ABSTRACT
Six samples of the essential oils obtained by hydrodistillation of stems and leaves of Zingiber spectabile were analyzed by GC and GC/MS. The mean oil yields were 0.027% for the leaves and 0.01% for the stems. The oils contained homogeneous qualitative compositions with high percentages of monoterpene hydrocarbons. The major components of the leaf and stem oils were α-pinene (7.44–11.42% and 10.78–13.69%), β-pinene (35.85–49.35% and 23.52–26.17%) and β-phellandrene (16.59–18.45% and 23.11–38.05%), respectively.