Chemical Composition and Corrosion Resistance of the Essential Oil from Buried Wood of Hainan Cypress

The chemical constituents of essential oil from buried wood of Hainan Cypress were separated and identified by GC-MS. Relative contents of essential oil were determined by peak area normalization. 39 compounds from the essential oil were separated and identified, which account for 91.843 % of total essential oil. The main chemical constituents and contents were cedrol (23.516 %), phthalalic acid (11.843 %), D-limonene (10.103 %), dibutyl phthalate(9.843 %) and phenol(5.324 %). The test of the corrosion resistance showed that Hainan Cypress had strong inhibitory on growth on Gloeophyllum trabeum Murr and Coriolus versicolor.(4.365 % and 4.58 % of weight loss of wood sample were determined in the base and middle of Cypress Gloomy wood respectively)