Figure 5.

Box-plot diagram of p-coumaryl cinnamate (5) concentration (mg/g) for 118 samples grouped according to their respective grades A (n = 45), B (n = 45), and C (n = 28).

Box-plot diagram of p-coumaryl cinnamate (5) concentration (mg/g) for 118 samples grouped according to their respective grades A (n = 45), B (n = 45), and C (n = 28).