PROBLEM TO BE SOLVED: To provide a natural active oxygen-eliminating agent having excellent active oxygen-eliminating activities based on a superoxide-eliminating activities, hydrogen peroxide-eliminating activities and free radical-eliminating activities, having high safety and prepared from an easily available raw material.SOLUTION: This natural active oxygen-eliminating agent containing a superoxide-eliminating material, a hydrogen peroxide-eliminating material or a free radical-eliminating material as an active ingredient is extracted from a flower part, a seed, a leaf part, a stem part or an aboveground part including them of a plant belonging to the genus Brassica of Brassicaceae, especially Brassica rope. The cosmetic and the food and drink contain the formulated active oxygen-eliminating agent.COPYRIGHT: (C)2003,JPO【課題】 スーパーオキサイド消去作用、過酸化水素消去作用及びラジカル消去作用に基づく優れた活性酸素消去作用を有し、安全性が高く、原料入手容易な天然系活性酸素消去剤の提供。【解決手段】 アブラナ科ブラシカ(Brassica)属植物、特に菜の花(Brassica ropa)の花部、種子、葉部、茎部、又はこれらを含む地上部から抽出される、スーパーオキサイド消去物質、過酸化水素消去物質、又はラジカル消去物質を有効成分として含む天然系活性酸素除去剤、及び該活性酸素除去剤を配合した化粧料並びに飲食物。
