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Antibacterial effect of some benzopyrone derivatives.

机译:一些苯并吡喃酮衍生物的抗菌作用。

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The Schiff base derivatives of benzopyran-4-one are characterized by imine groups which have biological activities such as antimicrobial, antifungal and antitumoral. The aim of this study was therefore to evaluate the toxicity of Schiff bases towards bacterial cells. Escherichia coli as Gram-negative bacteria and Staphylococcus capitis as Gram-positive bacteria were exposed to different concentrations of Schiff bases. For assessment of toxicity a 96-well turbidimetric procedure, capable of testing the antimicrobial properties on a single microplate, was used. Analysis of the growth curves showed that the antibacterial effect of these Schiff bases on Gram-negative bacteria was higher than that on Gram-positive. Furthermore the presence of hydroxylic groups is correlated with an increased antibacterial effect.
机译:苯并吡喃-4-on的席夫基衍生物的特征在于亚胺基团,其具有抗微生物,抗真菌和抗肿瘤等生物活性。 因此,本研究的目的是评估Schiff碱对细菌细胞的毒性。 大肠杆菌作为革兰氏阴性细菌和金葡萄球菌皮炎,因为革兰氏阳性细菌暴露于不同浓度的Schiff碱。 对于毒性评估,使用能够在单个微孔板上测试抗微生物性质的96孔浊度序列。 对生长曲线的分析表明,这些Schiff碱对革兰氏阴性细菌的抗菌作用高于革兰阳性的抗菌作用。 此外,羟基的存在与增加的抗菌作用相关。

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