Antifungal Activities of Three Supercritical Fluid Extracted Cedar Oils

IRG/WP 09-30501

Tianchuan Du, T F Shupe, Chung Y Hse

The antifungal activities of three supercritical CO2 (SCC) extracted cedar oils, Port-Orford-cedar (POC) (Chamaecyparis lawsoniana), Alaska yellow cedar (AYC) (Chamaecyparis nootkatensis), and Eastern red cedar (ERC) (Juniperus virginiana L), were evaluated against two common wood decay fungi, brown-rot fungi (Gloeophyllum trabeum) and white-rot fungi (Trametes versicolor). The statistical analysis showed that SCC extracted cedar oils had higher antifungal activities othan hexane Soxhlet extracted cedar oils against both white-rot fungi and brown-rot fungi. In vitro studies showed that AYC oils showed the strongest antifungal activity among the three cedar wood oils, followed by POC oil and ERC oil.


Keywords: antifungal, cedar, environment friendly, supercritical fluid, wood preservatives

Conference: 09-05-24/28 Beijing, China


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