Abstract：
Daucus genus (Apiaceae) comprises economically relevant plants distributed in temperate regions. These plants are used mainly as food but are also known for their biological properties. Here, the essential oils (EOs) obtained by hydro-distillation of roots and stems of D.sahariensis Murb. growing in Algerian Sahara were studied by GC-MS analysis. Fifty-two and fifty-five compounds were identified from the roots and stems, representing 95.1% and 93.8% of the whole EOs respectively. The main constituents of the EO from roots were myristicin (29.2%), (E)-anethole (14.2%), cis-chrysanthenyl acetate (8%) and estragol (7.5%). In the EO from stems, the main constituents were α-pinene (18.6%), myrcene (16.7%), limonene (13.7%) and myristicin (8%). The antibacterial activity of EOs was evaluated by disc diffusion method and tested against Gram-positive and Gram-negative bacteria. Results showed a mild activity against Bacillus subtilis and Klebsiella pneumoniae for both EOs, which can be potentially used as antibacterial in phytotherapy.
摘要：
Ducus属（Apiaceae）包括分布在温带地区的经济相关植物。这些植物主要用作食物，但也因其生物学特性而闻名。这里,通过水蒸馏D.sahariensisMurb的根和茎获得的精油（EO）。通过GC-MS分析研究了阿尔及利亚撒哈拉的生长。从根和茎中鉴定出52种和55种化合物，分别占整个EO的95.1%和93.8%。根中EO的主要成分是肉豆蔻酸（29.2％），(E)-茴香脑(14.2%),顺式-菊花基乙酸酯（8％）和雌二醇（7.5％）。在来自茎的EO中，主要成分为α-pine烯（18.6％），月桂烯（16.7%），柠檬烯（13.7%）和肉豆蔻霉素（8%）。通过圆盘扩散法评估EOs的抗菌活性，并对革兰氏阳性和革兰氏阴性细菌进行测试。结果显示两种EOs对枯草芽孢杆菌和肺炎克雷伯菌的活性较低，它有可能在植物疗法中用作抗菌药物。
