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赤桉叶和果实精油的化学成分及生物活性

Chemical composition and biological activities of leaf and fruit essential oils from Eucalyptus camaldulensis.

作者信息

Dogan Gulden, Kara Nazan, Bagci Eyup, Gur Seher

机构信息

.

出版信息

Z Naturforsch C J Biosci. 2017 Oct 26;72(11-12):483-489. doi: 10.1515/znc-2016-0033.

DOI:10.1515/znc-2016-0033
PMID:28640755
Abstract

The chemical composition of the essential oils from the leaves and fruit of Eucalyptus camaldulensis grown in Mersin, Turkey was analyzed using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) techniques. The biological activities (antibacterial and antifungal) were examined using the agar well diffusion method. The main leaf oil constituents were p-cymene (42.1%), eucalyptol (1,8-cineole) (14.1%), α-pinene (12.7%) and α-terpinol (10.7%). The main constituents of the fruit oil were eucalyptol (1,8-cineole) (34.5%), p-cymene (30.0%), α-terpinol (15.1%) and α-pinene (9.0%). Our results showed that both types of oils are rich in terms of monoterpene hydrocarbons and oxygenated monoterpenes. The leaf and fruit essential oils of E. camaldulensis significantly inhibited the growth of Gram-positive (Staphylococcus aureus and Bacillus subtilis) and Gram-negative (Escherichia coli and Streptococcus sp.) bacteria (p<0.05). The oils also showed fungicidal activity against Candida tropicalis and C. globrata. Leaf essential oils showed more activity than fruit essential oils, probably due to the higher p-cymene concentration in leaves.

摘要

采用气相色谱(GC)和气相色谱 - 质谱联用(GC - MS)技术,对生长在土耳其梅尔辛的赤桉树叶和果实中的挥发油化学成分进行了分析。采用琼脂扩散法检测了其生物活性(抗菌和抗真菌)。叶油的主要成分是对伞花烃(42.1%)、桉叶油素(1,8 - 桉叶素)(14.1%)、α - 蒎烯(12.7%)和α - 萜品醇(10.7%)。果油的主要成分是桉叶油素(1,8 - 桉叶素)(34.5%)、对伞花烃(30.0%)、α - 萜品醇(15.1%)和α - 蒎烯(9.0%)。我们的结果表明,两种类型的油在单萜烃类和含氧单萜类方面都很丰富。赤桉的叶和果实挥发油显著抑制革兰氏阳性菌(金黄色葡萄球菌和枯草芽孢杆菌)和革兰氏阴性菌(大肠杆菌和链球菌属)的生长(p<0.05)。这些油还对热带假丝酵母和光滑假丝酵母表现出杀菌活性。叶挥发油比果实挥发油表现出更强的活性,这可能是由于叶片中对伞花烃浓度较高所致。

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