Chemical composition and insecticidal activity of plant essential oils from Benin against Anopheles gambiae (Giles)

Table 4 Chemical composition and oil yields of Cochlospermum species

KI_exp^a	KI_lit^b	ID^c	Compounds^d	*C. planchonii*	*C. tinctorium*
KI_exp^a	KI_lit^b	ID^c	Compounds^d	%	%
1025	1020	MS, RI	p-Cymene	0.3
1100	1099	MS, RI	Undecane	0.1
1154	1148	MS, RI	Citronellal	0.2
1183	1178	MS, RI	Naphthalene	0.1
1258	1249	MS, RI	Piperitone	0.1
1309	1305	MS, RI	Undecanal	0.2
1382	1389	MS, RI	β-Elemene	1.0	0.6
1388	1398	MS, RI	Cyperene	0.1	0.1
1400	1408	MS, RI	Dodecanal	0.1	0.1
1405	1411	MS, RI	Z-α-Bergamotene		0.1
1408	1417	MS, RI	E-Caryophyllene		0.1
1425	1432	MS, RI	E-α-Bergamotene		0.6
1437	1445	MS, RI	Epi-β-Santalene		0.1
1492	1469	MS, RI	1-Dodecanol	0.5
1493	1506	MS, RI	Z-α-Bisabolene		0.3
1499	1505	MS, RI	β-Bisabolene		2.2
1500	1499	MS, RI	2-Tridecanone	6.8	3.4
1505	1514	MS, RI	Z-γ-Bisabolene		0.1
1512	1509	MS, RI	Tridecanal	0.3
1513	1511	MS, RI	δ-Amorphene		0.1
1515	1524	MS, RI	Methyl dodecanoate		0.5
1522	1529	MS, RI	E-γ-Bisabolene		0.3
1578	1576	MS, RI	Dodecanoic acid	1.2
1576	1574	MS, RI	Cyclododecanone		7.8
1585	1582	MS, RI	Caryophyllene oxide	0.3	0.1
1598		MS	3-Tetradecanone	24.7	48.3
1599	1607	MS, RI	Dodecyl acetate	4.9	2.0
1602	1611	MS, RI	Tetradecanal		0.3
1663	1658	MS, RI	Neo-Intermedeol	0.1
1680	1685	MS, RI	α-Bisabolol		0.1
1695	1671	MS, RI	n-Tetradecanol	3.0
1702	1697	MS, RI	2-Pentadecanone	5.7	0.7
1717	1722	MS, RI	Methyl tetradecanoate		2.3
1775	1780	MS, RI	Tetradecanoic acid	0.5
1786		MS	3-Hexadecanone	2.0	7.4
1795	1795	MS, RI	Ethyl tetradecanoate	11.4
1798		MS	1-Tetradecanyl acetate		4.3
1818	1822	MS, RI	Hexadecanal		0.6
1846	1844	MS, RI	Isoamyl dodecanoate	14.1
1874		MS	Pentadecanol	2.0
2003		MS	4-Octadecanone	2.2
			Yields	0.2	0.2
			Total identified	81.9	82.5

^aKI_exp = retention indices are determined using n-alkanes (C₇-C₁₇).
^bKI_lit = retention indices of reference compounds from literature.
^cID = Identification methods; MS = comparison of the mass spectrum with those of the computer mass libraries, and Adams (2007); RI = comparison of calculated RI with those reported in the literature.
^dCompounds are listed in order of their retention time; the names and the percentages of main compounds are indicated in bold.

ISSN: 1756-3305