科研之友
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摘要
The use of medicinal plants is well known and modern science investigates the scientific bases for the effects of numerous plant extracts against a great variety of diseases. Therefore, the aim of this study was to explore the antibacterial activity of the leaves from two Romanian indigenous species: European beech (Fagus sylvatica L.) and walnut (Juglans regia L.). The leaves were dried, then grinded and polyphenols were extracted using ethanol 70%. Afterwards, polyphenols and flavonoids were assayed and identified accurately by HPTLC. Antimicrobial activity of the extracts was tested against several pathogenic bacteria using the agar diffusion method and minimum inhibitory concentration determination. Our results showed a better activity against Gram positive bacteria, and the most susceptible bacterial strain was Staphylococcus epidermidis.
- 出版日期2018-6
