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International journal of Advanced Biological and Biomedical Research، جلد ۸، شماره ۴، صفحات ۴۱۹-۴۲۸
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Evaluation of Antimicrobial and Antioxidant Activities of Psidium guajava L growing in Libya |
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| چکیده انگلیسی مقاله |
The aim of this study was to evaluate quantitatively the antimicrobial and antioxidant potentials of the leaves extracts of Guava (Psidium guajava Linn.),belonging to the Myrtaceae family. The plant samples were collected from Tajoura eastern part of Tripoli in Libya. Methanol and water were used as solvents in the extraction. The phytochemical screening showed that the ethanolic and aqueous extracts had tannins, flavonoids, alkaloids, saponins, terpenes in varying proportions while alkaloid was the only exclusion in the methanolic extract.
The water, methanol crude extracts as well as flavonoids extract were effective against both Gram- positive and Gram-negative bacteria: Buscillis subtils , Staphylococcus aureus, Escherichia coli and Salmonella typhi.
The minimum inhibitory concentration MIC for flavonoids extract was 2.5 mg/ml .It was also found that both extracts (aqueous and methanolic) of the Guajava leaves showed reasonably high content of polyphenols.
These results suggest that Psidium guajava L. is not only reliable natural source of antimicrobials but also potential sources of phenolic antioxidants and hence could be nominated for further intensive studies |
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| کلیدواژه‌های انگلیسی مقاله |
Medicinal plants,
Psidium guajava,
Phytochemical,
Antimicrobial |
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| نویسندگان مقاله |
Mahboba Naili |
Chemistry Department, Faculty of Science, University of Tripoli, Tripoli, Libya.
Asma Errayes |
Chemistry Department, Faculty of Science, University of Tripoli, Tripoli, Libya
Rabia Alghazeer |
Chemistry Department, Faculty of Science, University of Tripoli, Tripoli, Libya
Wanisa Abdussalam- Mohammed |
2Chemistry Department, Faculty of Science, Sebha University, Sebha, Libya
Moftah Darwish |
Chemistry Department, Faculty of Science, University of Tripoli, Tripoli, Libya
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| نشانی اینترنتی |
https://www.ijabbr.com/article_40572_c6930ad70b822b1c9a031a16dcb833ac.pdf |
| فایل مقاله |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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