4SHI W, Wang Y T, Li J, et al. Investigation of ginsenosides in di?erent parts and ages of Panax ginseng[J]. Food Chemistry, 2007, 102:664-668.
5Sun B S, Pan F Y, Sung C K. Repetitious Steaming-induced Chemical Transformations and Global Quality of Black Ginseng Derived from Panax ginseng by HPLC-ESI-MS/MSn Based Chemical Profiling Approach [J]. Biotechnology and Bioprocess Engineering, 2011, 16(5): 956-965.
6Sun B S, Xu M Y, Li Z, et al. UPLC-Q-TOF-MS/MS Analysis for Steaming Times-dependent Profiling of Steamed Panax quinquefolius and Its Ginsenosides Transformations Induced by Repetitious Steaming [J]. J Ginseng Res, 2012, 36(3): 277-290.
7Lau A J, Woo S O, Koh H L. Analysis of saponins in raw and steamed Panax notoginseng using high- performance liquid chromatography with diode array detection[J]. J. Chromatogr. A, 2003, 1011(1-2):77-87.