ABSTRACT
This paper reports the chemical composition of essential oils obtained from Pinus dalatensis FerreÌ, Pinus kwangtungensis Chun ex. Tsiang and Pinus armandii subsp. xuannhaensis L.K. Phan. The oils were studied by gas chromatograpgy (GC) and gas chromatography coupled to mass spectrometry (GC-MS). The main constituents of P. dalatensis were the terpene hydrocarbons namely α-pinene (38.2%), ß- pinene (25.3%), ß-myrcene (11.0%) and ß-caryophyllene (10.5%), while α-cedrol (19.2%) was the only significant compound of P. armandi subsp. xuannhaensis. P. kwangtungensis showed ß-pinene (26.3%), α-pinene (18.0%), limonene (16.1%) and ß-myrcene (10.4%) as the dominant compounds. The volatile constituents of P. dalatensis and P. armandi subsp. xuannhaensis are being reported for the first time.
En este artiÌculo se reportan los constituyentes quiÌmicos de los aceites esenciales de Pinus dalatensis FerreÌ, Pinus kwangtungensis Chun ex. Tsiang y Pinus armandii subsp. Xuannhaensis L.K. Phan que se analizaron mediante cromatografiÌa de Gases (GC) y por CromatografiÌa de Gases acoplada a la EspectrometriÌa de Masas (GC-EM). Los principales constituyentes de P. dalatensis fueron los hidrocarburos terpeÌnicos, a saber, α-pineno (38.2%), ß-pineno (25.3%), ß-mirceno (11.0%) y ß-cariofileno (10.5%). Por otro lado, α- cedrol (19.2%) fue el uÌnico compuesto significativo de P. armandi subsp. Xuannhaensis mientras que el aceite de P. kwangtungensis estuvo dominado por ß-pineno (26.3%), α-pineno (18.0%), limoneno (16.1%) y ß-mirceno (10.4%). Los constituyentes volaÌtiles de P. dalatensis y P. armandi subsp. xuannhaensis se informa por primera vez.