Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/70782
標題: Composition, Antioxidant, Antimicrobial and Anti-wood-decay Fungal Activities of the Twig Essential Oil of Taiwania cryptomerioides from Taiwan
作者: Ho, C.L.
Yang, S.S.
Chang, T.M.
Su, Y.C.
關鍵字: Taiwania cryptomerioides
Cupressaceae
Essential oil
Antioxidant
activity
Antimicrobial activity
Anti-wood-decay fungal activity
alpha-Cadinol
beta-Eudesmol
Ferruginol
leaf essential oil
chemical-composition
antifungal activity
antibacterial
heartwood
extractives
diterpenes
hayata
期刊/報告no:: Natural Product Communications, Volume 7, Issue 2, Page(s) 261-264.
摘要: This study investigated the chemical composition, antioxidant, antimicrobial and anti-wood-decay fungal activities of the essential oil isolated from the twigs of Taiwania clyptomerioides from Taiwan. The essential oil was isolated using hydrodistillation in a Clevenger-type apparatus, and characterized by GC-FID and GC MS. A total of 35 compounds were identified, representing 100% of the oil. The main components identified were alpha-cadinol (45.9%), ferruginol (18.9%) and beta-eudesmol (10.8%). The antioxidant activity of the oil was tested by the DPPH (2,2-dipheny1-1-picrylhydrazyl) free radical scavenging capability test. The results showed an IC50 of 90.8 +/- 0.2 mu g/mL. The active source compound was ferruginol. The antimicrobial activity of the oil was tested by the disc diffusion and micro-broth dilution methods against ten microbial species. The oil exhibited strong growth suppression against Gram-positive bacteria and yeast with inhibition zones of 45-52 mm and MIC values of 31.25-62.5 mu g/mL, respectively. The anti-wood-decay fungal activity of the oil was also evaluated. The oil demonstrated excellent activity against four wood-decay-fungal species. For the antimicrobial and anti-wood-decay fungal activities of the oil, the active source compounds were determined to be alpha-cadino1,beta-eudesmol and ferruginol.
URI: http://hdl.handle.net/11455/70782
ISSN: 1934-578X
Appears in Collections:期刊論文

文件中的檔案:

取得全文請前往華藝線上圖書館



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.