Antifungal activities of essential oils and their constituents from indigenous cinnamon (Cinnamomum osmophloeum) leaves against wood decay fungi
Resource
Bioresource Technology 96, 813–818
Journal
Bioresource Technology
Pages
-
Date Issued
2005-07-16
Date
2005-07-16
Author(s)
DOI
246246/2006111501254262
Abstract
Cinnamomum osmophloeum Kaneh is one of the hardwood species indigenous to Taiwan that possesses significant antifungal activity. To examine the antifungal activity of leaf essential oils & dominant constituents from C. osmophloeum, the essential oils of leaves from three clones (A, B, & C) collected from Haw-Lin experimental forest were extracted & their components analyzed by gas chromatography. Results from the antifungal tests demonstrated that the essential oils of both B & C leaves had strong inhibitory effects. The antifungal indices of these two leaf oils at 100ppm against five strains of white rot fungi & four strains of brown rot fungi were all 100%. Cinnamaldehyde, the major compound in C. osmophloeum leaf essential oils, possessed the strongest antifungal activities compared with the other components. Its antifungal indices against both Coriolus versicolor & Laetiporus sulphureus were 100%. The MIC (minimum inhibitory concentration) of cinnamaldehyde against C. versicolor & L. sulphureus was 50 & 75ppm, respectively. In addition, comparisons of the antifungal indices of cinnamaldehydes congeners proved that cinnamaldehyde exhibited the strongest antifungal activities.
Subjects
Cinnamomum osmophloeum
Leaf
Essential oil
Cinnamaldehyde
White rot fungi
Brown rot fungi
Antifungal activity
Publisher
Taipei:National Taiwan University Dept Elect Engn
Type
journal article
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