Volatile Oil Constituents of the Fresh Rhizomes of Curcuma amada Roxb.

Abstract

The steam distilled oil obtained from the fresh rhizomes of Curcuma amada Roxb. contained 26 components, of which 24, comprising 96.1% of the oil, were completely identifed. The oil contained 10 monoterpenes and 14 sesquiterpenes accounting for 12.2% and 83.9%, respectively. The predominant monoterpene identifed was camphor (5.5%). The sesquiterpene fraction consisted mainly of hydrocarbons (ca 83.6%) and the prominent hydrocarbons were (Z)-β-farnesene (21.9 %), guaia-6,9-diene (19.8%), α-longipinene (14.8%) and α-guaiene (14.5%).The aromatic constituent contributing to the odor of the oil were thymol (4.9%).

Key Word Index:

• Curcuma amada
• Zingiberaceae
• essential oil composition
• α-longipinene
• (Z)-β-farnesene
• guaia-6,9-diene
• α-guaiene