作者以抗诱变活性为导向,从皂荚Gleditsiasinensis Lam.的干燥棘刺提取物中分得1个三萜类化合物(1)和4个甾体化合物(2~5),并初步研究了它们的抗诱变活性。皂荚棘刺粉末用80%甲醇回流提取2次,提取液真空浓缩至干,依次用二氯甲烷、醋酸乙酯、正丁醇提取。取部分二氯甲烷干浸膏经( The authors obtained a triterpenoid compound (1) and four steroid compounds (2~5) from the dry barbed spine extract of Gleditsia sinensis Lam. and their anti-mutagenicity activity. Mutagenic activity. The saponin spiny powder was extracted twice with 80% methanol, and the extract was concentrated in vacuo to dryness and extracted with dichloromethane, ethyl acetate and n-butanol in that order. Take some methylene chloride dry extract (