Three mature Eucalyptus globulus trees with 40 years of age were studied at three height levels (0%, 35%, and 60% of total tree height) and at three radial regions (sapwood, inner and outer heartwood). The composition of lipophilic extracts was evaluated and an extensive list of 202 compounds was reported for the first time. The fatty acids were the major chemical family, representing 40.8% of the total compounds, followed by phytosterols (19.0%), aromatics (10.5%) and triterpenes (10.4%). Saturated fatty acids accounted for 74.2% of total compounds (C16:0, C24:0 and C26:0 were predominant), β-Sitosterol and stigmastanol were the main sterols (80 and 7% respectively), while aromatics were mainly represented by syringic acid, 4-hydroxy-3,5-dimethoxybenzaldehyde, vanillic acid, and vanillin. The main triterpenes were asiatic and arjunolic acids.

中文翻译：

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蓝桉木材亲脂性提取物化学多样性的广泛研究

在三个高度水平（总树高的 0%、35% 和 60%）和三个径向区域（边材、内心材和外心材）对三棵 40 岁的成熟蓝桉树进行了研究。评估了亲脂性提取物的组成，并首次报告了 202 种化合物的广泛列表。脂肪酸是主要的化学家族，占总化合物的 40.8%，其次是植物甾醇 (19.0%)、芳烃 (10.5%) 和三萜 (10.4%)。饱和脂肪酸占总化合物的 74.2%（以 C16:0、C24:0 和 C26:0 为主），β-谷甾醇和豆甾醇是主要甾醇（分别为 80% 和 7%），而芳烃主要以丁香为代表。酸、4-羟基-3,5-二甲氧基苯甲醛、香草酸和香草醛。主要的三萜是积雪草酸和阿朱酚酸。