Abstract In the present work the composition of biogenic volatile organic compounds (BVOCs) and the essential oil (EO) of Helichrysum araxinum Takht. ex Kirp. aerial parts, together with the antimicrobial activity, were investigated. The results showed the prevalence of sesquiterpene hydrocarbons in both spontaneous emissions as well as in the EO. The main compounds of BVOCs were γ-curcumene (10.7%), γ-muurolene (9.2%), and β-selinene (8.5%). This latter constituent also showed a similar amount in the EO and represented the most abundant compounds together with α-selinene (8.0%). It is Interesting to note the same percentage of monoterpene hydrocarbons (MHs) in both the aroma profile and the EO (18.0%) with the same most abundant compounds: β-pinene (6.3% in BVOCs vs. 5.1% in EO, respectively) and limonene (4.5% in VOCs vs. 4.9% in EO, respectively). With regard to the antimycotic activity, the EO showed to be inactive against the tested strains, while a moderate antibacterial activity was shown against Staphylococcus isolates.

中文翻译：

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蜡菊属植物蜡菊属 Takht。前基尔普。在意大利种植：挥发性成分和体外抗菌活性

摘要 在目前的工作中，蜡菊属植物的生物挥发性有机化合物 (BVOC) 和精油 (EO) 的组成。前基尔普。研究了地上部分以及抗菌活性。结果显示倍半萜烃在自发排放和 EO 中的普遍存在。BVOCs的主要化合物为γ-姜黄烯（10.7%）、γ-二烯二烯（9.2%）和β-硒烯（8.5%）。后一种成分在 EO 中也显示出相似的含量，并且与 α-硒烯 (8.0%) 一起代表了最丰富的化合物。有趣的是，香气特征和 EO 中单萜烃 (MH) 的百分比相同 (18.0%)，具有相同的最丰富的化合物：β-蒎烯（BVOC 中分别为 6.3%，EO 中为 5.1%）和柠檬烯（VOC 中 4.5% 与 EO 中的 4.9%，分别）。在抗真菌活性方面，EO 显示对测试菌株无活性，而对葡萄球菌分离株显示出中等抗菌活性。