Évaluation des activités antioxydante et antibactérienne des extraits aqueux des feuilles et des fleurs deBituminaria bituminosa(L.) Stirton

Bammou, Mohamed; Bouhlali, Eimad dine Tariq; Sellam, Khalid; El-Rhaffari, L.; Ibijbijen, Jamal; Nassiri, Laila

doi:10.3166/phyto-2020-0226

Cited by 4 publications

(3 citation statements)

References 29 publications

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“…The uncontrolled use of these products constitutes a major risk to public health. The transfer of resistant bacteria to humans via the food chain and the environment constitutes one of the major routes of spread of antibiotic resistance [2], as well as the use of synthetic antioxidant molecules are responsible of potential toxicological risks [3]. Regarding those problems, medicinal plants still remain the reliable source of active compounds known by their medicinal properties [4].…”

Section: Introductionmentioning

confidence: 99%

Chemical composition, antioxidant and antimicrobial activities of the essential oil of Illicium verum

et al. 2021

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In recent years, a concern has been expressed about the impact of antibiotics and synthetic antioxidants, which are used to inhibit microbial growth and retard fat oxidation in foods. In addition, antibiotic resistance presents a serious menace to human and environmental ecosystems. This has led the food industry to use natural resources such as essential oils in the preparation of foods, this forming their sensory profile and increasing preservation time there. The objective of this work is to determine the chemical composition and evaluate the antibacterial and antioxidant activity of the essential oil of Illicium verum. The yield of essential oil extracted by hydro distillation is about 4.13%. The chemical composition of the essential oil extracted from the dried fruits of Illicium verum was studied by gas chromatography coupled with mass spectrometry (GC and GC/MS). Twenty-eight constituents, representing 99.74% of the essential oil were identified. The major compounds are: trans-anethole (83.46%), D-Limonene (4.56%), Estragole (3.47%) and Linalool (1.07%). Antioxidant activity was determined by the DPPH assay. The essential oils of Illicium verum showed low antioxidant activity with IC50= 286.19 ± 7.4 mg/mL, compared to Ascorbic acid IC50= 0.09 ± 0.01 mg/mL. The antibacterial effect of this essential oil was tested against six microorganisms, of which Staphylococcus aureus is the most sensitive with an MIC of about 1/1000 (v/v), followed by Staphylococcus epidermidis and Enterobacter cloacae with an MIC equal to 1/100 (v/v).

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Section: Introductionmentioning

confidence: 99%

Chemical composition, antioxidant and antimicrobial activities of the essential oil of Illicium verum

et al. 2021

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“…Calendula officinalis is part of the rich and diverse Moroccan flora, it is called in Moroccan dialece Jemmra and is used in traditional Moroccan medicine 23,24 . In this work, we present our study carried out on spontaneous Calendula officinalis and originating from the El Hammam region in Khenifra Morocco.…”

Section: A C C E P T E D a R T I C L Ementioning

confidence: 99%

Total phenolic and flavonoids contents and in vitro evaluation of antioxidant activity of several Calendula officinalis (Marigold) extracts

et al. 2021

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The search for natural antioxidants to replace synthetic antioxidants is one of humanity’s health priorities. Medicinal and Aromatic Plants (MAP) contain phenolic compounds that act as natural antioxidants. The aim of this work is to study total phenols and flavonoids contents and evaluate the antioxidant power of various extracts of Calendula officinalis. Extracts were prepared in two steps: hot solid-liquid extraction, by Soxhlet and from the plant powder using a solvent (Methanol/water 70/30, Acetone/water 70/30) followed by a liquid-liquid extraction by splitting the obtained extract by two increasingly polarized solvents (Ethyl acetate and Butanol). Total phenols and flavonoids were evaluated using gallic acid and quercetin as standards, respectively. The antioxidant activity of extracts was determined by DPPH (2,2-diphényl 1-picrylhydrazyle) free radical reduction method. The two crude fractions of Methanol and Acetone presented the highest levels of total phenols (7,58±0,38 mg GAE/g dm and 6,80±0,34 mg GAE/g dm respectively), and flavonoids (7,37±0,37 mg QE/g dm and 7,93±0,40 mg QE/g dm respectively). Ethyl acetate fractions showed a high antioxidant activity. This study demonstrated that extracts from Calendula officinalis flowers present a promising source of natural antioxidant.

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“…The present study is therefore a part of a serial studies carried out by our research team on the valorization of Bituminaria bituminosa (L.) Stirton, with the ultimate objective to introduce it into degraded sylvopastoral sites in the Central Middle Atlas region [11,12,13,14,15,16]. The specific objective of this study is to evaluate the response of B. bituminosa to different rhizobia strains inoculation and therefore to assess the efficiency of the symbiosis.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Symbiotic Efficiency of Rhizobium Strains Applied to Bituminaria bituminosa (L.) Stirton

Zennouhi

Rfaki²,

Mderssa

et al. 2020

MRJI

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Aims: The study aimed to evaluate the effect of inoculation by different rhizobacteria on Bituminaria bituminosa plants grown under greenhouse conditions. Study Design: An experimental study. Place and Duration of Study: The study was carried out at the Department of Biology (Environment and valorization of microbial and plant resources Unit), Faculty of Sciences, Moulay Ismail University-Meknes, from November 2019 to February 2020. Methodology: Eleven species and/or isolates belonging to Rhizobium genus are used to inoculate B. bituminosa plants; similarly, fresh and dry crushed nodules previously collected from B. bituminosa shrubs are tested. The bacterial inoculation effects are evaluated through the estimation of inoculated plants’ fresh and dry shoots weight, root dry weight, total nitrogen, nodules number and fresh weight in comparison to non-inoculated plants. The infectivity and efficiency of the bacteria and the biological nitrogen fixation are also evaluated. Results: The results enable us to select the infective strains on the basis of their positive effect on growth and total nitrogen, in order to produce inoculum for B. bituminosa. Efficiency and biological nitrogen fixation are also very high compared to the control, especially with the B.b1 strain isolated from Bituminaria bituminosa and identified as Rhizobium tibeticum. The fresh nodules crushing is also very efficient. as inoculant. Conclusion: The use of symbiotic complex as Rhizobium tibeticum – Bituminaria bituminosa or an inoculum produced from fresh nodules are an eco-friendly alternative for the design of sylvo-pastoral systems ensuring increased soil fertility, fodder productivity and sustainable agroforestry.

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Évaluation des activités antioxydante et antibactérienne des extraits aqueux des feuilles et des fleurs deBituminaria bituminosa(L.) Stirton

Cited by 4 publications

References 29 publications

Chemical composition, antioxidant and antimicrobial activities of the essential oil of Illicium verum

Chemical composition, antioxidant and antimicrobial activities of the essential oil of Illicium verum

Total phenolic and flavonoids contents and <i>in vitro</i> evaluation of antioxidant activity of several <i>Calendula officinalis</i> (Marigold) extracts

Evaluation of the Symbiotic Efficiency of Rhizobium Strains Applied to Bituminaria bituminosa (L.) Stirton

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