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首页> 外文期刊>Biocontrol Science >Identification of kaempferol from the leaves of Diospyros kaki and its antimicrobial activity against Streptococcus mutans
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Identification of kaempferol from the leaves of Diospyros kaki and its antimicrobial activity against Streptococcus mutans

机译：柿叶中山萘酚的鉴定及其对变形链球菌的抗菌活性

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摘要

This paper describes the isolation and identification of an antimicrobial compound against Streptococcus mutans from the leaves of Diospyros kaki. After repeated chromatography of the weakly acidic fraction of acetone extracts, an antimicrobial compound against S. mutans was isolated. The chemical structure of the active compound was elucidated by spectroscopic methods, and identified as kaempferol. Kaempferol is an aglycone of astragalin (kaempferol 3- O- #beta#-D-glucopyranoside) which has been isolated from the leaves of D. kaki. The minimum inhibitory concentrations of kaempferol against Streptococcus mutans, Escherichia coil, Bacillus subtilis, and Staphylococcus aureus were estimated.
机译：本文描述了从柿柿叶中分离和鉴定抗变形链球菌的抗菌化合物。反复对丙酮提取物的弱酸性部分进行色谱分离后，分离出一种抗变形链球菌的抗菌化合物。通过光谱方法阐明了活性化合物的化学结构，并鉴定为山奈酚。山emp酚是黄芪甲苷（山isolated酚3-O-β-D-吡喃葡萄糖苷）的糖苷配基，已从D. kaki的叶子中分离出来。估计了山fer酚对变形链球菌，大肠杆菌，枯草芽孢杆菌和金黄色葡萄球菌的最低抑制浓度。

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