文献类型： 外文期刊

作者： Li, Zhi-Jian ¹ ; Njateng, Guy S. S. ² ; He, Wen-Jia ⁴ ; Zhang, Hong-Xia ² ; Gu, Jian-Long ² ; Chen, Shan-Na ¹ ; Du, Zh ¹ ;

作者机构： 1.Yunnan Univ, Sch Life Sci, Kunming 650091, Peoples R China

2.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources West Ch, Kunming 650201, Peoples R China

3.Univ Dschang, Fac Sci, Lab Microbiol & Antimicrobial Subst, Dschang, Cameroon

4.Yunnan Acad Agr Sci, Alpine Econ Plant Inst, Lijiang 674100, Yunnan, Peoples R China

关键词： Chemical;Composition;delavayi

期刊名称：CHEMISTRY & BIODIVERSITY （ 影响因子：2.408； 五年影响因子：2.351 ）

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收录情况： SCI

摘要： The essential oil obtained by hydrodistillation from the aerial parts of Aristolochia delavayi Franch. (Aristolochiaceae), a unique edible aromatic plant consumed by the Nakhi (Naxi) people in Yunnan, China, was investigated using GC/MS analysis. In total, 95 components, representing more than 95% of the oil composition, were identified, and the main constituents found were (E)-dec-2-enal (52.0%), (E)-dodec-2-enal (6.8%), dodecanal (3.35%), heptanal (2.88%), and decanal (2.63%). The essential oil showed strong inhibitory activity (96% reduction) of the production of bacterial volatile sulfide compounds (VSC) by Klebsiella pneumoniae, an effect that was comparable with that of the reference compound citral (91% reduction). Moreover, the antimicrobial activity of the essential oil and the isolated major compound against eight bacterial and six fungal strains were evaluated. The essential oil showed significant antibacterial activity against Providencia stuartii and Escherichia coli, with minimal inhibitory concentrations (MIC) ranging from 3.9 to 62.5 μg/ml. The oil also showed strong inhibitory activity against the fungal strains Trichophyton ajelloi, Trichophyton terrestre, Candida glabrata, Candida guilliermondii, and Cryptococcus neoformans, with MIC values ranging from 3.9 to 31.25 μg/ml, while (E)-dec-2-enal presented a lower antifungal activity than the essential oil.