Table 2.

Comparison of major components of essential oils from tea trees of various origins.

Compounds	Australiaa	USAb	Indiac	Brazild	Taiwan
	% of totale
Terpinen-4-ol	36.7	42.9	36.4	53.7	33.0
γ-Terpinene	22.2	19.4	23.0	18.9	14.0
α-Terpinene	10.1	10.4	11.9	7.6	5.8
1,8-Cineole	2.5	0.5	4.5	—f	27.7

^aReported by Shelli et al [25].

^bReported by Kawakami et al [26].

^cReported by Verghese et al [27].

^dReported by Silva et al [28].

^eIntegral of peak area in the GC chromatograms is used.

^fNot found.