PROBLEM TO BE SOLVED: To provide an α-glycosidase enzyme inhibitor which has high safety, sugar digestion and absorption inhibition, postprandial blood glucose elevation inhibition, and a hyperglycemia improving effect, and to provide a food composition containing the inhibitor, and to provide a pharmaceutical composition.SOLUTION: The invention provides an α-glycosidase enzyme inhibitor comprising an enzyme-treated material of xyloglucan. The xyloglucan is Tamarindus indica seed extract (tamarind seed gum). The enzyme is an α-glycosidase enzyme inhibitor which is a sugar degrading enzyme, such as cellulase, xylase, glucanase, and pectinase.COPYRIGHT: (C)2015,JPO&INPIT【課題】安全性が高く、糖質の消化吸収抑制、食後の血糖上昇抑制、過血糖改善効果を有するα-グリコシダーゼ酵素阻害剤、及び該阻害剤を含有する食品組成物並びに医薬組成物の提供。【解決手段】キシログルカンの酵素処理物を含む、α-グリコシダーゼ酵素阻害剤。該キシログルカンは、タマリンドの種子の抽出物(タマリンドシードガム)であり、該酵素としては、セルラーゼ、キシラーゼ、グルカナーゼ、ペクチナーゼ等の糖質分解酵素であるα-グリコシダーゼ酵素阻害剤。【選択図】なし
