PROBLEM TO BE SOLVED: To provide an extract comprising a concentrated component having the action of taking sugar from a blood vessel (blood) contained in persimmon leaves into skeletal muscle, and a method for producing the extract.SOLUTION: A persimmon leaf extract contains a polyphenol that is present in an extract from persimmon leaves with water or a water-ethanol mixture and adsorbs to a styrene-divinyl benzene copolymer, at a rate of 20 mass% or more to the total amount of the composition, with a moisture content being 10 mass% or less of the total amount of the composition.SELECTED DRAWING: NoneCOPYRIGHT: (C)2020,JPO&INPIT【課題】柿の葉に含有される血管（血液）から骨格筋へ糖を取り込む作用を有する成分を濃縮したエキス、及びエキスの製造方法を提供すること。【解決手段】柿葉の水または水－エタノール混合液の抽出物中に存在する、スチレン－ジビニルベンゼン共重合体に吸着するポリフェノール類を、組成物全量に対して２０質量％以上含有し、かつ水分含有量が組成物全量に対して１０質量％以下であることを特徴とする柿葉抽出物。【選択図】なし
