BACKGROUND: The chemical composition of the essential oil obtained by hydrodistillation from the dried fruits of Amomum tsao-ko was analysed by gas chromatography/mass spectroscopy (GC/MS). The antimicrobial activity of the oil was evaluated against 16 micro-organisms using agar disc diffusion and broth microdilution methods.RESULTS: Seventy-three compounds, constituting about 97.56% of the total oil, were identified. The main components were 1,8-cineole (45.24%), s-propylbenzaldehyde (6.04%), geraniol (5.11%), geranial (4.52%), l-terpineol (3.59%) and l-phellandrene (3.07%). The essential oil showed a broad spectrum of antimicrobial activity against all the tested micro-organisms, including Gram-positive and Gram-negative bacteria, and fungi. The oil exerted the strongest bactericidal activity against Staphylococcus aureus CCTCC AB91118, with minimum inhibitory and bactericidal concentrations of 0.20 g Lp#.CONCLUSION: Our study suggests that the Amomum tsao-ko essential oil could be one of new medicinal resources for antibacterial and antifungal agents. Copyright
展开▼
机译：背景：通过气相色谱/质谱法（GC / MS）分析了从砂仁砂仁干果中加氢蒸馏得到的精油的化学成分。使用琼脂圆盘扩散法和肉汤微稀释法评价了该油对16种微生物的抗菌活性。结果：鉴定出73种化合物，约占总油的97.56％。主要成分为1,8-桉树脑（45.24％），仲丙基苯甲醛（6.04％），香叶醇（5.11％），香叶醛（4.52％），L-松油醇（3.59％）和L-水芹烯（3.07％）。精油对所有测试的微生物（包括革兰氏阳性和革兰氏阴性细菌以及真菌）均具有广泛的抗菌活性。该油对金黄色葡萄球菌CCTCC AB91118具有最强的杀菌活性，最低抑菌和杀菌浓度为0.20 g Lp＃。结论：我们的研究表明，砂仁砂子精油可能是抗菌和抗真菌剂的新药材之一。版权
展开▼
