PROBLEM TO BE SOLVED: To provide a Geranium thunbergii composition including geraniin that is an active ingredient in Geranium thunbergii by extracting the geraniin without decomposition, and to create a functional food, food material, food additive, health food, medical product, quasi drug, cosmetic or the like using the functionality and biological activity of the Geranium thunbergii composition.SOLUTION: The Geranium thunbergii composition including a high content of geraniin is produced by extracting geraniin from Geranium thunbergii with hot water to which an acid such as citric acid is added or the like, and performing purification thereon for removing impurities by use of at least one or more methods of supercritical extraction, membrane treatment, dialytic membrane treatment, recrystallization, centrifugal separation, synthetic adsorbent treatment, ion-exchange resin treatment and the like. Further, the Geranium thunbergii composition excellnet in antioxidant effect, melanin generation inhibiting effect, specific enzyme inhibiting effect, SOD activity-like effect and the like is widely used for a functional food, food material, food additive, health food, medical product, quasi drug, cosmetic or the like.COPYRIGHT: (C)2012,JPO&INPIT【課題】ゲンノショウコ中の有効成分であるゲラニインを分解させないで抽出し、ゲラニインを主成分としたゲンノショウコ組成物の提供およびゲンノショウコ組成物の機能性、生理活性を活用した機能性食品、食品素材、食品添加物、健康食品、医薬品、医薬部外品、化粧品等の創生。【解決手段】ゲンノショウコからクエン酸などの酸を添加した温水等でゲラニインを抽出し、更に不純物を除去するために超臨界抽出方法、膜処理方法、透析膜処理方法、再結晶法、遠心分離法、合成吸着剤処理法、イオン交換樹脂処理法等の少なくとも1種類以上の方法を用いて精製し、ゲラニインを高含量に含むゲンノショウコ組成物を製造する。更に、当該ゲンノショウコ組成物が優れた抗酸化効果、メラニン生成阻害効果、特定酵素の阻害効果、SOD活性様効果等を有していることを見出し、機能性食品、食品素材、食品添加物、健康食品、医薬品、医薬部外品、化粧品等に広く利用する。【選択図】図7
