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Chemical Components and Antibacterial Activity of the Essential Oil of Six Pyrrosia Species
Chemistry & Biodiversity ( IF 2.9 ) Pub Date : 2020-09-14 , DOI: 10.1002/cbdv.202000526
Ya Fan 1 , Haiyang Feng 1 , Li Liu 1 , Yingying Zhang 2 , Xiaowei Xin 3 , Demin Gao 1
Affiliation  

The present study was aimed at analyzing the chemical components of the essential oil from six Pyrrosia species by GC/MS and evaluating their in vitro antibacterial activities. Seventy volatile compounds were identified in the essential oil of six Pyrrosia samples. The identified volatile components were divided into following nine categories: aldehydes, terpenoids, fatty acids, ketones, furans, hydrocarbons, alcohols, esters, and phenols. The major components of the essential oil were 2,4‐pentadienal, phytol and nonanal. The antimicrobial assays showed that the essential oils from Pyrrosia samples exhibited a broad‐spectrum antimicrobial activity. However, P. lingua had the highest antibacterial activity against Staphylococcus aureus (ATCC 25923) with a minimum inhibitory concentration (MIC) of 2.5 μL/mL. This article is the first report of the chemical components and antimicrobial activity of the essential oil from six Pyrrosia species, which will lay the foundation for developing medicinal resources from Pyrrosia fronds.

中文翻译:

六种火龙果精油的化学成分及抗菌活性

本研究旨在通过 GC/MS 分析来自 6 种 Pyrrosia 物种的精油的化学成分并评估它们的体外抗菌活性。在 6 个 Pyrrosia 样品的精油中鉴定出 70 种挥发性化合物。鉴定出的挥发性成分分为以下九类:醛类、萜类、脂肪酸类、酮类、呋喃类、烃类、醇类、酯类和酚类。精油的主要成分是2,4-戊二烯醛、植醇和壬醛。抗菌试验表明,来自 Pyrrosia 样品的精油表现出广谱抗菌活性。然而,P. lingua 对金黄色葡萄球菌 (ATCC 25923) 的抗菌活性最高,最低抑菌浓度 (MIC) 为 2.5 μL/mL。
更新日期:2020-09-14
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