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PCA projection plots for ASR and CR. (A) Score plots for crude ASR, wine-treated ASR, crude CR and wine-treated CR using common components as the input data. (B) Score plots for crude and wine-treated ASR and CR, as in (A), using the peak areas of five chemical markers, namely ferulic acid, butylphthalide, Z-butylidenephthalide, senkyunolide A and Z-ligustilide.
