Abstract:
Eighteen species of Thai rutaceous plants were investigated for their essential oil contents and compositions. Of these plants, four genera belong to the tribe Clauseneae whereas another seven belong to the tribe Citreae. Monoterpenes and sesquiterpenes are commonly found in essential oils of these particular species while phenylpropanoids is available as a minor components. The distribution of monoterpenes and sesquiterpenes in each plant species produce the characteristic smell. Clauseneae was found to be a rich sources of sesquiterpenes while Citreae was found to contain both monoterpenes and sesquiterpenes. One hundred and
forty-three components were detected from 18 selected plant materials. The distribution and diversity of these components among 18 rutaceous plants have been discussed.
