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Phenolic compounds of virgin olive oils and dried figs have been broadly investigated over the past 30 years. Consumption of extra virgin olive oil along with dried fig is a common practice in the Algerian diet, but no data is available regarding their combined biological activities. Recently, we used different Algerian dried fig varieties to obtain virgin olive oily macerates and assess their antioxidant and antimicrobial potential. This article states the estimation of phenolic content of various extra virgin olive oils and their oily macerates prepared from different Algerian varieties of several geographical areas using Folin-Ciocalteu. The process was followed by the evaluation of antioxidant and in vitro antimicrobial potential of the methanolic extracts of oils and macerates against specific resistant human pathogens. The results showed that, the extract of Chemlali Bejaïa virgin olive oil (CBOO) variety had notably higher total phenolics (700 ± 56mg of gallic acid/kg) in opposition to Chemlali Oran virgin olive oil (COOO)(202.96 ± 26 mg of gallic acid/kg).The extracts of macerates proved to have higher antioxidant and antimicrobial activity against tested Gram-positive and Gram-negative bacteria in comparison with the virgin olive oil extract. Their broad extensive antimicrobial potential may be due to the synergetic effect of polyphenols of both extra virgin olive oils and dried figs. Candida albicans showed resistant to pure extra virgin olive oil extracts but didn't to the macerate extracts. [ABSTRACT FROM AUTHOR]

The leaf essential oil ofAjuga ivagrowing wild in Mascara region situated in the North West of Algeria, has been obtained by hydrodistillation and analyzed by GC and GC-MS. We proposed to determine the physicochemical, organoleptic and chemical identification of these components. Twenty two volatile compounds were identified which included: dienestrol (54.04%), eucalyptol (27%), o-xylene (7.98 %), 1-octadecanol (5.80%); 3-carene (4.46%), (E)-2,3,6- trimethoxypentafulvene-1-carbonitrile (4.34%), (-)-spathulenol (1.77%), nonanal (1.24%). The oil fromAjuga ivashowed activities againstEscherichia coli, Salmonella typhimurium, Staphylococcus aureus,Bacillus subtilis,andPseudomonas aeroginosa. [ABSTRACT FROM PUBLISHER]

Enterobacter cloacae is currently known as a urinary tract infection agent, especially in hospitals recognized by its resistance to 3rd generation cephalosporin’s, which makes it a target for different works in order to find natural and definitive means of fight and treatment. Their limited biochemical reactivity and their different morphotypes is a real obstacle to their identification by conventional phenotypic means. 16S rRNA and 18S rRNA gene sequencing is highly successful for bacterial identification. However, in recent years, matrix-assisted laser desorption ionization time in flight mass spectrometry (MALDI-TOF MS) has emerged as a very valid technique for the identification and diagnosis of microorganisms. Our study aims to identify three bacteria belonging to the Enterobacter cloacae species isolated from various environments by the MALDI-TOF/MS method and then to study their antimicrobial activity against some extracts of dried figs of Ficus carica fruits grown in the mascara region (western Algeria). The determination of the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) shows a significant inhibition of the activity of E. cloacae by the methanolic extract of El-Keurt variety at 2.34 mg/ml of extract. This study seems to give good guidance for the use of dried figs against Enterobacter infections. DOI: http://dx.doi.org/10.5281/zenodo.4641370