Browsing by Author "SLIMANI, Noureddine"

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    Epidermal anatomic characterization of spontaneous plants belonging to Poaceae, Cistaceae and Boraginaceae families in Algerian northern sahara
    (University of Eloued جامعة الوادي, 2018-06-01) SLIMANI, Noureddine; MAHBOUB, Nasma; CHEHMA, Abdelmadjid; HUGUENIN, Johann; BARIR, Asma; BEZZA, Imane Fatma
    Microscopic examination of the epidermis of wild plants contained in the feces of the dromedary and ruminants is one of the methods for studying the animal diet. This work is a step to elaborate a reference catalog of epidermis to determinate the diet of camel and ruminants in the Saharan rang land situated in Algerian northern Sahara. In this paper, we described the most important epidermal anatomical characteristics of spontaneous perennial plants and ephemeral (08 species and 03families) grazed on Saharan rang land, by using an binocular light microscope. From the results, we propose an identification key to these 08 species from their epidermal characters.
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    Extraction and characterization of the antioxidant activity of essential oils from cotula cinerea in the region of el oued (algeria)
    (جامعة الوادي - University of Eloued, 2019-06-16) MAHBOUB, Nasma; SLIMANI, Noureddine; HENNI, Meriem
    This work is part of the valorization of spontaneous medicinal plants, a large part of which is still virgin and requires in-depth studies, and then our objective will be an extraction of the essential oils of the aerial part and the flowers of Cotula cineria, identifying physical parameters, pH measurement, density measurement, and refractive index. In parallel, biological activity (Antioxidant) is studied. Regarding the physical properties, we find the essential oils of the flowers and the aerial part have basic characters with the values of pH 8,39 and 8,60, the density is 0.95 and 0.90 and the index of refraction is 1,33350 and 1,33375 respectively. Both antioxidant activities show that both essential oils have IC50 45.98mg/ml and 79.28mg/ml for the flowers and the aerial part of Cotula cinerea respectively. A large ability to trap the DPPH radical is noted with the value of IC50 0.04% for ascorbic acid.