Table 4.

Mean concentrations (%) of Ruta graveolens fruit EO (terpinen-4-ol, α-terpineol, trans-pinocarveol, nopinone, and eucalyptol) obtained from the six distillation times (DT). Control = nonstop 0–90 min.

DT (min)	Terpinen-4-ol	α-Terpineol	trans-Pinocarveol	Nopinone	Eucalyptol
0–5	4.12 b	5.22 b	2.04 b	2.69 c	14.95 b
5–10	5.37 a	8.35 a	1.60 c	3.03 b	19.04 a
10–30	2.05 c	3.73 c	3.54 a	3.75 a	4.65 c
30–60	1.06 d	2.02 d	0.00 d	0.00 d	2.67 d
60–90	0.71 e	0.93 e	0.00 d	0.00 d	1.03 e
Control	0.62 e	0.57 f	0.00 d	0.00 d	0.29 e

Within each column, means followed by the same letter are not significantly different at α = 5%.