Table 6. Antioxidant activity of commercial orange and grapefruit juices

Sample	DPPH radical scavenging activity (%)	ABTS radical scavenging activity (%)	Reducing power
OJ1	60.55±1.52¹⁾^c²⁾	46.68±2.13^d	0.70±0.03^e
OJ2	95.96±1.53^a	70.66±1.40^a	1.11±0.01^a
OJ3	90.74±8.33^a	64.76±0.69^b	0.96±0.04^b
GJ1	72.12±0.35^b	42.86±2.16^e	0.84±0.01^d
GJ2	88.33±5.62^a	50.97±0.16^c	0.88±0.01^c
GJ3	70.58±2.71^b	39.63±3.19^e	0.71±0.02^e

¹⁾Mean±S.D (n=3).
²⁾Values with different superscript letter in the column are significantly different at p<0.05 by Duncan’s multiple range test.