PROBLEM TO BE SOLVED: To provide a powdered or solid composition which contains acylation sterol glycoside (ASG) derived from unpolished rice bran.SOLUTION: A method comprises operating the supercritical extraction with carbon dioxide and ethanol using rice lecithin derived from unpolished rice bran as a raw material and removing ethanol from the obtained extracted residue.COPYRIGHT: (C)2015,JPO&INPIT【課題】粉末状又は固形状の、玄米糠由来のアシル化ステロール配糖体 (ASG) 含有組成物を提供することを課題とする。【解決手段】玄米糠由来のライスレシチンを原料として二酸化炭素とエタノールを用いた超臨界抽出操作で処理し、得られた抽出残渣からエタノールを除去する。【選択図】図4