Table 3. DPPH and ABTS radical scavenging activity of Opuntia spp. fruits extracts

Item	Fruits name	Concentration (μg/mL)
Item	Fruits name	250	500	1,000
DPPH radical scavenging activity	O. ficus-indica	12.68±0.79¹⁾ ²⁾^a³⁾	22.06±0.56^b	36.62±2.46^c
DPPH radical scavenging activity	O. humifusa	10.12±1.74^a^*⁴⁾	13.01±1.74^b^*	21.20±4.72^b^*
ABTS radical scavenging activity	O. ficus-indica	36.08±1.19^a	64.96±0.50^b	93.76±0.65^c^*
ABTS radical scavenging activity	O. humifusa	20.85±0.61^a^*	40.74±0.72^b	73.92±0.42^c

¹⁾ Each value is mean±SD of ≥3 determinations.
²⁾ Values represent an average of three determinations.
³⁾^a-c Means with different superscripts within the same row are significantly different by Duncan's multiple range test (p<0.05).
⁴⁾^* Means within same item are significantly different by Student's t-teat (p<0.05).