1er Congrès International sur les Innovations dans la Chimie à visée Thérapeutique (1’ICTA 2022) 23 et 24 Octobre 2022
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Item Effect of Quercetin on in vitro methane production and protozoa, detected by flotac technique(University of Oum El Bouaghi, 2021-12-13) Boussaada, A; Arhab, Rabah; Calabrò, S; Grazioli, R; Musco, N; Ferrara, M; Tudisco, RQuercetin is a flavonoid produced as secondary metabolite by several plants; flavonoids have recently acquired considerable interest in animal nutrition for changing microbial activity and fiber digestion, increasing volatile fatty acids production and reducing methane emission (CH4). Livestock contribute to greenhouse due to CH4 resulting from rumen fermentation of feeds. Methanogens associated with protozoa are responsible for rumen CH4 production. The aim of this study was to verify the in vitro effect of pure Quercetin, added to a dairy cow diet on microbial activity, CH4 production and protozoa count. Using In vitro fermentation a diet (forage: concentrate ratio 60:40) alone as (control) and with 150 mg of pure quercetin (Sigma-Aldrich) at 39°C, under anaerobic conditions with buffered cow rumen fluid, the main fermentation parameters (pH, total gas,CH4, truly organic matter digestibility (IVOMD), VFA) were determined after 24h of incubation and protozoa count by FLOTAC technique. The addition of quercetin significantly affected most of in vitro parameters. Quercetin reduced CH4 and protozoa number, these effect can be explained by the antimicrobial activity of quercetine. FLOTAC proved useful for protozoa detection on rumen materialItem Screening phytochimique de « l'arbousier » arbutus unedo l. ericaceae(2021-12-13) Ahtirib, Abbas; Bouzabata, Amel; Boughandjioua, Amora NadiaL'arbre à fraise « L' arbousier » Arbutus unedo L., Ericaceae est une espèce typique du pourtour méditerranéen, Il est de croissance relativement lente, très décoratif par son écorce, son port, son feuillage persistant, sa floraison, et sa fructification et qui peut de temps en temps atteindre 9 m è tres de long et 8 mètres de large, bien qu'il soit habituellement un peu plus petit (de 2 à 4 m de hauteur). Ce sont les fruits surtout qui sont destinés à l'usage alimentaire et thérapeutique. Nous présentons dans ce travail l'étude de cette plante méditerranéenne intéressante, et elle a port é sur une étude phytochimique permettant d' identifier certains groupes chimiques bioactifs contenus dans des différentes préparations des extraits aqueux, mé thanoliques, é thanoliques et chloroformiques pour les différentes parties de la plante Arbutus unedo L. Le screening phytochimique des différentes parties de la plante a révélé sa richesse en polyphenols notamment les flavonoïdes et les tanins. Enfin, notre travail n'est qu' un essai préliminaire à travers lequel nous avons voulu dé montrer la place de l' arbousier dans la médecine algérienne traditionnelle et apprécier la qualité de cette plante, néanmoins d'autres recherches restent nécessaires pour un contrôle complet et riche exploitation de cette plante en Algérie.Item Contribution to induction motor control for electric traction based on intelligent techniques(University of Oum El Bouaghi, 2021) Zairi, Raid; Salmi, SalahThe negative impact of CO2 emissions from diesel is forcing the electrification of rail systems to reduce gas emissions. In the case of electric traction the induction motor is considered in many applications as the best solution. This paper presents an intelligent strategy to improve the control performance of the asynchronous motor in a railway traction chain. The technique used to control this motor is IFOC because of its good suitability on the one hand its robustness, of which speed, torque and flux play an essential role in terms of the dynamic parameters of the system. The maximum torque and efficiency are obtained by controlling the speed by the conventional PI controller and that of fuzzy logic and neural network. The simulation results obtained by Matlab/Simulink show that the artificial intelligence ensures the best performance in terms of robustness, stability and fidelity during the sudden variation of the speed and torque.Item Influence of additives to electrolytic baths on the quality of deposits during electrodeposition(University of Oum El Bouaghi, 2022-10-23) Benahmed, MerzougItem زبدة طبيعية من زيت الزيتون(جامعة أم البواقي, 2022-10-23) سالمة، بدر الدينItem التغذية العلاجية بين الأمن الغذائي و الدوائي(جامعة أم البواقي, 2022-10-23) جاسم، باسلItem Virtual Screening of A. unedo Phytochemicals as Potential Inhibitors of α-Amylase and α-Glucosidase Activities Using Computer Aided Drug Design(University of Oum El Bouaghi, 2022-10-23) Belattar, Nadjah; Krid, Adel; Belkhiri, Lotfi; Mekkiou, Ratiba; Djekoun, AbdelhamidItem Virtual screening by molecular docking of mixed dehydroacetic acid complexes(University of Oum El Bouaghi, 2022-10-23) Abdeldjebar, Hasnia; Ait Ramdane, Chafia; Terbouche, AchourItem Une zeolithe en tant que ecocatalyseur selectif de forme synthese hautement selective des salicylaldehydes issue de la reaction de formylation selective de duff mediee (para-formylation)(Université d'Oum El Bouaghi, 2022-10-23) Kettouche, Hichem Sadrik; Bouti, Nour El Houda; Aissaoui, Fatima ZahraItem Therapeutic nutrition between food and medicine security(University of Oum El Bouaghi, 2022-10-23) Jassem, Bassel Abdel latifItem Theoretical investigation of inorganic complexes in sandwich fashion (bonding mode and electronic structure)(University of Oum El Bouaghi, 2022-10-23) Mecheri, Sabri; Zouchoune, BachirItem The Potential of Natural products in the Management of COVID-19(University of Oum El Bouaghi, 2022-10-23) Badary, OsamaItem Synthesis, spectroscopic characterization and biological activities of new hydrazone derivative(University of Oum El Bouaghi, 2022-10-23) Saouli, Saliha; Sid, AssiaItem Synthesis, characterization, antioxidant activity and molecular docking of some new quinoline hybrids(University of Oum El Bouaghi, 2022-10-23) Bouria, Houria; Alliouche, Hayette; Chouiter, Mohamed Imed; Bensegueni, RafikItem Synthesis, characterization, and biological activities of new hydrazone derivative(University of Oum El Bouaghi, 2022-10-23) Selatnia, Ilhem; Saouli, Saliha; Oday, Mohammad Ahmad Khamaysa; Sid, AssiaItem Synthesis of novel n-(2-chloroethyl) sulfamidophosphonates derivatives via kabachnik-fields reaction assisted by microwave irradiations(University of Oum El Bouaghi, 2022-10-23) Sayad, Rayene; Beldjezzia, Dounia; Aouf, Zineb; Aouf, NoureddineItem Synthesis of lta zeolite from a natural resource "bentonite"(University of Oum El Bouaghi, 2022-10-23) Taib, Hana; Benbouzid, MohammedItem Synthesis of fluorinated thiazoles as anticaner agents(University of Oum El Bouaghi, 2022-10-23) Chouha, Nora; Desaubry, LaurentItem Synthesis and biological activity on rat aorta ring of open analogues of cromakalim bearing a thiourea moiety(University of Oum El Bouaghi, 2022-10-23) Bouhedja, Mourad; Mechouche, Nadia; Bouider, Nafila; Stiti, Mohamed-Zakaria; Habila, Tahir; Khelili, SmailItem Syntheses, evaluation antimicrobienne de nouveaux imidazolone/thione derives de l’uree et thiouree(Université d'Oum El Bouaghi, 2022-10-23) Belkhadem, Fatima; Taieb Brahimi, Fawzia; Aliothmane, Adel