Impact of Different Extraction Solvents on Phenolic Content and Antioxidant Potential of Pinus densiflora Bark Extract

Table 4

Correlation between total phenol content (TPC) and antioxidant activity of Pinus densiflora bark (PDB) extracts.

Correlation analysis	TPC vs. DPPH	TPC vs. TAC	TPC vs. ABTS	TPC vs. FRAP	TPC vs. H2O2
Pearson r
r	0.9857	0.9834	0.9877	0.9507	0.9497
R squared	0.9715	0.9672	0.9756	0.9039	0.9019
P value	<0.001	<0.001	<0.001	<0.001	<0.001
P value summary
Significant? (alpha = 0.05)	Yes	Yes	Yes	Yes	Yes