Activité antimicrobienne des huiles essentielles de Pistacia atlantica Desf. de l’Algérie
12/2009; 7(6):304-308. DOI: 10.1007/s10298-009-0505-5
L’activité antimicrobienne des huiles essentielles de la résine de Pistacia atlantica Desf., récoltées dans trois stations de l’Ouest et le Sud-Ouest de l’Algérie, a été testée in vitro sur des isolats cliniques
de sept souches bactériennes (Escherichia coli, Enterobacter cloacae, K. pneumoniae, Pseudomonas aeruginosa, Xanthomonas maltophila, Enterococcus feacalis et Staphylococcus aureus) et de trois souches fongiques (Candida albicans, Candida albicans ATCC20027 et Candida albicans ATCC20032). La détermination du pouvoir antibactérien et antifongique a été réalisée par la méthode de la diffusion sur gélose.
Tous les extraits ont montré une forte activité antimicrobienne vis-à-vis des souches fongiques et bactériennes à des concentrations
voisines de 105 µg/ml. Les huiles essentielles ont révélé un grand pouvoir antibactérien vis-à-vis de Staphylococcus aureus et Enterococcus feacalis avec des concentrations minimales inhibitrices (CMI) inférieurs à 10 µg/ml. Candida albicans a présenté une forte résistance aux huiles essentielles testées.
Antimicrobial activity of essential oils of Pistacia atlantica Desf. resin, collected in three localities from the western and south-western of Algeria was tested in vitro on clinical
isolates of seven species of bacteria (Escherichia coli, Enterobacter cloacae, Klebsiella pneumoniae, Pseudomonas aeruginosa, Xanthomonas maltophila, Enterococcus
feacalis, and Staphylococcus aureus) and three species of fungi (Candida albicans, Candida albicans ATCC20027 and Candida albicans ATCC20032). Diffusion method was used for antibacterial and antifungal activities testing. All of the extracts showed strong
antimicrobial activity against both fungi and bacterial strains at the concentration of 105 µg/ml. The essential oils exhibited strong antibacterial activity against Staphylococcus aureus and Enterococcus feacalis with MIC lower than 10 µg/ml. Candida albicans showed resistance to all volatile oils tested.
Available from: Jose Maria Prieto
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ABSTRACT: This study explores historical iatrosophia texts from Cyprus from a botanical and medico-pharmacological point of view focusing on remedies containing resins and gums. The iatrosophia are a genre of Greek medical literature of Byzantine origin and can be described as medicine handbooks which serve as therapeutic repositories containing recipes or advice. To extract and analyze information on plant usage in such sources - which are largely unedited texts and so far have not been translated - we investigate (i) the relationship of the iatrosophia to Dioscorides' De Materia Medica as well as historic pharmaceutical books or standard texts on modern phytotherapy and (ii) the validity of the remedies by comparing them to modern scientific data on reported biological activities. In the six texts investigated 27 substances incorporating plant exudates are mentioned. They are obtained from over 43 taxa of higher plants and in particular are used to treat dermatological, gastrointestinal, and respiratory tract conditions. The comparison to historic pharmaceutical books and phytotherapy texts reflects the gradual decline of the use of plant exudates in Western medicine. While remarkable parallels to Dioscorides' text exist, the non-Dioscoridean influence suggests a complex pattern of knowledge exchange. Overall, this resulted in an integration of knowledge from so far poorly understood sources. The comparison with bioscientific data reveals a fragmentary picture and highlights the potential of these unexplored substances and their uses. Where relevant bioscientific data are available, we generally found a confirmation. This points to a largely rational use of the associated remedies. Taken together, the iatrosophia are a valuable resource for ethnopharmacological and natural product research. Most importantly they contribute to the understanding of the development of herbal medicines in the (Eastern) Mediterranean and Europe.
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ABSTRACT: Biometric measurements of leaves and fruits from Algerian atlas pistachio province Ouled Djellel (Biskra) Ain Oussara and Messaad (Djelfa), were realized and compared. The results showed significant differences between different varieties which may be due to climatic factors.
Essential oils of the leaves and the oleoresin from Ouled Djellel were extracted and examined then their antimicrobial activity was tested on five bacterial strains of clinical origin (Staphylococcus aureus, Escherichia coli, Escherichia coli ATCC 25922, Klebsiella pneumoniae, Pseudomonas aeruginosa) and a yeast strain (Candida albicans).
The oleoresin has provided an essential oil yield of 25% and rich on α-pinèn, leaves have presented a yield of 0,24% when the terpinèn-4-ol was in high percentage, both essential oils were characterized of an antimicrobial effect on the most microbial strains.
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