Department of Biological Sciences, Higher Institute of Biotechnology, University of Monastir, Monastir, Tunisia.
Nat Prod Res. 2011 Jan;25(1):77-84. doi: 10.1080/14786419.2010.513685.
The essential oils isolated at the flowering stage in spring, summer and autumn of the aerial and underground parts of Conyza bonariensis L. growing in Tunisia were analysed by GC and GC/MS; 143 constituents were identified, and among them 20 were major. The oils of C. bonariensis gathered in spring were rich in matricaria ester (1.2-67.3%), (Z)-nerolidol (0.3-19.9%) and caryophyllene oxide (0.8-14.3%). In the summer samples, the oils of C. bonariensis were rich in matricaria ester (1.6-76.4%), caryophyllene oxide (1.6-22.6%) and (E)-β-farnesene (1.1-22.7%). The main constituents in the autumn samples were matricaria ester (trace to 63.5%), geranyl acetone (0.0-25.3%), trans-α-bergamotene (0.0-24.3%) and limonene (2.7-15.3%). The oils showed significant variation among the seasons. Remarkable differences were found between the constituent percentages of the different studied organs. The C. bonariensis sample from Tunisia was a matricaria ester chemotype and was quite different from the samples of other countries of origin.
对生长在突尼斯的春、夏、秋三个不同生长阶段的天蓝飞蓬地上和地下部分的挥发油进行 GC 和 GC/MS 分析，共鉴定出 143 种成分，其中 20 种为主要成分。春季采集的天蓝飞蓬挥发油富含母菊酯（1.2-67.3%）、（Z）-橙花叔醇（0.3-19.9%）和石竹烯氧化物（0.8-14.3%）。夏季采集的天蓝飞蓬挥发油富含母菊酯（1.6-76.4%）、石竹烯氧化物（1.6-22.6%）和（E）-β-法呢烯（1.1-22.7%）。秋季采集的天蓝飞蓬挥发油主要成分是母菊酯（痕量至 63.5%）、香叶基丙酮（0.0-25.3%）、反式-α-柏木烯（0.0-24.3%）和柠檬烯（2.7-15.3%）。不同季节的挥发油存在显著差异，不同研究器官的成分百分比也存在显著差异。突尼斯的天蓝飞蓬样本是一种母菊酯化学型，与其他来源国的样本有很大的不同。
