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首页> 外文期刊>Natural product communications >Chemical Variability of the Essential Oil Isolated from Aerial Parts of Tetraclinis articulata from North-Western Algeria
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Chemical Variability of the Essential Oil Isolated from Aerial Parts of Tetraclinis articulata from North-Western Algeria

机译：阿尔及利亚西北部四叶草空中部分分离出的香精油的化学变异性

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摘要

The objective was to investigate the yield and chemical composition of 50 essential oil samples isolated from leaves and flowers of Tetraclinis articulata harvested in eight locations (coastal township and highlands) of Tlemcen Province (North-Western Algeria). Essential oil yields varied drastically from sample to sample (0.03 to 0.86%, w/w). No direct correlation was observed between the yield and the altitude of the harvest areas. The oils consisted mainly of monoterpenes: alpha-pinene (9.2-56.5%), bomyl acetate (1.2-45.1%), camphor (0.5-40.3%), bomeol (0.2-12.9%), limonene (3.6-12.5%), and myrcene (1.6-9.7%). Sesquiterpenes were represented by germacrene D (up to 14.2%) and (E)-beta-caryophyllene (up to 13.3%). PCA analysis of the data allowed the distinction of two groups within the samples. The composition of group I (9 samples) was dominated by camphor, (Mean = 30.9%) followed by a-pinene (M = 19.1%) and bornyl acetate (M = 11.4%). Group II was divided into two sub-groups. Samples of sub-group IIA (8 samples) contained mainly a-pinene (M = 45.4%). Samples of the largest group IIB (33 samples) were characterized by similar contents of a-pinene (M = 28.2%) and bornyl acetate (M = 24.5%) and the occurrence of camphor to a lesser extent (M = 10.0%).
机译：目的是调查从特莱姆森省（西北阿尔及利亚）的八个地点（沿海乡镇和高地）收获的四叶草的叶子和花朵中分离出的50种精油样品的产量和化学成分。样品之间的精油产率大不相同（0.03至0.86％，w / w）。在产量和收获地区的海拔之间没有观察到直接相关性。这些油主要由单萜组成：α-pine烯（9.2-56.5％），乙酸苄酯（1.2-45.1％），樟脑（0.5-40.3％），薄荷油（0.2-12.9％），柠檬烯（3.6-12.5％），和月桂烯（1.6-9.7％）。倍半萜烯以germ草烯D（占14.2％）和（E）-β-石竹烯（占13.3％）为代表。对数据进行PCA分析可以区分样品中的两组。第一组（9个样品）的成分以樟脑（平均值= 30.9％）为主，其次是α-pine烯（M = 19.1％）和乙酸冰片酯（M = 11.4％）。第二组分为两个子组。 IIA组的样品（8个样品）主要包含α-a烯（M = 45.4％）。最大的IIB组样品（33个样品）的特征在于α-pine烯（M = 28.2％）和乙酸冰片酯（M = 24.5％）的含量相似，樟脑的发生程度较小（M = 10.0％）。

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