Abstract In this paper, a detailed study on chemical characterization of essential oils (EOs) constituents of leaves and stems of Achillea fragrantissima were carried out using GC-FID and GC–MS analysis employing two different stationary phase columns. In the studied plant which is collected from the central region of Saudi Arabia, trans-sabinyl acetate and trans-sabinol have been identified as the major components. To the best of our knowledge, these components are being reported for the first time as the major constituents in the EOs of A. fragrantissima. The results showed that chief chemical components of both (leaves and stems) oils were found to be almost same, however, their contents varied noticeably from each other. Among 108 identified components in the leaves oil, the major components were trans-sabinyl acetate (20.7 ± 0.00), trans-sabinol (14.9 ± 0.13), artemisia ketone (12.7 ± 0.46), santolina alcohol (10.1 ± 1.30), β-sesquiphellandrene (5.5 ± 0.01), β-thujone (5.1 ± 0.11). Whereas, in the stem oil 85 components were identified and trans-sabinyl acetate (24.0 ± 0.19), trans-sabinol (19.2 ± 0.01), artemisia ketone (16.3 ± 0.74), santolina alcohol (10.4 ± 1.50), and β-sesquiphellandrene (4.8 ± 0.01) were found to be the major components. Among the identified components form both oils, 23 components were specific to only leaves oil, whereas 85 components were found to be common in both oils.

中文翻译：

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沙特阿拉伯中部地区香椿叶和茎精油次级代谢产物的表征

摘要 在本文中，使用两种不同的固定相色谱柱，使用 GC-FID 和 GC-MS 分析对香薷叶和茎的精油 (EOs) 成分进行了详细的化学表征。在从沙特阿拉伯中部地区收集的研究植物中，已确定反式醋酸盐和反式沙宾醇为主要成分。据我们所知，这些成分是第一次被报道为 A. fragrantissima EOs 的主要成分。结果表明，发现两种（叶和茎）油的主要化学成分几乎相同，但它们的含量彼此明显不同。叶油中鉴定出的 108 种成分中，主要成分为醋酸反式沙宾酯（20.7±0.00），trans-sabinol (14.9 ± 0.13), 蒿酮 (12.7 ± 0.46), santolina 醇 (10.1 ± 1.30), β-倍半叶萜 (5.5 ± 0.01), β-thujone (5.1 ± 0.11)。然而，在茎油中鉴定出 85 种成分，包括反式香柏醇 (24.0 ± 0.19)、反式香柏醇 (19.2 ± 0.01)、蒿酮 (16.3 ± 0.74)、山柰醇 (10.4 ± 1.50) 和 β-倍半酚(4.8 ± 0.01) 被发现是主要成分。在鉴定出的两种油的成分中，23 种成分仅对叶油具有特异性，而发现 85 种成分在两种油中是常见的。发现蒿酮 (16.3 ± 0.74)、桑托林醇 (10.4 ± 1.50) 和 β-倍半叶萜烯 (4.8 ± 0.01) 是主要成分。在鉴定出的两种油的成分中，23 种成分仅对叶油具有特异性，而发现 85 种成分在两种油中是常见的。发现蒿酮 (16.3 ± 0.74)、桑托林醇 (10.4 ± 1.50) 和 β-倍半叶萜烯 (4.8 ± 0.01) 是主要成分。在鉴定出的两种油的成分中，23 种成分仅对叶油具有特异性，而发现 85 种成分在两种油中是常见的。