. 2024 Oct 28;14:25791. doi: 10.1038/s41598-024-74972-7

Table 6.

Chemical composition of Pistacia lentiscus L. EO extracted by HD, SD and SHSE.

Sr. No.	Components	LRI_calc^b	LRI_lit^c	%Composition of essential oil			Method of identification
Sr. No.	Components	LRI_calc^b	LRI_lit^c	HD	SD	SHSE (160 °C)	Method of identification
Monoterpene hydrocarbons
1	γ-terpinene	1062	1065			0.67 ± 0.04^a	a, b
2	α-phellandrene	1005	1011			0.15 ± 0.01^a	a, b
3	α-pinene	938	939	49.5 ± 0.03^c	54.5 ± 0.04^b	60.3 ± 0.01^a	a, b
4	Camphene	953	953	0.09 ± 0.00^c	0.12 ± 0.01^b	1.55 ± 0.04^a	a, b
5	α-thujene	931	928	0.07 ± 0.00^c	0.16 ± 0.01^b	0.56 ± 0.00^a	a, b
6	β-pinene	980	980	0.72 ± 0.01^c	1.66 ± 0.00^b	1.76 ± 0.04^a	a, b
7	3-carene	1001	1011	0.16 ± 0.00^b	0.21 ± 0.01^a		a, b
8	Cymene	1020	1026	0.35 ± 0.00^b	2.52 ± 0.01^a	2.52 ± 0.02^a	a, b
9	Limonene	1031	1031	9.43 ± 0.00^a	5.79 ± 0.05^b	4.32 ± 0.03^c	a, b
10	β-myrcene	991	991	10.33 ± 0.00^a	6.2 ± 0.02^b	5.48 ± 0.01^c	a, b
11	β -ocimene	1041	1040	0.09 ± 0.00^b	0.12 ± 0.01^a		a, b
Oxygenated monoterpene hydrocarbons
12	Carveol	1207	1208			0.36 ± 0.03^a	a, b
13	β-terpineol	1163	1162	0.12 ± 0.00^b		0.8 ± 0.02^a	a, b
14	7-octatriene-2-ol	1134	1132	0.12 ± 0.00^c	0.17 ± 0.03^b	1.17 ± 0.03^a	a, b
15	β-linalool	1198	1098	0.21 ± 0.00^b		0.5 ± 0.01^a	a, b
16	Artemiseole	977	970	0.09 ± 0.00^c	1.06 ± 0.02^b	1.55 ± 0.01^a	a, b
17	α-campholenal	1127	1126	0.12 ± 0.00^c	2.34 ± 0.01^a	1.08 ± 0.03^b	a, b
18	Verbenol	1150	1100	4.1 ± 0.00^a	3.7 ± 0.01^b	1.5 ± 0.02^c	a, b
19	Pinocarvone	1162	1161	0.01 ± 0.00^c	2.98 ± 0.02^a	2.64 ± 0.04^b	a, b
20	Pinocamphone	1160	1160			0.52 ± 0.01^a	a, b
21	α- myrtenol	1193	1188	0.05 ± 0.00^c	3.32 ± 0.02^a	2.01 ± 0.02^b	a, b
22	Cis-verbenone	1204	1189	5.5 ± 0.01^a	2.1 ± 0.03^b	2.14 ± 0.02^c	a, b
23	Cis -dihydrocarveol	1941	1940	0.01 ± 0.00^b	-	0.63 ± 0.03^a	a, b
24	Cis-thujanol	1078	1076		0.37 ± 0.01^a		a, b
25	Camphenol	1105	1102	0.06 ± 0.00^b		0.75 ± 0.00^a	a, b
Sesquiterpene hydrocarbons
26	Germacrene D	1477	1480	3.2 ± 0.02^a	2.5 ± 0.02^b	2.2 ± 0.01^c
27	α-copaene	1376	1381	2.03 ± 0.01^a		0.2 ± 0.00^b	a, b
28	Caryophyllene	1454	1419	2.9 ± 0.03^c	4.8 ± 0.00^a	3.1 ± 0.02^b	a, b
Other hydrocarbons
29	Xylene	877	875	0.02 ± 0.00^a		0.01 ± 0.00^b	a, b
30	2-decyne	1199	1187	0.36 ± 0.03^a	0.03 ± 0.01^c	0.26 ± 0.00^b	a, b
31	Eugenol	1305	1289	0.34 ± 0.01^a			a, b
Total monoterpenes				70.74	71.28	77.31
Total oxygenated monoterpenes				10.39	16.04	15.65
Total sesquiterpenes				8.13	7.3	5.5
Total other hydrocarbons				0.92	0.03	0.27
Overall total concentration				90.18	94.65	98.73

LRI_calc^a = calculated linear retention index; LRI_lit^b = linear retention index taken from reference Both values were calculated as the mean of three GC analysis. Data shown as means ± standard deviations. Different letters in superscripts represent significant differences among Pistacia lentiscus L. oleo gum resin EO derived from different extraction methods. a = identification based on retention index. b = identification based on comparison of mass spectra”.