The present invention provides an excellent emulsifier and emulsified food in emulsifying and emulsion stability. An emulsifier comprising a water-soluble dietary fiber that glucose a constituent sugar and emulsified food containing it. .BACKGROUND【課題】乳化性および乳化安定性に優れた乳化剤および乳化食品の提供。【解決手段】グルコースを構成糖とする水溶性食物繊維を含んでなる乳化剤およびそれを含有する乳化食品。【選択図】なし