Su Yu-Chang, Ho Chen-Lung
Nat Prod Commun. 2016 Apr;11(4):515-8.
The essential oils of leaves, fruits, flowers, stems and twigs of Litsea cubeba were extracted by hydrodistillation. A total of 53, 50, 76, 94 and 90 compounds were identified from the leaf, fruit, flower, stem and twig oils, respectively, and their yields were 13.9 ± 0.09, 4.0 ± 0.03, 10.4 ± 0.05, 0.09 ± 0.01 and 0.4 ± 0.02 mL/100 g of the oven-dried (o.d.) materials, respectively. The main component in the leaf, flower and twig oils was 1,8-cineole, whereas in the fruit oil it was citral, and in the stem oil limonene, citronellal, and citronellol. When tested for their antibacterial activities using the paper disc diffusion method, oils from all parts showed excellent activities, particularly the fruit oil. When the oils were infused onto filter paper and tested for their antimicrobial paper capability according to the JIS L 1902 method, the fruit oil exhibited excellent antimicrobial activities. Citral was deemed the main cause of the antimicrobial activity. With the multiplicity of contagious diseases and their prevalence in hospitals, these essential oils present a potentially good choice as antibacterial agents. We think that the essential oils of this species are capable of multipurpose applications.
采用水蒸馏法提取了山苍子叶、果实、花、茎和嫩枝的挥发油。从叶油、果油、花油、茎油和嫩枝油中分别鉴定出53、50、76、94和90种化合物，其得率分别为13.9±0.09、4.0±0.03、10.4±0.05、0.09±0.01和0.4±0.02 mL/100 g烘干（o.d.）材料。叶油、花油和嫩枝油中的主要成分是1,8-桉叶素，而果油中的主要成分是柠檬醛，茎油中的主要成分是柠檬烯、香茅醛和香茅醇。采用纸片扩散法测试其抗菌活性时，各部位的挥发油均表现出优异的活性，尤其是果油。当将这些挥发油浸渍在滤纸上并按照JIS L 1902方法测试其抗菌纸性能时，果油表现出优异的抗菌活性。柠檬醛被认为是抗菌活性的主要原因。鉴于医院中传染病种类繁多且普遍存在，这些挥发油作为抗菌剂具有潜在的良好选择。我们认为该物种的挥发油具有多种用途。
