Abstract: The chemical components of Pinus elliottii Engelm. oleoresin from Brazil were analyzed by gas chromatography-mass spectrometry(GC-MS). Twenty-seven compounds were separated and identified, which represent over 93% of the total contents of the oleoresin. These main compounds were monoterpinenes and diterpinenes, as well as trace sesquiterpinenes. As compared with oleoresin of P. elliottii from Zhanjiang, Guangdong Province in China, the chemical components and contents of these oleoresins were nearly the same. That means the same pine species dispersed in the different areas has the similar chemical characteristics of the oleoresins.

Key words: Pinus elliottii Engelm. oleoresin, gas chromatography-mass spectrometry, chemical component