薯蓣皂甙有杀昆虫和抗须癣毛菌等真菌的作用。[化学名称] β-D-Glucopyranoside, (3β,25R)-spirost-5-en-3yl O-6-deoxy---L-mannopyranosyl- (1→2)-O-[6-deoxy-α-L-mannopyranosyl- (1→)]-