The soy isoflavone aglycone was extracted from defated soy by aet he r after acid hydrolysis.The optimum extracting condition was found by single fa ctor and systematical lineartest.

• 以脱脂大豆粕为原料,采取酸水解后用无水乙醚萃取的方法提取大豆异黄酮甙元成分并通过单因素实验和正交实验确定了最佳提取工艺参数。