The yield and melting point of diosgenin were taken as investigated standard index to compare this method with others, such as acid hydrolysis, spontaneous fermentation, and enzymatic hydrolysis.

• 以产品的收率和熔点为考察标准，比较阶梯生物催化法与直接酸水解法、自然发酵法以及酶解法的优劣。