由忍冬葉桑寄生新鮮葉部乙醇抽出物中，以分配萃取法分苯、氯仿、酪酸乙醋、正丁醇、水等五部份，在醋酸乙醋抽出物中單離出化合物A及B，經物理、化學性質與光譜的分析，及對照標準品，分別鑑定為quercetin及quercitrin。並經由TLC分析可能尚含有4種黃酮素，其中與標準品比較知含有kaempferol。 The fresh leaves of Scurrula lonicerifolius (HAY.) DANSER has been studied.Quercetin and quercitrin were isolated from ethyl acetate portion and were identified by direct comparison with authentic samples.
