Lavender, otherwise known as Lavandula angustifolia Mill., is widely used in landscaping, and its oil is a valuable raw material used in many industries. Therefore, new varieties of this plant are bred. The essential oil composition obtained from fresh flowers of thirteen new Ukrainian cultivars of L. angustifolia were analysed by GC-MS, and eighty-two components were identified. Linalool and linalyl acetate were principal constituents of all of the samples, and ranged from 11.4% to 46.7% and 7.4% to 44.2%, respectively. None of the studied samples fulfilled the requirements of Ph. Eur. and ISO 3515:2002. The main reason was a high content of α-terpineol (0.5–4.5%) and/or terpinene-4-ol (1.2–18.7%). Our results are in line with multiple researchers showing that the studied lavender oils do not comply with the industry standards despite their authenticity. We also investigated the effect of the growth year on the chemical composition of five tested cultivars grown on the same plots and noticed a considerable variability between years. The obtained experimental data did not show a significant inter-year trend for the content changes of the major components. Our results allow us to deeply characterize the new cultivars and evaluate their oil for a possible use in the industry, or to designate them for future selective breeding.

中文翻译：

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Lavandula angustifolia Mill 新品种精油的化学成分。在乌克兰培育

薰衣草，也称为Lavandula angustifolia Mill.，广泛用于园林绿化，其油是许多行业使用的宝贵原料。因此，培育出这种植物的新品种。用GC-MS 分析了从乌克兰13 个新品种L. angustifolia 的鲜花中提取的精油成分，确定了82 种成分。芳樟醇和乙酸芳樟酯是所有样品的主要成分，含量分别为 11.4% 至 46.7% 和 7.4% 至 44.2%。所研究的样品均不符合欧洲博士学位的要求。和 ISO 3515:2002。主要原因是α含量高-萜品醇 (0.5–4.5%) 和/或萜品烯-4-醇 (1.2–18.7%)。我们的结果与多名研究人员一致，表明所研究的薰衣草油尽管真实，但不符合行业标准。我们还研究了生长年份对生长在同一地块上的五个测试品种的化学成分的影响，并注意到年份之间存在相当大的差异。获得的实验数据未显示主要成分含量变化的显着年际趋势。我们的结果使我们能够深入表征新品种并评估其油在工业中的可能用途，或指定它们用于未来的选择性育种。