Table 3.

The differences in chemical compositions between RPR and RPA ($\overline{x}$ ± s, mg·g⁻¹).

Classification	Paeoniflorin	Albiflorin	Gallic acid	Galloyglucoses	Methyl gallate	Paeoniflorin sulfonate
RPR	76.2 ± 1.11	2.15 ± 1.07	3.43 ± 0.77	21.51 ± 15.97	7.32 ± 6.01	ND
RPA	27.9 ± 1.01b	12.61 ± 3.09 b	2.01 ± 0.36b	11.20 ± 2.27a	2.58 ± 1.06 b	13.71 ± 8.78b

Radix Paeoniae Rubra (RPR), Radix Paeoniae Alba (RPA), N(RPR)=15, N(RPA)=17, ^aP < 0.05, ^bP < 0.01 compared with RPR. ND means no corresponding ingredients.