To provide a water-soluble soybean polysaccharide having improved solubility as compared with conventional water-soluble soybean polysaccharide, suppression of foaming at the time of dissolution and improvement of defoaming property of generated foam. SOLUTION: A water-soluble soybean polysaccharide having a median diameter of powder of 60 m or more and a ratio of a fraction having a molecular weight of 3 to 70,000 in a molecular weight distribution by gel filtration HPLC measurement of less than 18% is used as a food such as an emulsifier Solubility is improved more than conventional water-soluble soybean polysaccharide without using additives, further suppresses foaming property upon dissolution and improves foaming property of generated foam. Selection drawing None【課題】従来の水溶性大豆多糖類よりも溶解性が向上し、さらに溶解時の起泡抑制及び発生した泡の消泡性が向上する水溶性大豆多糖類を提供することを目的とした。 【解決手段】粉体のメジアン径が60μm以上、且つゲル濾過HPLC測定による分子量分布において分子量が3~7万の画分の比率が18%未満である水溶性大豆多糖類が、乳化剤等の食品添加物を使用せずに、従来の水溶性大豆多糖類より溶解性が向上し、さらに溶解時の起泡性を抑制し、発生した泡の消泡性が向上する。【選択図】 なし
