市販하는 天然植物에서 얻은 熱水 및 Methanol 抽出物의 抗酸化 및 金屬錯體形成能 : (1) The Effects of Leonuri Herba Extracts (1) 益母草 抽出物의 효과 = The Antioxidativity and Metal-Chelating Ability of The Extracts of Hot Water and Methanol Obtained from Natural Plants

다국어 초록 (Multilingual Abstract)

This study was carried out to elucidate the antioxidative effects of hot water and methanol extracts obtained from Leonuri Herba and their metal-chelating ability by the sephadex G-25 gel chromatography.
The results are as follows :
1. Two antioxidative compounds were obtained from hot water extract and one from methanol extracts, which showed the simple composition of antioxidatants in the extracts of Leonuri Herba.
2. HPLC chromatogram showed two or one peak in the extracts of hot water and methanol, as shown in previous paper.
3. Both extracts appeared to have some antioxidative ability against the linoleic acid peroxidation, which hot water extract was a little bigger in antioxidative activity than methanol extract.
4. Both extracts did not form the metal-chelating agents with Fe, Cu and Zn, which it mean the extracts appear not to be the metal-chelating ability. But, hot water extract showed to have radical-quenching effect.