Volatile Constituents Of The Leaves And Flowers Of Salvia Przewalskii Maxim. From Tibet

The composition of the volatile oils obtained from the leaves and flowers of Salvia przewalskii Maxim. grown in Tibet was analysed by gas chromatography-mass spectrometry (GC-MS) for the first time. Totals of 43 compounds were identified in the leaf oil and 69 compounds in the flower oil. A comparative study of the oil composition from the leaves and flowers found 22 common constituents of these oils, viz. alpha-thujene, ss-phellandrene, linalool, terpinene-4-ol, diisopropenyl methyl vinyl cyclohexane, caryophyllene, germacrene D, borneol, caryophyllene oxide, spathulenol, germacrene B, delta-cadinene, humulene, farnesane, alpha-cadinol, ss-caryophyllene, elemene, sabinene hydrate, gamma-terpinene, p-cymene, camphene and a-pinene. The percentages of the most components were higher in the leaf oil than in the flower oil, especially those of ss-phellandrene and caryophyllene (26.08% and 11.11%, respectively). Farnesene, chamigrene, n-hexadecane, epicedrol, cyclotetradecane, n-octadecane, 9-octadecen-1-ol, 1-heneicosyl formate, Z-8-hexadecen-1-ol acetate, n-heneicosane and n-pentacosane were the specific constituents found only in the flower oil, while ss-cadinol was the specific constituent found only in the leaf oil. Copyright (c) 2006 John Wiley & Sons, Ltd.