PROBLEM TO BE SOLVED: To provide a composition stably containing sulfur-containing amino acid of a plant of the genus Allium at high concentration.SOLUTION: A production method of a composition containing sulfur-containing amino acid comprises the steps of: heating a plant of the genus Allium pulverizing the heated plant of the genus Allium concentrating the pulverized plant of the genus Allium while maintaining the pulverized plant at 50°C to 75°C and pH of 3.5 to 6.0 and subjecting the concentrate to ion exchange chromatography.COPYRIGHT: (C)2015,JPO&INPIT【課題】ネギ属植物の含硫アミノ酸を安定に且つ高濃度で含有する組成物の提供。【解決手段】含硫アミノ酸含有組成物の製造方法であって、以下の工程:ネギ属植物を加熱する工程;当該加熱されたネギ属植物を粉砕する工程;当該粉砕されたネギ属植物粉砕物を、温度50℃~75℃およびpH3.5~6.0に維持しながら濃縮する工程;および当該濃縮物をイオン交換クロマトグラフィーに供する工程、を含む方法。【選択図】なし
