. 2022 Apr 19;27(9):2621. doi: 10.3390/molecules27092621

Table 3.

Antioxidant Activity of OB and OH Mixtures and Combination Index.

Mixture OB:OH	Antiradical Activity				Metal-Chelating Activity				Inhibition of Lipid Peroxidation
	PBS		50% MeOH		PBS		50% MeOH		PBS		50% MeOH
	EC₅₀ *	CI	EC₅₀	CI	EC₅₀	CI	EC₅₀	CI	EC₅₀	CI	EC₅₀	CI
9:1	67.8 ± 0.3 ^d**	0.95	25.2 ± 1.8 ^c	0.90	32.4 ± 0.8 ^b	0.84	36.4 ± 1.0 ^a	0.94	10.7 ± 0.2 ^a	0.94	17.5 ± 0.5 ^a	0.69
8:2	65.8 ± 2.7 ^d	0.92	25.0 ± 0.8 ^c	0.92	27.8 ± 0.6 ^a	0.72	34.7 ± 1.1 ^a	0.88	11.0 ± 0.1 ^a	0.99	21.7 ± 1.6 ^c	0.85
7:3	59.5 ± 0.8 ^c	0.80	23.8 ± 0.9 ^c	0.80	33.4 ± 1.2 ^b	0.75	37.4 ± 0.9 ^a	0.82	12.8 ± 0.2 ^b	1.02	18.1 ± 0.7 ^ab	0.66
6:4	53.8± 1.3 ^a	0.71	21.4 ± 0.7 ^ab	0.76	33.8 ± 0.4 ^b	0.73	41.3 ± 0.8 ^b	0.82	13.5 ± 0.8 ^b	1.02	21.6 ± 0.8 ^c	0.76
5:5	53.2 ± 0.6 ^a	0.70	20.0 ± 0.6 ^ab	0.69	34.5 ± 0.9 ^b	0.68	45.7 ± 2.1 ^c	0.81	14.6 ± 0.1 ^cb	1.03	17.5 ± 0.4 ^a	0.59
4:6	56.1 ± 1.3 ^b	0.72	20.1 ± 0.7 ^ab	0.62	41.6 ± 1.0 ^c	0.76	52.0 ± 1.6 ^d	0.83	14.5 ± 0.3 ^cb	0.88	19.1 ± 0.8 ^b	0.57
3:7	55.2 ± 0.7 ^ab	0.69	19.9 ± 0.3 ^a	0.59	45.5 ± 0.2 ^d	0.76	48.7 ± 6.2 ^dc	0.69	14.9 ± 0.1 ^c	0.90	18.1 ± 0.7 ^ab	0.66
2:8	55.9 ± 0.6 ^ab	0.69	20.8 ± 0.7 ^ab	0.60	46.8 ± 0.4 ^d	0.71	63.5 ± 1.0 ^e	0.79	16.8 ± 0.8 ^d	0.93	19.5 ± 0.7 ^b	0.59
1:9	55.5 ± 0.3 ^b	0.68	21.4 ± 0.8 ^ab	0.59	52.6 ± 1.2 ^e	0.74	72.2 ± 1.8 ^f	0.76	18.0 ± 0.2 ^d	0.91	21.5 ± 0.3 ^c	0.61

* EC₅₀—half maximal inhibitory concentration, CI—combination index, ^** Means in rows followed by different lowercase letters (a–e) are significantly different at p < 0.05.