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首页> 外文期刊>International Journal of Basic and Applied Sciences >Phytochemical screening and antibacterial activity of rosmarinus officinalis l. against Escherichia coli. local isolates
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Phytochemical screening and antibacterial activity of rosmarinus officinalis l. against Escherichia coli. local isolates

机译：迷迭香的植物化学筛选和抗菌活性。抗大肠杆菌。本地隔离

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摘要

Rosmarinus officinalis is a medicinal plant which belongs to family Lamiaceae. It is an evergreen bush. It was analyzed for its phytochemical constitution and antibacterial activity. For this purpose flowers, leaves and stem of aqueous and methanolic extracts were used. The tests of phytochemical screening showed that flavonoids, terpenoids, reducing sugar and saponins were present in different concentrations, while tannin was absent in all parts of plant. The antibacterial activity was determined against E. coli with different concentrations (i-e 0.5gm, 1gm and 1.5gm) kept for 24 hours and 48 hours duration. The results showed that the highest mean inhibition zone was observed in the methanolic extracts of leaves 1.5gm kept for 48 hours (28.6 ± 4.261mm).In the stem the methanolic extracts showed the highest inhibition zone with the concentration of 1.5gm (13.4 ± 1.624mm) kept for 24 hours. In the flower the highest inhibition zone in methanolic extracts was observed in 1gm (25.4 ± 2.416mm) kept for 48 hours. In the aqueous extracts the highest inhibition zone values were (17.6 ± 4.029mm, 15.8 ± 2.993mm, 14.4 ± 2.33mm) for stem, flower and leaves respectively.
机译：迷迭香是属于唇形科的药用植物。这是一个常绿的灌木丛。分析了它的植物化学组成和抗菌活性。为此，使用了水和甲醇提取物的花，叶和茎。植物化学筛选试验表明，植物各部位均不存在黄酮类化合物，萜类化合物，还原糖和皂苷，而丹宁酸含量较低。测定对大肠杆菌的抗菌活性，使其在24小时和48小时内保持不同的浓度（即0.5gm，1gm和1.5gm）。结果表明，在1.5 g的甲醇提取物中，保持48小时（28.6±4.261mm）的平均抑制区最高，茎中的甲醇提取物表现出最高的抑制区，浓度为1.5 gm（13.4±）。 1.624毫米）保持24小时。在花朵中，在1 gm（25.4±2.416mm）的环境中放置48小时，观察到甲醇提取物中的最高抑制区。在水提取物中，茎，花和叶的最高抑制区分别为（17.6±4.029mm，15.8±2.993mm，14.4±2.33mm）。

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