Transformation of var. phytoestrogens using immobilized and free β-glucosidase, a technique for enhancing estrogenic activity.

var. (PM) has a significant beneficial effect on postmenopausal symptoms associated with estrogen deficiency. However, the estrogenic activity and intestinal absorption of isoflavonoid glycosides derived from PM, such as daidzin and genistin, are significantly lower than those of their aglycones.