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Partager le résultat de cette recherche Interroger des sources externesBiodégradation du méthanol en réacteur Batch et étude de l'influence des paramétres physico-chimique sur la cinétique / Mokhtar Bouziane
Titre : Biodégradation du méthanol en réacteur Batch et étude de l'influence des paramétres physico-chimique sur la cinétique Type de document : texte imprimé Auteurs : Mokhtar Bouziane ; Univ. de Constantine, Éditeur scientifique ; A. Derradji, Directeur de thèse Année de publication : 2009 Importance : 113 f. Note générale : 01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C. 01 CD Langues : Français (fre) Catégories : Français - Anglais
ChimieTags : Biomasse Substrat Biodégradation Ethanol Méthanol Réacteur batch Consortium COV Chèoroforme Mulieu nutritif Methanol VOC substrate biodegradation batch reactor biomass chloroform specific growth nutritive medium لمیثانول الایثانول المركبات العضویة المتطایرة مزیج من الكائنات الحیة الدقیقة معدل النمو
الحیوي الوسط الغدائي الكلوروفورمIndex. décimale : 540 Chimie et sciences connexes Résumé : Among compounds responsible for air pollution, power is increasingly focused
on volatile organic compounds (VOC). These compounds are harmful to humans
since there are direct risks to health , and degrade in the atmosphere , they disturb
the chemical equilibrium and thus constitute the main precursors of
photochemical pollution in the troposphere also contributing to greenhouse effect.
This study contributes to the understanding of biological phenomena that control
the degradation of volatile organic compounds in a series of batch reactors.
The lead compound which has been testing in batch reactor with a consortium
from the treatment plant of El Menia is the methanol.
In this work we studied the influence of some parameters
• Influence of the initial concentration of methanol S0.
• Influence of the initial concentration of biomass and X0 determining the initial
concentration of biomass suitable for degradation.
• Influence of temperature on the biodegradation and the determination of the
appropriate temperature.
• Influence of the presence of a substituent gênant biodegradation, chloroform
(CHCl3).
• Influence of the presence of ethanol.
Finally we studied the characteristics of the specific growth rate of biodegradation for
methanol, ethanol and the mixture (methanol + ethanol).Diplôme : Magistère En ligne : ../theses/chimie/BOU5441.pdf Permalink : index.php?lvl=notice_display&id=3793 Biodégradation du méthanol en réacteur Batch et étude de l'influence des paramétres physico-chimique sur la cinétique [texte imprimé] / Mokhtar Bouziane ; Univ. de Constantine, Éditeur scientifique ; A. Derradji, Directeur de thèse . - 2009 . - 113 f.
01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C. 01 CD
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : Biomasse Substrat Biodégradation Ethanol Méthanol Réacteur batch Consortium COV Chèoroforme Mulieu nutritif Methanol VOC substrate biodegradation batch reactor biomass chloroform specific growth nutritive medium لمیثانول الایثانول المركبات العضویة المتطایرة مزیج من الكائنات الحیة الدقیقة معدل النمو
الحیوي الوسط الغدائي الكلوروفورمIndex. décimale : 540 Chimie et sciences connexes Résumé : Among compounds responsible for air pollution, power is increasingly focused
on volatile organic compounds (VOC). These compounds are harmful to humans
since there are direct risks to health , and degrade in the atmosphere , they disturb
the chemical equilibrium and thus constitute the main precursors of
photochemical pollution in the troposphere also contributing to greenhouse effect.
This study contributes to the understanding of biological phenomena that control
the degradation of volatile organic compounds in a series of batch reactors.
The lead compound which has been testing in batch reactor with a consortium
from the treatment plant of El Menia is the methanol.
In this work we studied the influence of some parameters
• Influence of the initial concentration of methanol S0.
• Influence of the initial concentration of biomass and X0 determining the initial
concentration of biomass suitable for degradation.
• Influence of temperature on the biodegradation and the determination of the
appropriate temperature.
• Influence of the presence of a substituent gênant biodegradation, chloroform
(CHCl3).
• Influence of the presence of ethanol.
Finally we studied the characteristics of the specific growth rate of biodegradation for
methanol, ethanol and the mixture (methanol + ethanol).Diplôme : Magistère En ligne : ../theses/chimie/BOU5441.pdf Permalink : index.php?lvl=notice_display&id=3793 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/5441 BOU/5441 Thèse Bibliothèque principale Thèses Disponible
Titre : Comportement écophysiologique de deux chénopodiacées des genres Atriplex et Spinacia soumises au stress salin. Type de document : texte imprimé Auteurs : Imane Bouchoukh, Auteur ; Chaabane Rahmoune, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2010 Importance : 112 f. Format : 31 cm Note générale : 01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Biologie végétale:Ecophysiologie et biotechnologie végétale Salinité Atriplex halimus Atriplex canescens Spinacia oleracea , longueur
tige longueur racine biomasse Chlorophylles proline sucres solubles ADN SDS-PAGE protéines Salinity length stem length root dry weight Chlorophylls sugars soluble DNA proteins الملوحة طول الساق طول الجذر الكتلة الحيوية الجافة الكلوروفيل البرولين البروتينات السكرياتIndex. décimale : 570 Sciences de la vie. Biologie Résumé : In arid and semi-arid areas, particularly around the Mediterranean Basin, soil salinisation is one of the major abiotic factors which reduce the yield of several cultures. The introduction of tolerant plants to salinity is one of the techniques most used to improve the quality of soil in these areas. Chenopodiaceae constitute a very important family of halophyts, of which are genus Atriplex and Spinacia.
