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前期研究显示辽东楤木Aralia elata Seem.根的提取物对大鼠有抗分泌和抗胃损伤作用。作者以生物活性为导向,从辽东木根皮中分离出抗溃疡活性成分——楤木皂苷A,并研究了该化合物对几种胃溃疡模型的抗溃疡作用。将该植物干燥根皮切片后用70%甲醇在水浴中回流提取2次,共4h。提?
Previous studies showed that extracts from roots of Aralia elata Seem. of Quercus liaotungensis had anti-secretory and anti-gastric effects in rats. The authors isolated the anti-ulcer activity active ingredient 楤Saponin A from the root barks of Quercus liaotungensis with biological activity as the guide, and studied the anti-ulcer effects of this compound against several gastric ulcer models. The dried root bark of the plant was cut and extracted twice with 70% methanol in a water bath for 4 hours. mention?