Consequently, we suggest that the broad non-Bragg structural feature arises from an
electron dense larger repeating structure that may be altered by
organic solvent extraction such as inter-molecular interactions or
possibly helical parameters, as have been suggested for this
polysaccharide [17]. Although this data does not allow us to
propose a model to account for that structure within the context of
polysaccharide chemical structures the feature is possibly related to
non-covalent associations of polymeric strands, something akin to
tangles or knots. Nevertheless, the finding of the capsular noncrystalline
feature is interesting and could provide an avenue for
new line of investigations to determine the dependence of the
feature on experimentally controllable factors.