Publications Scientifiques
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Item Immunodominant IgE epitopes of Der p 5 allergen(Bentham Science Publishers, 2018) Lahiani, Sadjia; Dumez, Marie-Eve; Bouaziz, Ahlem; Djenouhat, Kamel; Khemili, Souad; Bitam, Idir; Gilis, Dimitri; Galleni, MorenoItem Production de biosurfactants par Haloarcula sp. souche D21 en conditions salines à partir de milieux de culture à base de lactosérum et des eaux de trempage de maïs (corn steep liquor)(2012) Kebbouche-Gana, Salima; Khemili, Souad; Lenchi, Nesrine; Akmoussi-Toumi, Siham; Ferioune, I.Item Phenotypic characterization, 16s RNA identification of cultivable on-obligate halophilic bacterial communities from a Tinsilt sebkha, wilaya of Oum El Bouaghi (Algeria) and screening for extracellulars hydrolases and biosurfactants(2013) Kebbouche-Gana, Salima; Lenchi, Nesrine; Gana, Mohamed Lamine; Khemili, SouadItem Valorisation de sous produits agroalimentaires pour la production de biosurfactants(2014) Kebbouche-Gana, Salima; Khemili, Souad; Akmoussi-Toumi, Siham; Lenchi, NesrineItem Homology modelling and bioinformatics analysis of haloarchaeal α-amylases : an overview of proteins haloadaptation and stability(2013) Khemili, Souad; Zorgani, Mohamed Amine; Kebbouche-Gana, Salima; Lenchi, NesrineItem Biotechnology-2014 biodegradation performance of phenol by free and alginate entrapped cells of Haloarcula strain D21, an extremely halophilic bacterium isolated from a solar saltern (Ain Salah, Algeria)(2014) Kebbouche-Gana, Salima; Gana, Mohamed Lamine; Khemili, SouadImmobilization is a general term that describes many different forms of cell attachment or entrapment. These different forms include encapsulation of cells in a polymer-gel and entrapment in a matrix. The Advantages of these techniques are to reduced possibility of inoculum contamination during storage, transport and application. So, beads are non toxic, biodegradable and non-polluting and can be produced in large quantities, stored for extended periods. Moreover, phenols and phenolic compounds are widely distributed as environmental pollutants due to their common presence in the effluents of many industrial processes, including oil refineries, ceramic plants, coal conversion process, phenolic resins, pharmaceutical and food Industries. The aim of this study was to compare the biodegradation performance of phenol by using free and encapsulated cells of Haloarcula strain D21 isolated from crude oil contaminated saline water collected at Ain Salah in Algeria. Batch experiments were carried out in order to obtain the maximum phenol degradation rates by analyzing the influence of the immobilization in calcium-alginate gel beads on biodegradation performanceItem Production of biosurfactant on crude date syrup under saline conditions by entrapped cells of Natrialba sp. strain E21, an extremely halophilic bacterium isolated from a solar saltern (Ain Salah, Algeria)(Springer, 2013) Kebbouche-Gana, Salima; Gana, Mohamed Lamine; Ferrioune, Imen; Khemili, Souad; Lenchi, Nesrine; Akmoussi-Toumi, Siham; Bouanane-Darenfed, Nabila Amel; Djelali, Nacer-EddineA bacterial strain E21 was isolated from a sample of water collected in the salt lake located close to Ain Salah, Algeria. The analysis of 16S rRNA gene sequence had indicated that the strain had 93 % sequence similarity with the genus Natrialba sp. strain E21 (Gen- Bank, FR750525.1) and was considered extremely halo- philic. Production of biosurfactant by the strain E21 with free and entrapped cells was investigated using soluble starch in the saline conditions. Biosurfactant synthesis was followed by measuring the surface tension and emulsifying index 9 days under optimal conditions (40 C, pH 7). Some diffusional limitations in alginate and agar beads affected the kinetics of biosurfactant production when compared to that obtained with free cells culture. The minimum values of surface tension were 27 and 30 mN m - 1 achieved after 9 days with free and immobilized cells, respectively, while the corresponding maximum E24 values were 65.3 and 62.3 %, respectively. The re-use of bacterial cells along with the limited cell losses provided by the immobilized system might lead to significant reduction of the biosur- factant production cost