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Purpose . The purpose of this study is to determine the antifungal and antioxidant activities of the essential oil from  Angelica koreana .  Methods . Essential oil was obtained from the dried roots of  A. koreana  by steam distillation, and its composition was identified by gas chromatography and mass spectrometry (GC-MS). The minimal inhibitory concentrations (MICs) of the oil fraction and its main components were determined by broth dilution assay using common pathogenic  Aspergillus  and  Trichophyton  species. The combined effects of the oils with itraconazole were evaluated using a checkerboard titer test. In addition, 1,1-diphenyl-2-picryl-hydrazil (DPPH) free radical scavenging, nitrite inhibition, and reducing power were determined to assess the antioxidant activity of this oil.  Results . The essential oil fraction and its main components showed inhibitory activity against all of the tested fungi, with minimal inhibitory concentrations (MICs) of 250–1000  μ g/mL. Furthermore, this oil exhibited synergism when combined with itraconazole.  Conclusion . In the treatment of infections caused by  Aspergillus  and  Trichophyton  species, combining itraconazole with either  A. koreana  essential oil or its main components may reduce the minimum effective dose of itraconazole required and, thus, minimize its side effects. In addition, this oil is a promising source of natural antioxidant agents.

Antifungal and Antioxidant Activities of the Essential Oil fromAngelica koreanaNakai