| 香椿嫩芽和老叶萃取物抗菌活性的比较研究 |
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| 引用本文： | 欧阳杰,武彦文,卢晓蕊.香椿嫩芽和老叶萃取物抗菌活性的比较研究[J].天然产物研究与开发,2008,20(3). |
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| 作者姓名： | 欧阳杰 武彦文 卢晓蕊 |
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| 作者单位： | 1. 北京林业大学生物科学与技术学院食品科学与工程系,北京,100083
2. 北京市理化分析测试中心,北京,100089 |
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| 摘 要： | 采用琼脂扩散法对香椿嫩芽和老叶萃取物的氯仿、乙酸乙酯和正丁醇萃取部分的抗菌活性进行了研究.嫩芽萃取物的抗菌活性明显高于老叶萃取物,其中嫩芽萃取物的乙酸乙酯部分表现出最强的抗菌活性,其最小抑菌浓度(MIC)为1.3 mg/mL.实验结果表明,香椿叶中的抑菌物质随着生长时间的延长而逐渐降低.
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| 关 键 词： | 香椿 嫩芽 老叶 提取物 抗菌活性 Toona sincnsis young leaf old leaf extract anti-bacterial activity 香椿 嫩芽 萃取物 抗菌活性 比较 研究 sinensis Leaves Young and Old Extracts Activities growth period results active compounds ethyl acetate fractions leaf significant |
Comparison of Anti-bacterial Activities of the Extracts from Young and Old Leaves of Toona sinensis |
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| OUYANG Jie,WU Yan-wen,LU Xiao-rui.Comparison of Anti-bacterial Activities of the Extracts from Young and Old Leaves of Toona sinensis[J].Natural Product Research and Development,2008,20(3). |
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| Authors: | OUYANG Jie WU Yan-wen LU Xiao-rui |
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| Abstract: | Chloroform,ethyl acetate and butanol fractions of 75% ethanol extract from young and old leaves of Toona sincnsis, were tested for their anti-bacterial activities using the antimierobial disk assay. The extracts from young leaves showed more remarkable antibacterial activities than those from old leaves, and the ethyl acetate fraction of young leaf ex- tract showed the most significant antibacterial activity with a MIC of 1.3 mg/mL. The results suggested that the active compounds in T. sincnsis decreased along with its growth period. |
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| Keywords: | Toona sincnsis young leaf old leaf extract anti-bacterial activity |
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