Profiling of volatile components using gas chromatography-mass spectrometry in commercial pine needle (Pinus densiflora S. and Z.) powder.

摘要

Volatile components in commercial pine needle powder were extracted using simultaneous steam distillation and solvent extraction (SDE) equipment, and analysed using GC-MS. A total of 230 compounds divided into 13 groups were identified, which included alcohols (42), ketones (39), aldehydes (32), terpenes (30), alkenes (17), esters (14), furans (14), benzenes (10), alkanes (8), napthalenes (7), acids (6), miscellaneous compounds (6) and phenols (5). Among the 230 compounds identified, 96 were positively confirmed and quantified, and the remainder tentatively identified. Major volatile components identified at relatively high levels were dodecanoic acid, hexadecanoic acid, hexanal, benzaldehyde, (Z)-3-hexen-1-ol, 1-penten-3-one, limonene and beta-caryophyllene oxide. Terpenes accounted for 60.18% of the total concn. of all volatile components. Some volatile components may account for the unique aroma and biological activity of samples.