“…A large number of literature studies have shown that ginsenosides, lignans and ophiopogonins are the major bioactive constituents in SMS and some of its modern preparations [1,2,7,8,9]. Many researchers have studied the ginsenosides and lignans in YQFM or other Sheng-mai preparations using HPLC-UV/MS or near infrared spectroscopy [10,11,12,13,14], but few of the studies have focused on analysis of ophiopogonins in YQFM. O. japonicus , which contains ophiopogonins, is an essential component of SMS, conferring better biological activity in terms of cardiovascular diseases [15,16,17,18].…”