Browsing by Author "Chebouti, Nadjiba"

Filter results by typing the first few letters
Now showing 1 - 3 of 3
  • No Thumbnail Available
    Item
    ANTIBACTERIAL AND ANTIFUNGUL EFFECTS OF FLAVONOIDS ISOLATED FROM CRATEAGUS OXYACANTHA (L.) FRUITS IN THE NORTH ALGERIAN REGIONS (BOUMERDES AND BAINEM)
    (STEF92 TECHNOLOGY LTD, 2014) Behidj-Benyounes, Nassima; Dahmane, Thoraya; Behidj, Khadidja-Kenza; Chebouti, Nadjiba; Kebbouche-Gana, Salima
    The extracts of plants are currently the subject of many scientific researches aiming to exploit their properties antimicrobial appreciated so much in the therapeutic, nutritional, cosmetic, and pharmaceutical fields. In this work, we have study the antimicrobial activity of the extracts namely flavonoids resulting from the Crateagus oxyacatha fruits in two bioclimatic stages (Dellys and Bainem). The determination of the antimicrobial effects on stocks bacterial of Gram(-); Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumoniae and Gram(+) (Bacillus subtilis and Staphylococcus aureus). We have also tested two yeasts; Candida albicans and Saccharomycec cereviciae. As regards the extract of C. oxyacantha of the area of Bainem, one announces that E. Coli is slightly sensitive to the extract of C. Oxyacantha. However S. aureus and B. subtilis have a strong sensitivity to this extract. Whereas the other bacteria are fairly sensitive. With regard to yeasts, one notices that S. cerevisiae is slightly resistant to the extract. This solution has an inhibiting effect on C. albicans. Concerning the extract of C. oxyacantha of the area of Dellys, one notes that E. Coli is slightly sensitive to the extract of C. Oxyacantha. However S. aureus and B. subtilis have a strong sensitivity to this extract. Whereas the other bacteria are fairly sensitive. With regard to yeasts, one notices that S. cerevisiae is slightly resistant to the extract. This extract has a strong inhibiting effect on C. albicans. Through this study, one notices clearly the sensitivity of bacteria Gram-plus compared to the bacteria Gram-for the two areas.
  • No Thumbnail Available
    Item
    ANTIMICROBIAL ACTIVITY OF OIL EXTRACTED FROM THE ALMONDS OF THE FRUITS OF ARGANIA SPINOSA IN THE WEST OF ALGERIA (MOSTAGANEM)
    (2014) Behidj-Benyounes, Nassima; Dahmane, Thoraya; Behidj, Khadidja-Kenza; Chebouti, Nadjiba; Henni, Amina
    This work examines the study of the antimicrobrial effect of oil extracted from the almonds of Argania spinosa L. (Sapotaceae) in the area of Stida (Mostaganem). This natural substance is extracted by using the Soxhlet. The antimicrobial activity of this oil is evaluated on several microorganisms. It has been tested on five bacterial strains; Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Bacillus subtilis and Staphylococcus aureus. The extract has been studied by using Candida albicans. It should be noted that these agents are characterized by a high frequency of contamination and pathogenicity.
  • No Thumbnail Available
    Item
    Effect of entomopathogenic fungi beauveria bassiana and metarhizium anisopliae var. acridum on the haemolymph of the desert locust schistocerca gregaria
    (2011) Milat-Bissaad, Fatma Zohra; Bounaceur, Farid; Halouane, Fatma; Behidj, Nassima; Chebouti, Nadjiba; Doumandji-Mitiche, Bahia
    Effect of Beauveria bassiana and Metarhizium anisopliae var. acridum on the 5 th instar nymphs of Schistocerca gregaria was studied in the laboratory. Infection by these both entomopathogenic fungi caused reduction in the hemolymph total protein. Th e average amounts of total proteins were 2.3, 2.07, 2.09 μg/100 ml of haemolymph in the control and M. anisopliae var. acridum , and B. bassiana based- treatments, respectively. Three types of haemocytes were recognized and identified as prohaemocytes, plasmatocytes and granulocytes. The treatment cause d significant reduction in the total haemocyte count and in each haemocyte type on the 9 th day after its application