a Department of Horticultural Science , Faculty of Agricultural Science and Natural Resources, Science and Research Branch, Islamic Azad University , Tehran , Iran.
Nat Prod Res. 2015 Feb;29(3):277-80. doi: 10.1080/14786419.2014.951357. Epub 2014 Aug 26.
This study reports the chemical composition, antimicrobial activity and antioxidant properties of Psammogeton canescens essential oil (EO) and its main compounds. The EO was obtained from the aerial parts of P. canescens by hydrodistillation and analysed by using GC/MS. The main constituent was β-bisabolene (25%), followed by α-pinene (20%), apiole (15.34%), γ-terpinene (7.34%), p-cymene (5.35%), β-pinene (5.41%), camphene (5.12%), dill apiole (5%), myrcene (4.54%), colchicine (0.56), sylvestrene (0.56%), β-caryophyllene (0.45%), caryophyllene oxide (0.43%), (Z)-β-farnesene (0.32%), cembrene (0.21%), folic acid (0.21%), germacrene D (0.14) and β-sesquiphellandrene (0.13). β-Bisabolene exhibited strong antioxidant activity (14 ± 0.8 μg/mL). The EO of P. canescens was particularly active against Candida albicans and Escherichia coli, with the lowest minimum inhibitory concentration and minimum bactericidal/fungicidal concentration values. In conclusion, these results support the use of the EO and its main compounds for their antioxidant properties and antimicrobial activity.
本研究报告了 Psammogeton canescens 精油（EO）及其主要化合物的化学成分、抗菌活性和抗氧化性能。EO 通过水蒸馏从 P. canescens 的地上部分获得，并通过 GC/MS 进行分析。主要成分为 β-倍半萜烯（25%），其次为 α-蒎烯（20%）、川陈皮素（15.34%）、γ-萜品烯（7.34%）、对伞花烃（5.35%）、β-蒎烯（5.41%）、莰烯（5.12%）、大根香叶烯（5%）、月桂烯（4.54%）、秋水仙碱（0.56%）、雪松烯（0.56%）、β-石竹烯（0.45%）、石竹烯氧化物（0.43%）、（Z）-β-法呢烯（0.32%）、柏木烯（0.21%）、叶酸（0.21%）、大根香叶二烯 D（0.14%）和 β-倍半水芹烯（0.13%）。β-倍半萜烯表现出很强的抗氧化活性（14±0.8μg/mL）。P. canescens 的 EO 对白色念珠菌和大肠杆菌特别有效，最低抑菌浓度和最低杀菌/抑菌浓度值最低。综上所述，这些结果支持使用 EO 及其主要化合物的抗氧化和抗菌活性。
