Abstract

Chemical studies on the oleoresins from 22 species of Chinese pines showed that α-pinene, β-pinene, limonene, longifolene, caryophyllene, pimaric acid, communic acid, sandaracopimaric acid, isopimaric acid, palustric/levopimaric acids, dehydroabietic acid, abietic acid and neoabietic acid were among the main constituents. Each of the pine oleoresins in this study had unique characteristics in the composition of its oleoresin. The presence of lambertianic acid was the main difference between oleoresins of sect. Strobus and sect. Pinus. Communic acid and cembrene were detected for the first time in Chinese oleoresins.

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