A NOVEL ANTIOXIDATIVE COMPOUND AND ITS PURIFICATION TECHNIQUES FROM SPOROPHYLL OF UNDARIA PINNATIFIDA

摘要

Provided are an antioxidative compound, which has high antioxidative activity, high heat stability, and excellent ferrous chelating effect, and thus is useful as a natural antioxidant, and a preparation thereof. The antioxidative compound represented by the following chemical formula 1 is prepared by the steps of: adding a solvent to mashed Sporophyll of Undaria pinnatifida to obtain an extract; subjecting the extract to solvent fractionation; and purifying the solvent fraction using a chromatography. The solvent in the first step is water, methanol, or ethanol. The solvent in the second step is a hexane/ethyl acetate mixture. In the third step, a preparative thin layer chromatography and a subsequent preparative liquid chromatography are performed.