Yuan Juanjuan, Gan Tian, Liu Yingtian, Gao Hui, Xu Weifeng, Zhang Tao, Tan Rui, Cai Zhenghong, Jiang Hezhong
a School of Life Science and Engineering , Southwest Jiaotong University , Chengdu , P. R. China.
b Department of Oncology , Chengdu Military General Hospital , Chengdu , P. R. China.
Nat Prod Res. 2018 Jun;32(12):1451-1454. doi: 10.1080/14786419.2017.1346644. Epub 2017 Jul 3.
This study represents the first report on the chemical composition and antimicrobial activity of the essential oil from the branches of Jacaranda cuspidifolia Mart. Thirty-three compounds were identified by Gas Chromatography-Mass Spectrometry (GC-MS) and the major constituents of the essential oil were Palmitic acid (31.36%), (Z) - 9,17-Octadecadienal (12.06%), Ethyl palmitate (3.81%), Perhydrofarnesyl acetone (2.07%), γ-Maaliene (1.88%), and Cedro (1.42%) and 9,12-Octadecadienoic acid ethyl ester (1.42%). The in vitro antimicrobial activities of the essential oil were evaluated by the disc diffusion method, and the inhibition zones against Escherichia coli, Staphylococcus aureus and Candida albicans were 7.10, 8.20 and 7.25 mm, respectively. The oil showed moderate activities against E. coli, S. aureus and C. albicans with minimum inhibition concentration (MIC) values of 17.3 mg/mL, 12.9 mg/mL and 16.0 mg/mL, respectively.
本研究首次报道了蓝花楹（Jacaranda cuspidifolia Mart.）枝条精油的化学成分和抗菌活性。通过气相色谱 - 质谱联用（GC - MS）鉴定出33种化合物，该精油的主要成分是棕榈酸（31.36%）、（Z）-9,17 - 十八碳二烯醛（12.06%）、棕榈酸乙酯（3.81%）、全氢法呢基丙酮（2.07%）、γ - 马勒烯（1.88%）、雪松烯（1.42%）和9,12 - 十八碳二烯酸乙酯（1.42%）。采用纸片扩散法评估了该精油的体外抗菌活性，其对大肠杆菌、金黄色葡萄球菌和白色念珠菌的抑菌圈直径分别为7.10、8.20和7.25毫米。该精油对大肠杆菌、金黄色葡萄球菌和白色念珠菌表现出中等活性，其最低抑菌浓度（MIC）值分别为17.3毫克/毫升、12.9毫克/毫升和16.0毫克/毫升。
