Comparative Analysis of the Antioxidant Activity of Cassia fistula Extracts

Table 2

EC₅₀ value is defined as the effective concentration of antioxidant necessary to decrease the radical concentration by 50%. FRAP values represent as equivalent mmol of Fe²⁺/gram sample.

Cassia fistula extracts	EC50 (DPPH); mg/mL	EC50 (hydroxyl peroxide); mg/mL	FRAP; value
MEP	0.915	0.889	136.05
MES	1.088	1.058	112.02
HEP	1.865	1.723	75.09
HES	2.239	2.075	69.02
Ascorbic acid	0.102	0.105	—