关键词: 红花桑寄生, 黄酮类化合物, 正交实验, 提取

Abstract: Extraction process of flavonoids from stems and leaves of Scurrula parasitica was studied. Extract of flavonoids from stems and leaves of S. parasitica was filtered with ethanol and purified with polyamide. Using color-developing method, flavonoids were measured with aluminium nitrate that was quantitated at 510nm. For orthogonal experimental design, rutin was used as a standard compound. The results showed that the optimal conditions for extraction from leaves were 70% ethanol, ratio of material to solution (W:V) 1:35, and extracted for 3h at 80℃; and for extraction from stems were 50% ethanol, ratio of W to V 1:15 and extracted for 3h at 80℃. The average yield of flavonoids from leaves and stems were 9.47% and 5.25%, respectively.

Key words: Scurrula parasitica, flavonoids, orthogonal experimental design, extraction