苦槛蓝叶的黄酮类成分及其荔枝霜疫霉抑制活性研究  

Flavonoids from Leaves of Myoporum bontioides and Their Antimicrobial Activities against Peronophythora litchi

作　　者：叶慧娟 谷文祥 YE Huijuan;GU Wenxiang(Zhaoqing Institute for Food Control,Zhaoqing 526000,Guangdong,China;College of Materials and Energy,South China Agricultural University,Guangzhou 510642,China)

机构地区：[1]肇庆市食品检验所,广东肇庆526000 [2]华南农业大学材料与能源学院,广州510642

出　　处：《热带亚热带植物学报》2022年第3期434-440,共7页Journal of Tropical and Subtropical Botany

摘　　要：为了解苦槛蓝(Myoporum bontioides)的化学成分,采用色谱分离法从叶中分离得到11个化合物,分别鉴定为:5,7,3’-三羟基-4’-甲氧基黄酮(1)、3,5,7,4’-四羟基-3’-甲氧基黄酮(2)、5,7,4’-三羟基-3’,5’-二甲氧基黄酮(3)、木犀草素(4)、山奈酚(5)、鼠李黄素(6)、5,7-二羟基二氢黄酮(7)、7,4’-二羟基二氢黄酮(8)、5,7,3’,4’-四羟基二氢黄酮(9)、5-O-乙酰基-3,7,3’,4’-四羟基二氢黄酮(10)和7-甲氧基香橙素(11)。除化合物4、7、11之外,其他化合物均为首次从苦槛蓝叶中分离得到。菌丝生长速率法测试表明化合物4、7~9和11对荔枝霜疫霉菌具有较好的抑菌活性。In order to study the chemical compositions in Myoporum bontioides, eleven compounds were isolated from leaves by chromatographic separation methods. On the basis of spectral data, they were identified as 5,7,3’-trishydroxy-4’-methoxyflavone(1), 3,5,7,4’-tetrahydroxy-3’-methoxyflavone(2), 5,7,4’-trihydroxy-3’,5’-dimethoxyflavone(3), 3′,4′,5,7-tetrahydroxyflavanone(4), kaempferol(5), rhamnetin(6), 5,7-dihydroxyflavanone(7), 7,4′-dihydroxyflavanone(8), 5,7,3’,4’-trihydroxyflavanone(9) 5-acetyloxy-3,7,3’,4’-tetrahydroxyflavanone(10) and 7-methoxyaromadenrin(11). All compounds were obtained from M. bontioides for the first time except compounds 4, 7 and 11. The compounds 4, 7-9 and 11 had strong antifungal activity against Peronophythora litchi.

关 键 词：苦槛蓝 叶 黄酮类化合物 荔枝霜疫霉 

分 类 号：TQ28[化学工程—有机化工]