摘要
以碱提取、酸沉淀的方法从樟树叶片中分离得到一种棕黑色粉末,该提取物主要为有色化合物A和B的混合物,化合物A的含量成倍高于化合物B;经silicagel、Al_2O_3及sephadexG-25柱层析分离纯化等步骤,得到纯化的红棕色化合物A,经PAGE、PLC及TLC检测均为单一谱带或单一斑点;该化合物熔点为280.29℃,λ_(max) ̄(KOH)为213nm,E1cm1%为342.5,肩峰为257nm,pI为3.7,对大肠杆菌、金黄葡萄球菌、巨大芽孢杆菌、枯草杆菌及毛霉有较强的抑菌活性。
From the alkaline extract of leaves of Cinnamomum camphora, a dark red compound A has been isolated and purified by methods of silica gel, Al2O3 and sephadex G-25 chromatographys. The compound A with mp. 280.29℃,λ213 nm, E 342.5, shoulder peck 257 nm, and pI 3.7 has effective inhibitory activities against Escherichia coli, Staphylococcus aureaus, Bacillus megatherium, Bacillus subtilis and Mucor sp.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1996年第4期333-337,共5页
Journal of Huazhong Agricultural University
基金
国家民委资助
关键词
樟树
叶片
抑菌物
抗菌活性
分离
纯化
camphortree leaves, antibiotic compounds, antibiotic activity, isolation, purification