Elektrodialyse und Elektrophorese in der Stärkeforschung

Electrophoresis of some neutral polysaccharides

“…The movement of polysaccharide material in an electrical field has already been used in certain analytical and preparative methods, but this has usually been confined to separations in which one of the polysaccharide components at least carries a charge due to esterification or other combination with a polar group. Samec, Nucic & Pirkmaier (1941) obtained fractions from potato starch by such a method owing to the phosphate ester groups on the amylopectin component, and the method has been applied to the analysis of various blood group polysaccharides (Krejci, Sweeny' & Zittle, 1949) and 'acid polysaccharides' of gastric mucosa (Smith & Gallop, 1953). The influence of borate on certain polysaccharides has been investigated with relation to solubility, viscosity and gel formation (Deuel, Neukom & Weber, 1948;Deuel & Neukom, 1949), but no systematic study of the movement of such polysaccharide-borate compounds in an electrophoresis apparatus has been made.…”