Table 1.

Antioxidant compounds comparing EHRA and DPPH reduction (errors shown are ±SD, n = 3)

Antioxidant	EHRAa	DPPHa
Quercetin	1.41 ± 0.45	51.86 ± 0.79
Gallic acid	1.68 ± 0.32	37.05 ± 0.84
Ascorbic acid	9.33 ± 1.06	181.64 ± 1.93
Ferulic acid	16.22 ± 2.01	186.64 ± 9.87
Tocopherol	21.74 ± 2.48	192.75 ± 8.33
Cysteine	25.20 ± 3.69	224.95 ± 6.73

^aValues shown are the IC₅₀ (micromole)