The In vitro Evaluation of the Antimicrobial Activity of Quercus robur L. Methanolic and Aqueous Leaves’ Extracts, from the Algerian High Plateaus Against some Uropathogenic Microbial Strains (notice n° 782637)
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| fixed length control field | 05488cam a2200349 4500500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250123112809.0 |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | fre |
| 042 ## - AUTHENTICATION CODE | |
| Authentication code | dc |
| 100 10 - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Benyagoub, E. |
| Relator term | author |
| 245 00 - TITLE STATEMENT | |
| Title | The In vitro Evaluation of the Antimicrobial Activity of Quercus robur L. Methanolic and Aqueous Leaves’ Extracts, from the Algerian High Plateaus Against some Uropathogenic Microbial Strains |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Date of publication, distribution, etc. | 2020.<br/> |
| 500 ## - GENERAL NOTE | |
| General note | 81 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The medicinal value of the plants is due to their chemical components that bring a definite physiological action on the human body to prevent the diseases. In this work, we investigated the antimicrobial activity of leaves’ extracts of Quercus roburL., collected from the Algerian upper highlands, on ten bacterial strains and one fungal strain known to be pathogenic. First, we performed a qualitative phytochemical analysis, and second, antimicrobial activity tests performed by agar diffusion method (disc and well) with the determination of MIC by broth macro-dilution method. Given the results, it appears that obtained macerates of Quercus robur L. were rich in bioactive phytoconstituents such as alkaloids, anthraquinones, saponins, tannins, and other components. The yield of aqueous and methanolic macerates of leaves was 8.5 ± 1.41 and 22.4 ± 4.36%, respectively. The bacterial resistance was relatively important to several antibiotics, namely, ampicillin, amoxicillin + clavulanic acid for strains of Escherichia coli and Salmonella sp. However, Staphylococcus aureus strains were resistant to fusidic acid, penicillin, and oxacillin; while Enterococcus faecalis was resistant to fusidic acid, penicillin, oxacillin, and ticarcillin. The antibacterial activity of the macerates toward tested microbial strains showed that the aqueous and methanolic macerates of the leaves were proportional to the tested concentration and active not only against Gram-positive and Gram-negative bacteria but also on the fungal species Candida albicans. The estimated MIC for Escherichia coli, Enterococcus faecalis, and Staphylococcus aureus was in the order of 10 mg/mL, which seems more effective than toward Salmonella sp.,Klebsiella pneumoniae, Pseudomonas aeruginosa, and Candida albicans which were in the order of 30 mg/mL. These preliminary results confirm that the part of the studied plant had a very good antimicrobial activity that was proportional to the serial concentrations of the tested extracts. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | La valeur médicinale des plantes est due à leurs constituants chimiques qui apportent une action physiologique définie sur le corps humain pour prévenir les maladies. Pour cela, nous nous sommes intéressés dans ce travail à l'évaluation de l'activité antimicrobienne de quelques extraits des feuilles de Quercus robur L. sur dix souches bactériennes et une souche fongique réputées pathogènes. Dans la présente étude, nous avons effectué, d'une part, une analyse phytochimique qualitative et, d'autre part, l'évaluation de l'activité antimicrobienne par la méthode de diffusion sur Agar (disque et puits) avec détermination de la concentration minimale inhibitrice (CMI) par la méthode de macrodilution sur milieu liquide. Au vu des résultats obtenus, il ressort que les macérâts analysés de Quercus robur L. sont riches en phytoconstituants bioactifs. La révélation de ces composants par le biais de différents tests qualitatifs ont montré la présence de sept grands groupes chimiques. Le rendement des macérâts aqueux et méthanoliques pour les feuilles était de l'ordre de 8,5 ± 1,41 % et 22,4 ± 4,36 % respectivement. La résistance bactérienne est relativement importante vis-à-vis de plusieurs antibiotiques à savoir l'ampicilline, l'amoxicilline + acide clavulanique pour les souches d’Escherichia coli et Salmonella sp. Cependant, les souches Staphylococcus aureus étaient résistantes à l'acide fusidique, à la pénicilline et à l'oxacilline ; alors que l’Enterococcus faecalis était résistante à l'acide fusidique, à la pénicilline, à l'oxacilline et à la ticarcilline. Le pouvoir antibactérien des macérâts des feuilles contre les souches testées était proportionnel aux concentrations testées, et non seulement actif contre les bactéries à Gram positif et à Gram négatif, mais aussi sur l'espèce fongique Candida albicans. La CMI estimée pour Escherichia coli, Enterococcus faecalis et Staphylococcus aureus était de l'ordre de 10 mg/ml qui semble plus efficace que celle contre les souches Salmonella sp.,Klebseilla pneumonaie, Pseudomonas aeruginosa et Candida albicans qui était à 30 mg/ml. Ces résultats préliminaires confirment que la plante étudiée présente une activité antimicrobienne proportionnelle à la concentration des extraits testés. |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | L. |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Macérâts |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Activité antimicrobienne |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Quercus robur |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Souches pathogènes |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Analyses phytochimiques |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | L. |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Phytochemical analyzes |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Quercus robur |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Uropathogenic strains |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Macerates |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Antimicrobial activity |
| 700 10 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nabbou, N. |
| Relator term | author |
| 700 10 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Boukhalkhel, S. |
| Relator term | author |
| 700 10 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Dehini, I. |
| Relator term | author |
| 786 0# - DATA SOURCE ENTRY | |
| Note | Phytothérapie | 18 | 5 | 2020-10-01 | p. 262-274 | 1624-8597 |
| 856 41 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://shs.cairn.info/revue-phytotherapie-2020-5-page-262?lang=en&redirect-ssocas=7080">https://shs.cairn.info/revue-phytotherapie-2020-5-page-262?lang=en&redirect-ssocas=7080</a> |
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