgium.
Abstract:
The mechanical properties of monolayers from two Acacia gums [Acacia senegal (L.) Willd. and Acacia seyal Del.] and their three fractions isolated by hydrophobic interaction chromatography were studied with a Langmuir film balance to obtain a more complete understanding of their action mode. The analysis of compression isotherms revealed that A. senegal gums globally exhibit better interfacial properties than A. seyal ones. The behavior of the whole gums appeared to be strongly influenced by their arabinogalactan-protein complex.