Table 1: Composition of the supercritical extracts of the three thyme varieties obtained in separators 1 and 2, and the contribution of each compound to the total chromatographic area. N-I: nonidentified compound; R.I.: linear retention index; n.d.: non detected.

CompoundRet. time (min)R.I.Thymus hyemalis Thymus zygis Thymus vulgaris
Separator 1Separator 2Separator 1Separator 2Separator 1Separator 2
% Area% Area% Area% Area% Area% Area

P-cymene12.9310222.972.774.772.984.905.57
1,8 cineole13.30102920.9719.391.03n.d.1.290.95
Gamma-terpinene14.8910560.810.670.70.51.141.11
Sabinene15.3710652.521.97n.d.0.451.370.92
Linalool17.3910993.731.576.304.226.613.72
Camphor19.74114027.4419.631.471.041.490.83
Borneol21.0311638.338.434.714.013.352.60
Alpha-terpineol22.5111883.963.800.660.820.810.45
Bornyl acetate28.1812821.671.24n.d.0.710.810.75
Thymol28.63129010.0523.0170.8675.0465.4371.15
Carvacrol29.2112990.641.344.204.614.264.30
Isobornyl propionate34.6213721.210.87n.d.n.d.n.d.n.d.
E-caryophyllene37.7814124.053.042.011.254.512.22
N-I39.6314330.09n.d.1.842.982.634.49
Germacrene-D43.1314741.731.26n.d.n.d.n.d.n.d.
Gamma-elemene44.5214901.971.55n.d.n.d.n.d.n.d.
Elemol49.3715521.151.46n.d.n.d.n.d.n.d.
Spathulenol51.2115762.422.85n.d.n.d.n.d.n.d.
Caryophyllene oxide51.4215791.340.901.41.041.330.87
N-II56.5216832.774.15n.d.0.28n.d.n.d.