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. 2011 Aug 25;2012:728065. doi: 10.1155/2012/728065

Table 3.

Antioxidative capacities of the essential oils and methanol extracts of Thymus species a.

Plant oils, methanol extracts,and controls Test system
DPPH IC50 (μg/mL) β-Carotene/linoleic acid (% inhibition rate)
T. kotschyanus oil 278 ± 1.9 69.2 ± 0.5
T. daenensis subsp lancifolius oil 99.6 ± 0.5 88.4 ± 0.8
T. eriocalyx oil 198 ± 1.4 57.6 ± 0.6
T. kotschyanus polar sub-fraction 128 ± 0.9 61.2 ± 0.5
T. kotschyanus non-polar sub-fraction 526 ± 3.1 81.4 ± 0.6
T. daenensis subsp lancifolius polar sub-fraction 19.1 ± 0.1 50.2 ± 0.4
T. daenensis subsp lancifolius non-polar sub-fraction 248.7 ± 1.6 92.1 ± 1.1
T. eriocalyx polar sub-fraction 34.2 ± 0.4 67.9 ± 0.7
T. eriocalyx non-polar sub-fraction 426.2 ± 2.7 96.1 ± 0.8
BHT 18.2 ± 0.3 96.4 ± 0.9

aResults are means of three different experiments.