The essential oils (EOs) of the aerial parts of four
Asarum species (
A. geophilum,
A. yentunensis,
A. splendens and
A. cordifolium) were isolated by steam distillation and analyzed by the GC/MS method. The
A. cordifolium EO contains 33 constituents with
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The essential oils (EOs) of the aerial parts of four
Asarum species (
A. geophilum,
A. yentunensis,
A. splendens and
A. cordifolium) were isolated by steam distillation and analyzed by the GC/MS method. The
A. cordifolium EO contains 33 constituents with the main component being elemicine (77.20%). The
A. geophilum EO was contains 49 constituents with the main components being determined as 9-
epi-(
E)-caryophyllene (18.43%), eudesm-7(11)-en-4-ol (13.41%),
β-caryophyllene (8.05%) and phytol (7.23%). The
A. yentunensis EO contains 26 constituents with the main components being safrole (64.74%) and sesquicineole (15.34%). The EO of
A. splendens contains 41 constituents with the main components being 9-
epi-(E)-caryophyllene (15.76%), eudesm-7(11)-en-4-ol (14.21%),
β-caryophyllene (9.52%) and
trans-bicyclogermacrene (7.50%). For antimicrobial activity, the
A. yentunensis EO exhibited the highest inhibition activity against
Staphylococcus aureus and the
A. cordifolium EO against
Bacillus subtillis (MIC values of 100 μg/mL). For antioxidant activity, the
A. geophilum EO showed the highest potential with an SC (%) value of 63.34 ± 1.0%, corresponding to an SC
50 value of 28.57 µg/mL. For anti-inflammatory activity, the
A. splendens EO exhibited the highest potential with an IC
50 value of 21.68 µg/mL, corresponding to an inhibition rate of NO production of 69.58 ± 1.3% and the percentage of cell life was 81.85 ± 0.9%.
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