Effects of Ultrasound Technique on the Composition of Different Essential Oils

Table 3

Changes in the chemical composition in solutions of marjoram oil.

Compound	IR	Chemical composition of essential oil (mg/ml)
		Alcohol solutions					Hexane solutions
		A	B	C	D	K	A	B	C	D	K
Thujene <alpha->	931	0.96	1.00	1.10	1.04	1.05	1.02	1.01	1.03	1.04	1.00
Pinene <alpha->	939	1.15	1.19	1.31	1.24	1.25	1.23	1.23	1.24	1.27	1.22
Sabinene	975	7.02	7.23	7.93	7.52	7.55	7.18	7.14	7.17	7.26	7.04
Pinene <beta->	982	0.59	0.61	0.68	0.64	0.63	0.63	0.64	0.64	0.65	0.63
Myrcene	994	2.17	2.3	2.46	2.34	2.34	2.24	2.23	2.26	2.29	2.23
Phellandrene <alpha->	1008	0.49	0.52	0.57	0.54	0.54	0.51	0.50	0.50	0.52	0.51
Terpinene <alpha->	1020	7.37^a	7.18^a	6.50^a	6.91^a	7.02^a	7.49^a	7.40^a	7.42^a	7.16^a	7.30^a
Cymene <para->	1026	3.01	3.2	3.40	3.25	3.26	3.14	3.06	3.06	3.09	3.00
Limonene	1030	2.33	2.46	2.65	2.45	2.53	2.33	2.35	2.34	2.35	2.38
Phellandrene <beta->	1031	2.29	2.33	2.54	2.46	2.42	2.27	2.17	2.20	2.25	2.14
Terpinene <gamma->	1060	10.60^a	9.64^a	10.18^a	10.41^a	10.45^a	10.62^a	10.36^a	10.37^a	10.19^a	10.15^a
Sabinene hydrate <cis->	1071	3.53	3.75	3.57	3.60	3.28	3.43	3.34	3.37	3.39	3.31
Terpinolene	1091	3.22	3.39	3.64	3.42	3.08	3.20	3.10	3.12	3.16	3.11
Linalool	1099	2.7	2.49	2.35	2.41	2.27	2.84	2.75	2.75	2.75	2.81
Sabinene hydrate <trans->	1102	9.62^a	8.68^a	8.31^a	8.76^a	8.80^a	9.62^a	9.36^a	9.39^a	9.50^a	9.45^a
Menth-2-en-1-ol <cis-para->	1122	1.65	1.79	1.32	1.34	1.70	1.56	1.53	1.55	1.57	1.57
Menth-2-en-1-ol <trans-para->	1140	1.22	1.3	1.28	1.23	1.25	1.17	1.17	1.18	1.20	1.19
Terpinen-4-ol	1178	14.49^a	14.50^a	14.70^a	14.20^a	15.31^a	15.09^a	14.93^a	15.03^a	15.24^a	15.16^a
Terpineol <alpha->	1190	4.23	4.09	4.51	4.25	4.03	3.59	3.90	3.91	3.96	3.92
Piperitol <cis->	1199	0.70	0.75	0.73	0.64	0.67	0.63	0.64	0.64	0.64	0.64
Citronellol	1227	0.58	0.63	0.61	0.57	0.54	0.55	0.54	0.53	0.54	0.54
Linalyl acetate	1257	2.56	2.09	2.74	2.55	2.65	2.40	2.39	2.4	2.42	2.41
Myrtanol <trans->	1261	0.59	0.63	0.61	0.58	0.42	0.56	0.56	0.56	0.57	0.57
Terpinen-4-ol acetate	1302	0.31	0.24	0.34	0.37	0.32	0.30	0.28	0.29	0.37	0.29
Caryophyllene <E->	1420	3.09	3.39	2.71	3.14	3.16	2.85	2.80	2.74	2.64	2.80
Bicyclogermacrene	1503	1.59	1.68	1.67	1.59	1.6	1.46	1.40	1.41	1.47	1.43
Spathulenol	1580	0.22	0.24	0.22	0.22	0.02	0.21	0.21	0.21	0.21	0.21
Caryophyllene oxide	1585	0.22	0.24	0.23	0.22	0.20	0.22	0.22	0.22	0.22	0.22

Designation according to Table 1. IR: retention indices (from temperature programming, using the definition of Van den Dool and Kratz [17]). Values designated with the same superscript letters for the dominant compound do not significantly differ at 5% error (Duncan’s test).