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Change of content of protopanaxadiol (PPD), protopanaxatriol (PPT), and ocotillol (OCT) saponins during the steaming process. PPD (1): G-Rb1, G-Rb2, and G-Rd; PPT (1): G-Re and G-Rg1; PPD (2): 20(S) G-Rg3, 20(R) G-Rg3, G-Rk1, and G-Rg5; PPT (2): 20(S) G-Rh1, 20(R) G-Rh1, G-Rk3, and G-Rh4. OCT: M-R1, M-R2, V-R1, and V-R2.
