Table 2.

The major constituents (%) of the essential oil of Pinus mugo in comparison with ISO 21093 (2003)

Constituents	“Sharri” National Park										“Bjëshkete Nemuna” National Park									ISO 21093
	Ostrovicë				Pashallarë			Oshlak			Hajle			Liqenat			Koprivnik
	KI	N	T	N + T	N	T	N + T	N	B	N + T	N	T	N + T	N	T	N + T	N	T	N + T
α-pinene	940	22.6	7.9	15.25	17.2	9.7	13.45	17	8.8	12.9	19.9	5.6	12.75	23.9	7.4	15.65	24.5	6.9	15.7	10–30
β-pinene	979	1.6	5.5	3.55	3.7	14.4	9.05	5.5	15.4	10.45	2.8	2.2	2.5	3.4	3.5	3.45	2.7	2.8	2.75	3–14
Myrcene	990	1.4	2.1	1.75	1.8	1.6	1.7	2.6	2.3	2.45	2.4	2.7	2.55	6.1	10.3	8.2	3.2	4.3	3.75	3–11
δ-3-CARENE	1011	19.8	32.4	26.1	16.3	34	25.15	17.7	28.6	23.15	27.9	51.7	39.8	17.3	29	23.15	15.5	24	19.75	5–25
p-Cymene	1024	0.3	0.5	0.4	0.5	0.6	0.55	0.2	0.4	0.3	0.3	0.4	0.35	0.2	0.3	0.25	0.2	0.3	0.25	tr-2.5
Limonene + β-Phellandrene	1031	2	24.3	13.15	3.3	12.7	8	5.9	17.9	11.9	3.8	14.3	9.05	2.3	21.1	11.7	4.8	23.2	14	Lim. 8–14 β-Phell. 8-17
Terpinolene	1088	3.2	2.6	2.9	3.2	2.7	2.95	4.3	2.7	3.5	2.8	4.3	3.55	2.2	2.9	2.55	3.3	2.5	2.9	1–8
Bornyl acetate	1285	2.6	0.4	1.5	5.2	1.2	3.2	4.3	2.6	3.45	4.6	1.8	3.2	8.1	3	5.55	7.1	2.4	4.75	1–5
E-caryophyllene	1418	9	7.3	8.15	8.1	6.1	7.1	5.3	5.9	5.6	4.5	4	4.25	5.1	6.7	5.9	4.6	10.9	7.75	0.5–5

Italics marked symbols represents the percentages of each compounds obtained by distillation of twigs and leaves together, as well as the International Standards (ISO 21093) requirements for essential oils obtained from branches of P. mugo

ISO 21093-minimum and and maximum of constituents given regarding  % ISO 21093

N needles, T twigs, N + T needles and twigs