Antioxidant and Prophylactic Effects of Delonix elata L., Stem Bark Extracts, and Flavonoid Isolated Quercetin against Carbon Tetrachloride-Induced Hepatotoxicity in Rats

Table 4

IC₅₀ values of stem bark extracts of D. elata for in vitro antioxidant activity.

Serial number	Activity	DSP (𝜇g)	DSC (𝜇g)	DSE (𝜇g)	Standard (𝜇g)
1	DPPH radical scavenging	922.1 ± 6.05	165.72 ± 0.2	82.88 ± 0.18	85.26 ± 0.41 (BHT)
2	Superoxide radical scavenging	2459.02 ± 6.04	231.78 ± 1.78	167.24 ± 0.12	101.13 ± 1.0 (Ascorbic acid)
3	Hydroxyl radical scavenging	2852.72 ± 32.55	681.75 ± 6.62	423.43 ± 0.38	125.66 ± 1.2 (BHT)
4	Nitric oxide radical scavenging	2300.14 ± 2.86	519.4 ± 1.18	306.48 ± 1.10	98.34 ± 0.74 (Curcumin)
5	Metal chelating	38861.15 ± 21.35	6659.84 ± 13.87	2111.23 ± 4.42	31.52 ± 0.2 (EDTA)
6	Lipid peroxidation inhibition	10409.9 ± 29.66	1490.42 ± 3.66	939.15 ± 9.61	—

The results shown are averages of three independent experiments; values are mean ± SEM.
BHT-vutylated hydroxytoluene; EDTA-ethylenediaminetetra acetic acid.