The leaf oil of Pittosporum floribudum Weight & Am. collected from Nghe An province, in October 2004 was isolated by steam distillation to give oil yield 0.15% and analyzed by Capillary GC and GC/MS. Thirty five components have been identified accounting more than 98% of the oil. The major constituents of this oil appeared to be a pinene (42.97%) and limonene (40.46%). Predominant minor compounds included p-pinene (5.17%) undecane (3.96%) and p-myrcene (2.45%)
Oils, Volatile ; Plants, medicinal ; Pharmaceutical Preparations ; Medicine, Traditional

The study on chemical components of volatile oil of Nga Truat root collected in Nghe An and Ha Tinh provinces found that in the mobile fluid of yellowish volatile oil of Nga Truat with special are matic of curcuma an essential productivity of 0,22% of fresh root was identified. In volatile oil samples, rich content of epicurzerenon, germacrone was determined. The other components of lower contents are betapinen 1,8- cineole, caphor, isoborneol, beta- elemene, zingiberen, benzofuran -6- ethyxyl 4,5,6,7- tetrahydro-3,6- dimethyl -5-isopropyl, T- muurolol. Monoterpen content in volatile oils is lower considerably than the content of sesquiterpen and oxygene containing conrespondents substances. There compounds give special aromatic smell of the oils
Oils, Volatile ; Curcuma ; Plants, Medicinal