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抗氧化活性指导分离,从万寿菊(Tagetes maxima)茎叶的甲醇提取物中得到3个酰化万寿菊黄素糖苷(1～3)和4个已知黄酮糖苷。万寿菊茎叶(750g),用甲醇室温提取,得提取物(157.9g)。甲醇提取物混悬于水,用己烷脱脂,得己烷可溶部分和脱脂部分。脱脂部分用乙酸乙酯萃取,得乙酸乙酯萃取
The antioxidant activity guides the isolation of 3 acylated glycoside glycosides (1-3) and 4 known flavonol glycosides from the methanol extract of Tagetes maxima stems and leaves. Stevia leaves (750 g) were extracted with methanol at room temperature to give an extract (157.9 g). The methanol extract was suspended in water and defatted with hexane to obtain a hexane-soluble portion and a defatted portion. Degreasing part is extracted with ethyl acetate to obtain ethyl acetate extraction