Table 2.

Chemical structure, phenolic contents and DPPH scavenging capacity of the Ocimum gratissimum leaves extract

Retention time (min)	Chemical name	Chemical Structure	Content (%, wt/wt) OG
6.0010	Methyl ester	CH3 – RCOOR	0.039
6.0710	Glycerin	C3H8O3	0.56
17.062	p-Cymene	C10H14	5.52
20.402	Sabinene	C10H16	4.61
42.395	2-isopropyl-5-methylphenol (Thymol)	C10H14O	0.20
45.311	α-copaene	C15H24	0.96
47.012	Trans-caryophyllene	C15H24	0.40
50.005	β-Selinene	C15H24	0.31
52.102	Phenol, 3-(1,1-dimethylethyl)-4-methoxy-	C12H18O2	0.90
54.633	Caryophyllene oxide	C15H24O	2.07
64.065	Neophytadiene	C20H38	2.99
65.100	Phytol	C20H40O	0.63
70.355	Carvacrol (2-methyl-5-(propan-2-yl)phenol	C10H14O	0.92
Total Phenolic Content of the Extract
EXTRACT		TPC (mg GAE/100 g)
Ocimum gratissimum leaves		80.36 ± 0.50
DPPH Scavenging Capacity of the Extract
EXTRACT		Scavenging activity (IC50; mg/mL)
Ocimum gratissimum leaves		22.12 ± 0.43

Half-maximal concentration (IC₅₀) values for the DPPH free radical-scavenging activity assay and content of phenolic of Ocimum gratissimum extract. Values shown are means of three replicates (n = 3) ± SEM