PROBLEM TO BE SOLVED: To provide an extraction and separation method of eurycomanone from a root of TongKat Ali, which does not have a complicated extraction step, has a high yield and is suitable for commercial production.SOLUTION: An extraction and separation method of eurycomanone from a root of TongKat Ali, which passes through steps of pulverizing roots of TongKat Ali, stirring and extracting with ethanol, filtering, after concentration, removing impurities, fractionating molecular weight, precipitating after pH adjustment, dissolving, washing, removing impurities, and crystallizing.SELECTED DRAWING: None【課題】抽出ステップが複雑でなく、収率が高く、商業生産に適してるトンカットアリの根からのユーリコマノンの抽出分離方法。【解決手段】トンカットアリの根を粉砕し、エタノールで撹拌抽出、ろ過、濃縮後、不純物を除去し、分子量分画し、ｐＨ調整後沈殿化、溶解、洗浄、不純物除去、結晶化などのステップを経る、トンカットアリの根からのユーリコマノンの抽出分離方法。【選択図】なし
