Table 10.

Enantiomeric distributions of chiral terpenoids present in wintergreen essential oil based on different distillation conditions; “–” indicates not detected; “+” indicates dextrorotatory.

Chiral Compounds	Enantiomeric Distribution, Dextrorotatory (+), and Levorotatory (−)
	W5		W6		W7		W8
	(+)	(−)	(+)	(−)	(+)	(−)	(+)	(−)
Linalool	55.1	44.9	61.7	38.3	56.9	43.1	57.6	42.4
α-Terpineol	33.1	66.9	31.9	68.1	32.6	67.4	31.6	68.4
Limonene	100.0	0.0	100.0	0.0	100.0	0.0	100.0	0.0
Camphene	100.0	0.0	–		–		–
β-Phellandrene	100.0	0.0	–		–		–
Germacrene D	–		–		100.0	0.0	–