Chemical analysis of essential oils of Eupatorium adenophorum and their antimicrobial, antioxidant and phytotoxic properties
Chemical analysis of essential oils of Eupatorium adenophorum and their antimicrobial, antioxidant and phytotoxic properties
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DOI：
10.1007/s10340-013-0542-6
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发表时间：
2014-06-01
影响因子：
4.8
通讯作者：
Kundu, Aditi
中科院分区：
文献类型：
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作者：
Ahluwalia, Vivek;Sisodia, Ritu;Kundu, Aditi
研究了紫茎泽兰(菊科)花序和根部精油的抗菌、抗植物毒性和抗氧化活性。经GC-MS分析，花序挥发油主要成分为倍半萜(55.9%)，主要成分为伽马-杜松烯(18.4%)、木犀草烯(11.7%)、3-乙酰氧基-4，7(11)-二烯-8-酮(7.4%)和乙酸龙脑酯(6.3%)。根部挥发油中倍半萜(34.3%)和单萜(32.5%)的含量几乎相等，主要成分为E，E-杜松烯(19.9%)、γ-木犀草烯(10.1%)、异丁香酚(7.5%)、β-杜松烯(7.0%)和α-水仙烯-8-醇(5.9%)。两种精油对5种植物病原真菌均表现出明显的抗真菌活性。花序油对肺炎克雷伯菌有较高的抑菌活性，而根油对金黄色葡萄球菌的抑菌效果较好。不同浓度的挥发油均能抑制或延缓杂草小叶蝴蝶兰的萌发和幼苗生长，且呈剂量依赖关系。DPPH实验表明，精油还具有显著的清除自由基活性。
Essential oils from inflorescences and roots of Eupatorium adenophorum Spreng (Asteraceae) have been investigated for their antimicrobial, phytotoxic and antioxidant activities. Based on GC-MS, the oil from inflorescences is dominated by sesquiterpenes (55.9 %) with gamma-cadinene (18.4 %), gamma-muurolene (11.7 %), 3-acetoxyamorpha-4,7(11)-diene-8-one (7.4 %) and bornyl acetate (6.3 %) as the major constituents. The oil obtained from the roots contained both sesquiterpenes (34.3 %) and monoterpenes (32.5 %) in almost equal proportions with E,E-cosmene (19.9 %), gamma-muurolene (10.1 %), isothymol (7.5 %), beta-cadinene (7.0 %) and alpha-phellandren-8-ol (5.9 %) as the major constituents. Both oils exhibited significant antifungal activity against five phytopathogenic fungi. The inflorescence oil showed higher antibacterial activity against Klebsiella pneumoniae, while the root oil was more effective against Staphylococcus aureus. The oils strongly inhibited or delayed germination and seedling growth of the weed Phalaris minor in a dose-dependent manner. As evidenced by a DPPH assay, the essential oils also exhibited significant free radical scavenging activity.