. 2011 Sep 13;16(9):7773–7788. doi: 10.3390/molecules16097773

Table 2.

Effects of Pinus cembra L. extracts in different antioxidant assays.

Extract/Positive control	DPPH radical scavenging assay EC₅₀ *	ABTS radical cation scavenging assay		Reducing power assay EC₅₀ *	Ferrous ion chelating ability assay EC₅₀ *
Extract/Positive control	DPPH radical scavenging assay EC₅₀ *	EC₅₀ *	TEAC **	Reducing power assay EC₅₀ *	Ferrous ion chelating ability assay EC₅₀ *
Bark extract	71.1 ± 0.5	6.3 ± 0.2	0.90 ± 0.01	26.0 ± 0.3	-
Needle extract	186.1 ± 1.7	24.0 ± 0.2	0.3 ± 0.0	104 ± 2	1,755 ± 22
Gallic acid	1.56 ± 0.05	0.6 ± 0.0	18.13 ± 0.16	1.53 ± 0.00	-
(+)-Catechin	5.56 ± 0.05	1.16 ± 0.05	7.92 ± 0.05	3.70 ± 0.03	-

* μg/mL; ** μM Trolox equivalent to 1 μg/mL extract/positive control.