Four solvent extraction of Cinnamomum camphora xylem and analysis of the anti-fungal activity of the extractives
Four solvents including distilled water, acetone, ethyl acetate and petroleum ether were used to extract xylem of C. camphora. The differences in chemical compounds of xylem of C. camphora were analyzed by gas chromatography/mass spectrometry (GC/MS) and the anti-fungal activity of C. camphora extractives on Coriolus versicolor (CV), Trametes versicolor (TV), Poria vaporaria (PP) and Gloeophyllum trabeum (GT) were tested. The result showed that the chemical composition and relative content of the four different solvent extracts were different. A large number of chemical compounds in the C. camphora extractives had a variety of biological activity and certain application value. The growth inhibitory rates of ethyl acetate extracts of C. camphora on PP, CV, TV and GT were 52.24%, 52.51%, 43.26%, and 54.63%, respectively. According to the concentration for 50% of maximal effect, the inhibitory order on test fungus were GT > PP > CV > TV.