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Fig. 3
Uncovering active constituents by multivariate data analysis. (A) Correlation matrix and (B) VIP values of peak areas correlating with the relative inhibition rates of PN samples. (C) The chromatograms of the mixed standards solution and SPNE sample steamed at 120°C for 6 h. Peaks 6, 8, 9,10 and 11 correspond to ginsenosides Rh1, Rk3, Rh4, 20(S)-Rg3, and 20(R)-Rg3, respectively. (D) Structures of the ginsenosides Rh1, Rk3, Rh4, 20(S)-Rg3, and 20(R)-Rg3.
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