title: Composition and antifungal activities of the leaf essential oil of Neolitsea parvigemma from Taiwan.
abstract: The hydrodistillated leaf essential oil of Neolitsea parvigemma was analyzed to determine its composition and yield. Sixty-two compounds were identified, the main components being beta-caryophyllene (14.2%), beta-eudesmol (12.9%), alpha-cadinol (10.2%) and tau-cadinol (8.8%). Oxygenated sesquiterpenes (48.9%) and sesquiterpene hydrocarbons (48.8%) were the predominant groups of compounds. The antifungal indexes of the leaf oil against the 7 fungi, Aspergillus clavatus, A. niger, Chaetomium globosum, Cladosporium cladosporioides, Myrothecium verrucaria, Penicillium citrinum and Trichoderma viride, were 100.0, 72.3, 100.0, 100.0, 100.0, 75.8 and 88.6% at a 1 mg/mL concentration, respectively. The oil also exhibited anti-wood-decay-fungi activity against Trametes versicolor, Phaneochaete chrysosporium, Phaeolus schweintizii, and Lenzites sulphureu with MIC values of 50, 50, 25 and 25 microg/mL, respectively. For the antifungal and anti-wood-decay fungal activities of the oil, the active source compounds were determined to be alpha-cadinol, beta-eudesmol and tau-cadinol.
authors.affiliation: Department of Forestry, National Chung Hsing University, 250 Kuo Kuang Rd., Taichung, Taiwan 402.
authors.forename: Chen-Lung
authors.initials: CL
authors.lastname: Ho
authors.forename: Pei-Chun
authors.initials: PC
authors.lastname: Liao
authors.forename: Eugene I-Chen
authors.initials: EI
authors.lastname: Wang
authors.forename: Yu-Chang
authors.initials: YC
authors.lastname: Su
mesh_terms: D000935:Antifungal Agents / Q000737:chemistry / Q000494:pharmacology*; D005658:Fungi / Q000187:drug effects*; D019770:Lauraceae / Q000737:chemistry*; D009822:Oils, Volatile / Q000737:chemistry / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry / Q000494:pharmacology*; D013624:Taiwan
chemical_list: D000935:Antifungal Agents; D009822:Oils, Volatile; D010938:Plant Oils