Table 1.

Chemical composition (percentage mean value ± standard deviation) of exocarp and mesocarp.

No.	Component 1	LRI 2	LRI 3	Exocarp 4 (%)	Mesocarp 5 (%)
1	α-thujene	923	925	0.5 ± 0.02	0.4 ± 0.03
2	α-pinene	941	943	1.6 ± 0.02	1.4 ± 0.01
3	β-thujene	966	968	0.2 ± 0.01	-
4	β-pinene	980	986	2.5 ± 0.02	2.4 ± 0.02
5	α-phellandrene	998	996	-	tr
6	p-cymene	1020	1016	0.2 ± 0.02	0.7 ± 0.03
7	limonene	1024	1023	75.8 ± 0.02	76.2 ± 0.02
8	cis-β-ocimene	1035	1032	1.2 ± 0.02	1.1 ± 0.02
9	γ-terpinene	1057	1054	16.5 ± 0.02	15.0 ± 0.02
10	α-terpinolene	1081	1078	0.2 ± 0.02	0.6 ± 0.02
11	α-terpineol	1185	1183	0.1 ± 0.01	0.4 ± 0.02
12	carveol	1205	1201	-	0.1 ± 0.00
13	4-terpinenyl acetate	1282	1286	0.5 ± 0.02	0.1 ± 0.02
14	α-citral	1285	1287	-	0.1 ± 0.00
15	α-bergamotene	1433	1431	0.3 ± 0.02	0.6 ± 0.02
16	α-himachalene	1451	1447	0.1 ± 0.02	0.6 ± 0.02
17	γ-gurjunene	1482	1479	-	tr
18	α-farnesene	1510	1506	0.2 ± 0.02	-
	SUM			99.9	99.7
	Monoterpene hydrocarbons			98.7	97.8
	Oxygenated monoterpenes			0.6	0.7
	Sesquiterpene hydrocarbons			0.6	1.2

¹ The components are reported according to their elution order on apolar column; ², Linear Retention Indices measured on apolar column; ³, Linear Retention Indices from literature; Exocarp ⁴, percentage mean values of exocarp components (%); Mesocarp ⁵, percentage mean values of mesocarp components; -, not detected; tr, traces (mean value < 0.1%).