https://dspace.univ-ouargla.dz/jspui/handle/123456789/3989 2026-04-03T19:10:26Z 2026-04-03T19:10:26Z MILLA Amel MARNICHE Faiza MAKHLOUFI Abdelhakim DAOUDI-HACINI Samia VOISIN Jean-François DOUMANDJI Salaheddine https://dspace.univ-ouargla.dz/jspui/handle/123456789/6569 2019-05-09T09:27:26Z 2012-06-01T00:00:00Z

Titre: APERÇU DE L’AVIFAUNE DU SAHEL ALGÉROIS Auteur(s): MILLA Amel; MARNICHE Faiza; MAKHLOUFI Abdelhakim; DAOUDI-HACINI Samia; VOISIN Jean-François; DOUMANDJI Salaheddine Résumé: In the present study on birds in the Sahel of Algiers, 78 species of birds are identified, belonging to 56 genus, 35 families and 15 orders, including Passeriformes dominate with 43 species (55.1%). The number of species varies depending on the area. It is 51 in the bush and forests, 67 in parks and gardens and 54 in Réghaïa. We classified birds according to the types of biogeographical origin, phenology and trophic. Fourteen types biogeographicals origins are represented in the avifauna of the Sahel of Algiers. 75.3% of them belong to the large Palearctic region. The 78 species belong to 5 phenological status, 46.1% are sedentary and 38.5% are migratory. These birds are divided into seven trophic 7 categories, including insectivores (32.1%) and polyphagous (32.1%) dominate. Description: Algerian Journal of Arid And Environment (AJAE)

2012-06-01T00:00:00Z GHIABA Zineb BOUKOUADA Mustapha SAIDI Mokhtar YOUSFI Mohamed GHIABA Nadjet KENDOUR Zaouia https://dspace.univ-ouargla.dz/jspui/handle/123456789/6587 2019-05-09T09:28:18Z 2012-06-01T00:00:00Z

Titre: COMPARISON OF ANTIOXIDANT ACTIVITY AND PHENOLIC CONTENT OF THREE VARIETIES OF ALGERIAN DATES Auteur(s): GHIABA Zineb; BOUKOUADA Mustapha; SAIDI Mokhtar; YOUSFI Mohamed; GHIABA Nadjet; KENDOUR Zaouia Résumé: The date palm is a typical plant of the arid and semi arid areas. Unfortunately, not all of its varieties profits from an economic interest except Deglet-Nour. This poses a danger to date palm genetic inheritance and the biodiversity. This study was initiated to investigate the antioxidant of methanol-water extracts from three date palm fruits (DPF) common in the region of Ouargla (Algeria); Degla Baidha (DB), Tamjhourt (Tam) and Tafezauine(Taf). The antioxidant capacities of these varieties were evaluated by using different methods, namely ABTS.+(2,2'-azino-bis-(3-ethylbenzthiazoline-6-sulphonic acid)) scavenging activity expressed as Trolox equivalent antioxidant capacity (TEAC), DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity, Reducing power expressed as Ascorbic acid equivalents antioxidant capacity (AEAC). Total phenol content (TPC) was determined by using Folin–Ciocalteau Reagent. Total flavonoid content (TFC) was determined by using aluminum chloride method. Concerning the ABTS scavenging activity (Trolox equivalent), the TEAC values decreased in the order of DB>Tam>Tef. Effective scavenging concentration (IC50) on DPPH radical decreased in the order of Tam>DB>Tef. Effectiveness in reducing power was in a descending order of Tam>DB>Tef. The TPC was found from 41.8 to 84.73 mg/100g gallic acid equivalents. The order of TPC of DPF is: DB>Tef>Tam, while TFC varied between 7.52 to 14.1 mg/100g rutin equivalents and in a descending order of DB>Tam >Tef. These results suggest that all date varieties serve as a good source of natural antioxidants and could potentially be considered as a functional food or functional food ingredient. Description: Algerian Journal of Arid And Environment (AJAE)

2012-06-01T00:00:00Z HAMMOUDI Roukia HADJ MAHAMMED Mahfoud RAMDANE Farah KHODIR Abed Allah https://dspace.univ-ouargla.dz/jspui/handle/123456789/6592 2019-05-09T09:27:11Z 2012-06-01T00:00:00Z

Titre: ACTIVITE ANTIBACTERIENNE DES EXTRAITS PHENOLIQUES DE LA PLANTE Teucrium polium geyrii Auteur(s): HAMMOUDI Roukia; HADJ MAHAMMED Mahfoud; RAMDANE Farah; KHODIR Abed Allah Résumé: This work presents a contribution to the detection of biological activity of some secondary metabolites of Teucrium polium geyrii, which is a Lamiaceae plant family of Tamanrasset (southern Algeria). The plant was subjected to two types of phenolic compounds extraction, maceration and Soxhlet apparatus. The semi-quantitative analysis of total phenols and flavonoids (phenolic extracts), was performed by colorimetry. It showed that the ethyl acetate extract obtained by maceration contains the largest amount of total phenols, 89.05±0.50 mg/g equivalent of gallic acid, as well as the rate of flavonoids with 0.45±0.001 mg/g equivalent of vitexin. The antibacterial activity carried on bacterial strains pathogenic and alterations, Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus cremoris, Clostridium perfringens, Klebsilla pneumoniae, Escherichia coli and Proteus mirabilis, by Aromatogram method, showed that the extracts tested are endowed interesting antibacterial activity with inhibition zones can reach 3.4±0.3 cm in diameter on Proteus mirabilis. Description: Algerian Journal of Arid And Environment (AJAE)

2012-06-01T00:00:00Z BABAHANI Souad EDDOUD Abdel Ghani https://dspace.univ-ouargla.dz/jspui/handle/123456789/6580 2019-05-09T09:28:48Z 2012-06-01T00:00:00Z

Titre: EFFET DE LA TEMPÉRATURE SUR L’ÉVOLUTION DES FRUITS CHEZ QUELQUES VARIÉTÉS DU PALMIER DATTIER (Phoenix dactylifera L.) € Auteur(s): BABAHANI Souad; EDDOUD Abdel Ghani Résumé: The study of the effect of temperature on the evolution of weight, size and moisture content of dates, in three cultivars of date palm: Deglet Noor, Ghars and Degla Beida is realized in the area of Ouargla in Algeria. This study found that, the onset of fruiting in the date palm does not require relatively high temperatures. The weight, size and moisture content of dates reach their maximum at temperatures that exceed 30°C. At fruit ripening, these characteristics decrease with decreasing temperature. The variations of weight, size and water content of dates follow the changes in temperature. Preliminary knowledge of the temperatures of region is imperative to locate area of cultivation of different cultivars of date palm. Description: Algerian Journal of Arid And Environment (AJAE)

2012-06-01T00:00:00Z