Meanwhile, it determined and found out that the substrates of biological alkali, flavonoid, organic acid, phenol, tannin, saponin, steroid, glycoside, and triterpene also existed in the callus. 生藤中新甾体皂苷衍生物的结构鉴定同时测定出枣树愈伤组织中还含有生物碱、黄酮类、有机酸、酚类、鞣质、皂甙、甾体、三萜等物质。