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Table 2 DPPH and ABTS antioxidant assays and total phenolic content for germinated brown rice (GBR) in comparison to brown rice (BR)

From: Ethyl acetate extract of germinated brown rice attenuates hydrogen peroxide-induced oxidative stress in human SH-SY5Y neuroblastoma cells: role of anti-apoptotic, pro-survival and antioxidant genes

Extract

DPPH free radical scavenging assay*,#

ABTS scavenging activity (mg TEAC/g extract)#

Total phenolic content (mg GAE/g extract)#

GBR

2.32 + 0.04 **

23.89 + 0.24 **

17.01 + 1.27 **

BR

10.37 + 0.47

3.59 + 0.09

10.81 + 0.24

  1. *Expressed as IC50 (mg/ml), calculated from Trolox standard curve (y = 0.0087x + 4.587, r2 = 0.9957), with smaller values signifying higher antioxidant capacity. #Values expressed as mean ± standard deviation. ** Indicates statistical significance at p < 0.05 compared to BR for each assay represented in a column. ABTS, 2,2′-azino-bis[3-ethylbenzothiazoline-6-sulphonic acid]; DPPH, di[phenyl]-[2,4,6-trinitrophenyl]iminoazanium.