School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China.
Department of Chemical Engineering, Hawassa University Institute of Technology, Hawassa P.O. Box 05, Ethiopia.
Molecules. 2019 Jan 18;24(2):342. doi: 10.3390/molecules24020342.
The essential oil from , a traditional herb of Ethiopia, has been studied, including the chemical composition and antimicrobial activity. The difference between four samples (P-1⁻P-4), which differed in gender or location, has also been analyzed. The essential oils were obtained by steam distillation, while the aromas were extracted by head space solid-phase microextraction (HS-SPME) and both were analyzed by gas chromatography- mass spectrometry (GC-MS). The oils' antimicrobial activities were evaluated by the microdilution method against , , and . Ninety one components, representing 88.37 to 94.01% of the aromas, were identified. The compositions of the aromas of four samples are mainly dominated by aldehydes and ketones: 2-nonanone (1.80⁻30.80%), benzaldehyde (4.99⁻25.99%), and sulcatone (2.34⁻5.87%). Sixty components representing 64.61 to 69.64% of the oils were identified, and phytone (3.04⁻21.23%), phytol (4.11⁻26.29%) and palmitic acid (1.49⁻23.87%) are the major compounds. No obvious antimicrobial activity was observed for all the four essential oils.
来自埃塞俄比亚传统草药的精油已被研究，包括化学成分和抗菌活性。还分析了四个样本（P-1⁻P-4）之间的差异，这些样本在性别或位置上有所不同。精油通过水蒸气蒸馏获得，香气通过顶空固相微萃取（HS-SPME）提取，并通过气相色谱-质谱联用（GC-MS）进行分析。通过微量稀释法评估了油对、、和的抗菌活性。鉴定出 91 种成分，占香气的 88.37%至 94.01%。四个样本的香气组成主要由醛和酮主导：2-壬酮（1.80⁻30.80%）、苯甲醛（4.99⁻25.99%）和 sulcatone（2.34⁻5.87%）。鉴定出 60 种成分，占油的 64.61%至 69.64%，主要化合物为植物酮（3.04⁻21.23%）、叶绿醇（4.11⁻26.29%）和棕榈酸（1.49⁻23.87%）。所有四种精油均未显示出明显的抗菌活性。
