用马桑寄生叶提取分离马桑内酯混合结晶时,从水母液中析出黄酮类物质,经分离得到三种结晶,理化鉴定和光谱分析证明晶Ⅰ为槲皮素,晶Ⅱ为广寄生甙即萹蓄甙,晶Ⅲ为檞皮甙。按常法用醋酸乙酯从马桑寄生叶中提取的总黄酮层析鉴定尚含有D—儿茶素。 The flavonoids were isolated from the jellyfish by the extraction and separation of the matriole lactone mixed crystals. The three crystals were separated. Physicochemical identification and spectral analysis proved that the crystal I was quercetin and the crystal II was broad-spectrum. That is to say, 晶 萹 甙 甙, Crystal III 檞 甙 甙. According to the conventional method, the chromatogram of the total flavonoids extracted from the leaves of Marsh mulberry with ethyl acetate still contained D-catechin.