Polysaccharides of soybean seeds

Abstract

A polysaccharide fraction extracted from soybean seeds with boiling water was examined by several fractionation methods on ultracentrifugal criteria. Four components were found by a column chromatography using TEAE-cellulose or by a paper electrophoresis. Acetone-precipitation, fractionation by conversion into acetyl derivative, and copper-complex-precipitation were unsatisfactory to fractionate into the components. The major component (70%) isolated was an arabinogalactan containing residues of arabinose and galactose in the approximate proportion of 1 : 2 and having molecular weight of 3.3×105. © 1965 Taylor and Francis Group LLC.