Chromatographic fractionation and molecular mass characterization of Cercidium praecox (Brea) gum

BACKGROUND Brea gum ( BG ) is an exudate from the Cercidium praecox tree that grows in semi‐arid regions of Argentina. Some previous studies on BG have shown physicochemical characteristics and functional features similar to those of gum arabic. However, there is a need to elucidate the molecular structure of BG to understand the functionality. In this sense, BG was fractionated using hydrophobic interaction chromatography and the obtained...