Effects of Ultrasound Technique on the Composition of Different Essential Oils

Table 2

Changes in the chemical composition in solutions of basil oil.

Compound	IR	Chemical composition of essential oil (mg/ml)
		Alcohol solutions					Hexane solutions
		A	B	C	D	K	A	B	C	D	K
Pinene <alpha->	939	0.89	0.81	0.70	0.84	0.89	1.06	1.09	1.00	1.12	1.05
Pinene <beta->	981	0.57	0.39	0.45	0.42	0.44	0.68	0.70	0.63	0.72	0.66
Cineole <1,8->	1033	5.41^a	5.40^a	5.55^a	5.57^a	5.70^a	5.97^a	6.11^a	5.72^a	6.10^a	5.94^a
Linalool	1099	11.78^a	11.29^a	11.63^a	11.67^a	11.52^a	11.07^a	10.61^a	10.74^a	11.56^a	10.89^a
Menthol	1172	0.24	0.33	0.43	0.52	0,47	0.54	0.57	0.52	0.53	0.63
Methyl chavicol	1200	63.31^a	64.40^a	61.96^a	62.21^a	62.18^a	62.26^a	64.06^a	63.31^a	63.53^a	63.79^a
Geraniol	1254	0.29	0.29	0.38	0.31	0.32	0.31	0.32	0.38	0.36	0.37
Anethole <Z->	1255	0.27	0.25	0.28	0.24	0.25	0.35	0.36	0.31	0.35	0.36
Eugenol	1360	0.22	0.12	0.22	0.17	0.20	0.35	0.37	0.33	0.38	0.31
Methyl cinnamate <E->	1380	1.34	1.34	1.04	1.27	1.38	1.18	1.24	1.10	1.26	1.15
Bergamotene <alpha-trans->	1436	0.77	0.51	0.65	0.55	0.60	0.87	0.88	0.79	0.91	0.85
Cinnamaldehyde <E-para-methoxy->	1566	1.41	1.34	1.31	1.33	1.36	0.99	1.05	0.96	0.98	0.94
Cadinol <epi-alpha->	1642	0.22	0.12	0.18	0.14	0.18	0.22	0.23	0.20	0.24	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).