Inhibitory effects of Azadirachta indica secondary metabolites formulated cosmetics on some infectious pathogens and oxidative stress radicals

Table 10 Chemical profiles of secondary metabolites in A. indica essential oils

S/N	SM ^a	KI ^b	%composition		MI ^c	QA ^d	MS data ^e	MF^*
S/N	SM ^a	KI ^b	LEO	SBEO	MI ^c	QA ^d	MS data ^e	MF^*
1	α-Pinene	927	4.10	0.50	MSD, KI	99	79, 93,136	C₁₀H₁₆
2	Camphene	944	–	3.00	MSD, KI	97	93, 69,136	C₁₀H₁₆
3	Myrcene	970	5.60	t	MSD, KI	99	41, 93, 69	C₁₀H₁₆
4	Limonene	1031	10.4	5.50	MSD, KI	98	68, 93, 79	C₁₀H₁₆
5	Terpinene	1063	2.70	13.70	MSD, KI	96	77, 93, 121	C₁₀H₁₆
6	Linalool oxide	1068	6.40	15.20	MSD, KI	99	91, 41, 43	C₁₀H₁₆
7	Linalool	1089	4.10	4.60	MSD, KI	95	44, 71,113	C₁₀H₁₈O
8	β-Curcumene	1120	–	7.81	MSD, KI	97	109,161, 43	C₁₅H₂₂
9	α-Cedrene	1129	2.20	t	MSD, KI	91	93, 41, 204	C₁₅H₂₄
10	α –Cubebene	1369	1.60	3.00	MSD, KI	97	43, 68, 161	C₁₅H₂₄
11	γ-Elemene	1385	10.20	5.10	MSD, KI	99	43, 68, 204	C₁₅H₂₄
12	α- Caryophyllene	1415	30.30	8.30	MSD, KI	98	93, 41, 79	C₁₅H₂₄
13	Caryophyllene oxide	1545	2.40	5.10	MSD, KI	98	41, 79, 111	C₁₅H₂₄O
14	Ledol	1560	–	2.40	MSD, KI	96	93, 79, 133	C₁₅H₂₆O
15	Hexadecanoic acid	1968	5.40	10.20	MSD, KI	96	43, 60, 73	C₁₆H₃₂O₂
16	Heptadecane	2030	2.40	2.30	MSD, KI	95	43, 60, 256	C₁₇H₃₆
17	Linoleic acid	2039	2.11	5.40	MSD, KI	98	73,265,279	C₁₈H₃₂O
18	Phytol	2045	–	9.12	MSD, KI	99	41,71, 123	C₂₀H₄₀O
19	Tetracosane	2105	–	1.32	MSD, KI	98	73, 43, 129	C₂₄H₅₀
% Total			98.91	99.45
% Yield			0.72	0.58

^aSecondary metabolites listed in order of elution from HB-5 column
^bRetention indices relative to C₉ - C₂₅ n-alkanes on column
^cmethods of identification (mass spectra data & KI = retention index)
^dQuality assurance of GC/MS library
^emass spectra data
^*molecular formula t < 0.03%, LEO = leaves essential oil, SBEO = stem bark essential

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