蜂胶因产地不同成分也不同。作者首次发现中国蜂胶提取物有强的抗增殖活性,继之从中分离出2个新的黄酮类化合物和12个已知成分,并对它们的抗增殖活性进行了检测。蜂胶用水于80℃提取2次,每次2 h,滤除不溶物。将滤液冷却,得油脂样物质,剩 Propolis differs in its composition from place to place. The authors first discovered that Chinese propolis extracts have strong antiproliferative activity, followed by the separation of two new flavonoids and 12 known components, and their anti-proliferative activity was tested. Propolis was extracted twice with water at 80 °C for 2 h each time and insoluble material was filtered off. The filtrate is cooled, resulting in oil-like material, leaving