Comment on the article Primary structure of gum arabic and its dynamics at oil/water interface by Isobe et al.: The primary structure of gum Arabic species is not two-dimensional

We argue against the structural interpretation given in paper doi.org/10.1016/j.carbpol.2020.116843 that primary structure of gum Arabic species is a disk-like nanoparticle. show both our and Isobe et al.’s SAXS data are comparable, which demonstrates we have investigated same type Arabic. However, also two-dimensional models, as first proposed by Renard, Sanchez coworkers, fail to fit curves adequately. rather three-dimensional multi-scale porous structure, consistently with three well defined correlation distances observed curves. briefly loosely covered schematisation oil/water interface chosen authors, unrealistic when discussing emulsion metastability.