Abstract The volatile chemical constituents derived from two Asteraceae species ( Artemisia judaica and A. herba-alba ) were analyzed and compared for the first time using gas chromatography techniques (GC–MS, GC–FID, Co-GC, LRI determination, database and literature searches) on two different stationary phase columns (polar and nonpolar). This analysis led to the identification of a total of 110 and 81 components from whole plant (stems, leaves and flowers) oils of A. judaica and A . herba-alba respectively. The major classes of compounds in both plants included oxygenated monoterpenes, sesquiterpenes and hydrocarbons. The prominent components in the oil of A. judaica were β -eudesmol, hexadecanoic acid, spathulenol, eudesma-4 (15),7-dien-1- β -ol, carvacrol and thymol which account for 67.3% of the total essential oils composition (96.7%). While the main oil constituents from A. herba-alba were piperitone, ( E )-ethylcinnamate, ( Z )-ethylcinnamate, thymol, isophrone which account for 78.0% of the total oil composition (99.6%). Comparison showed similar composition in thymol and spathulenol while in others major constituents, have opposite values. To the best of our knowledge, both plant species ( A. judaica and A. herba-alba ) from Saudi Arabia were considered for the first time in this study. In addition, the oils of these plants were screened for their bio-activities and were found to possess significant anti-microbial activities.

中文翻译：

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沙特阿拉伯胡蒿精油与白蒿精油的比较研究

摘要 首次使用气相色谱技术（GC-MS、GC-FID、Co-GC、LRI 测定、数据库和 A. Herba-alba）分析和比较了两种菊科植物（Artemisia judaica 和 A. herba-alba）的挥发性化学成分。文献搜索）在两种不同的固定相柱（极性和非极性）上。该分析导致从 A. judaica 和 A. 的全植物（茎、叶和花）油中鉴定出总共 110 和 81 种成分。Herba-alba 分别。两种植物中的主要化合物类别包括含氧单萜、倍半萜和碳氢化合物。A. judaica油中的主要成分是β-eudesmol、十六烷酸、spathulenol、eudesma-4(15)、7-dien-1-β-ol、香芹酚和麝香草酚，占精油总量的67.3%组成（96.7%）。而来自 A. herba-alba 的主要油成分是胡椒酮、( E )-肉桂酸乙酯、( Z )-肉桂酸乙酯、百里酚、异佛尔酮，它们占总油成分的 78.0% (99.6%)。比较显示百里酚和匙羹藤酚的相似成分，而其他主要成分具有相反的值。据我们所知，本研究首次考虑了沙特阿拉伯的两种植物物种（A. judaica 和 A. herba-alba）。此外，对这些植物油的生物活性进行了筛选，发现它们具有显着的抗微生物活性。比较显示百里酚和匙羹藤酚的成分相似，而其他主要成分具有相反的值。据我们所知，本研究首次考虑了沙特阿拉伯的两种植物物种（A. judaica 和 A. herba-alba）。此外，对这些植物油的生物活性进行了筛选，发现它们具有显着的抗微生物活性。比较显示百里酚和匙羹藤酚的相似成分，而其他主要成分具有相反的值。据我们所知，本研究首次考虑了沙特阿拉伯的两种植物物种（A. judaica 和 A. herba-alba）。此外，对这些植物油的生物活性进行了筛选，发现它们具有显着的抗微生物活性。