Angelica sinensis (Oliv.) Diels: Influence of Value Chain on Quality Criteria and Marker Compounds Ferulic Acid and Z-Ligustilide.

Regression of Head Size, Root Length and Provincial Origin with Main Active Compounds Dang gui roots showed a highly significant negative relation between both the size of the head (β; measured as diameter) and the root length (γ) and the amount of ferulic acid ( b = −0.60, t (1) = −1.88, p < 0.001; c = −0.75, t (1) = −4.22, p < 0.001).

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