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All Journal Biodiversitas Journal of Biological Diversity
Amar Bentayeb
Team of Physical-Chemistry of Condensed Matter, Department of Chemistry, Faculty of Sciences, Moulay Ismail University. BP. 11201 Zitoune Meknes, Morocco
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Effectiveness of essential oil from the Artemisia herba-alba aerial parts against multidrug-resistant bacteria isolated from food and hospitalized patients Abdelaziz Ed-Dra; Fouzia Rhazi Filali; Vittorio Lo Presti; Badr Zekkori; Luca Nalbone; Eman Ramadan Elsharkawy; Amar Bentayeb; Filippo Giarratana
Biodiversitas Journal of Biological Diversity Vol. 22 No. 7 (2021)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d220753

Abstract

Abstract. Ed-Dra A, Filali FR, Presti VL, Zekkori B, Nalbone L, Elsharkawy ER, Bentayeb A, Giarrtana F. 2021. Effectiveness of essential oil from the Artemisia herba-alba aerial parts against multidrug-resistant bacteria isolated from food and hospitalized patients. Biodiversitas 22: 2995-3005. The World Health Organization has sounded the warning on the diffusion of multidrug resistance (MDR) bacteria, requiring solutions and alternatives to solve the therapeutic failure that may occur. This study aims to evaluate the antioxidant activity and bactericidal effectiveness against MDR bacteria of Artemisia herba-alba essential oil (A-EO) collected from semi-arid region of Morocco. Chemical composition of the A-EO was determined by Gas Chromatography-Flame Ionisation Detector and Gas Chromatography-Mass Spectrometry, while the antioxidant activity was performed by DPPH scavenging activity and ?-carotene bleaching assay. Antibacterial activity of A-EO, performed by disc diffusion assay and broth dilution method, was tested against: four MDR strains (Escherichia coli, Staphylococcus aureus, Salmonella Typhimurium and Enterococcus faecalis) isolated from food matrices, two (Klebsiella pneumonia and Pseudomonas aeruginosa) from hospitalized patients, and Escherichia coli ATCC 25922 as reference strain. Davanone was the main compound among the 17 identified. An antioxidant activity with IC50 of 1.13±0.02 mg/mL, EC50 of 2.12±0.05 mg/mL and RC50 of 0.87±0.02 mg/mL was observed. A weak activity against P. aeruginosa was observed, while it was intermediate or high against the other bacteria. This study confirms that A-EO could be a suitable alternative to antibiotics in the infection treatment related to MDR bacteria.
Monthly forage value of various plant organs of Brocchia cinerea (Vis.) from a Moroccan arid region NISRINE CHLIF; MOHAMMED DIOURI; MOHAMMED EL OMARI; AMAR BENTAYEB
Biodiversitas Journal of Biological Diversity Vol. 23 No. 1 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230109

Abstract

Abstract. Chlif N, Diouri M, El Omari M, Bentayeb A. 2021. Monthly forage value of various plant organs of Brocchia cinerea (Vis.) from a Moroccan arid region. Biodiversitas 23: 67-74. Brocchia cinerea Vis (Asteraceae) represents a xerophytic botanical species widely used in South-Eastern Morocco as a potential animal feed. The present study was aimed to investigate the chemical profile, as well as the in vitro dry matter digestibility (IVDMD), and to estimate the net energy for lactation (NEl) of some fractions (flowers, leaves, stems, and browsable aerial part (whole part a 10 cm above the ground) of B. cinerea. The ether extract (EE) content of some plant parts varied between 0.43 and 1.89%. As far as, the highest concentration of crude protein (CP) was found in leaves. The maximal values for neutral detergent fiber (NDF), acid detergent fiber (ADF), and acid detergent lignin (ADL) were found in the mature stems with 58.63%, 44.87%, and 13.05%, respectively. The leaves were the richest fraction in essential oil (EO), total phenols (TP), and tannins. Furthermore, the IVDMD values of various fractions of plants ranged between 59.56 to 89.43 %. The assessed NEl was highest during cold months in some fractions of young plants and decreased with maturity. In conclusion, B. cinerea has a good nutritive value, especially in leaves and early stages.
Co-Authors Abdelaziz Ed-Dra Badr Zekkori Eman Ramadan Elsharkawy Filippo Giarratana Fouzia Rhazi Filali Luca Nalbone MOHAMMED DIOURI MOHAMMED EL OMARI NISRINE CHLIF Vittorio Lo Presti