To highlight the potentialities of adaptation to the salinity of Atriplex halimus L, Atriplex canescens L and two varieties of spinach: Spinacia oleracea L., a saline stress was induced by the application of various NaCl doses (0g/l, 6g/l, 12g/l, 18g/l and 24g/l), in semi-controlled conditions.
The tolerance of these genotypes was studied by the capacity of growth and output. Indeed, the average height of the stems, the length of roots and the dry weight at the end of the experiment vary according to the level of saline stress. The two species of Atriplex showed a great resistance to the salinity expressed by their development of important shoots and roots. The two varieties of spinach present a growth adapted to the saline stress, but the introduced variety (Linda) is shown to be more sensitive than the local variety (GSN).The study of the growth of the plants was supplemented by DNA dosage and chlorophylls (A), (b) and (a+b); these two parameters reflect the mitotic and photosynthetic activities respectively.
The accumulation of osmoregulators varies from one species another, namely the free
proline and soluble sugars. Atriplex and spinach accumulate proline in shoots and roots. As for soluble sugars, they are accumulated according to salinity only at the two species of Atriplex. The comparison of the SDS-PAGE profiles of the protein leaves reveals 7 proteins which appear in stress, of a molecular weight of 190, 185, 158, 136, 127.5, 27 and 12 KDa, whose presence and degree of accumulation vary from one genotype to another.Note de contenu : Annexes. Diplôme : Magistère En ligne : ../theses/biologie/BOU5700.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=1795 Comportement écophysiologique de deux chénopodiacées des genres Atriplex et Spinacia soumises au stress salin. [texte imprimé] / Imane Bouchoukh, Auteur ; Chaabane Rahmoune, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2010 . - 112 f. ; 31 cm.
01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Biologie végétale:Ecophysiologie et biotechnologie végétale Salinité Atriplex halimus Atriplex canescens Spinacia oleracea , longueur
tige longueur racine biomasse Chlorophylles proline sucres solubles ADN SDS-PAGE protéines Salinity length stem length root dry weight Chlorophylls sugars soluble DNA proteins الملوحة طول الساق طول الجذر الكتلة الحيوية الجافة الكلوروفيل البرولين البروتينات السكرياتIndex. décimale : 570 Sciences de la vie. Biologie Résumé : In arid and semi-arid areas, particularly around the Mediterranean Basin, soil salinisation is one of the major abiotic factors which reduce the yield of several cultures. The introduction of tolerant plants to salinity is one of the techniques most used to improve the quality of soil in these areas. Chenopodiaceae constitute a very important family of halophyts, of which are genus Atriplex and Spinacia.
To highlight the potentialities of adaptation to the salinity of Atriplex halimus L, Atriplex canescens L and two varieties of spinach: Spinacia oleracea L., a saline stress was induced by the application of various NaCl doses (0g/l, 6g/l, 12g/l, 18g/l and 24g/l), in semi-controlled conditions.
The tolerance of these genotypes was studied by the capacity of growth and output. Indeed, the average height of the stems, the length of roots and the dry weight at the end of the experiment vary according to the level of saline stress. The two species of Atriplex showed a great resistance to the salinity expressed by their development of important shoots and roots. The two varieties of spinach present a growth adapted to the saline stress, but the introduced variety (Linda) is shown to be more sensitive than the local variety (GSN).The study of the growth of the plants was supplemented by DNA dosage and chlorophylls (A), (b) and (a+b); these two parameters reflect the mitotic and photosynthetic activities respectively.
The accumulation of osmoregulators varies from one species another, namely the free
proline and soluble sugars. Atriplex and spinach accumulate proline in shoots and roots. As for soluble sugars, they are accumulated according to salinity only at the two species of Atriplex. The comparison of the SDS-PAGE profiles of the protein leaves reveals 7 proteins which appear in stress, of a molecular weight of 190, 185, 158, 136, 127.5, 27 and 12 KDa, whose presence and degree of accumulation vary from one genotype to another.Note de contenu : Annexes. Diplôme : Magistère En ligne : ../theses/biologie/BOU5700.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=1795 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/5700 BOU/5700 Thèse Bibliothèque principale Thèses Disponible
Titre : Contribution à l'étude des paramètres physiologiques, morpho-agronomiques et biochimiques de la culture du Colza (Brassica napus L.var. fantasio) Type de document : texte imprimé Auteurs : Univ. de Constantine, Éditeur scientifique Année de publication : 2008 Importance : 87 f. Note générale : 01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C. 01 CD Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Chèorophylle Biomasse Colza ( Brassica napus L.fantasio ) RWC Lipides neutres Lipides polaires Index. décimale : 570 Sciences de la vie. Biologie En ligne : ../theses/biologie/BEN5226.pdf Permalink : index.php?lvl=notice_display&id=1769 Contribution à l'étude des paramètres physiologiques, morpho-agronomiques et biochimiques de la culture du Colza (Brassica napus L.var. fantasio) [texte imprimé] / Univ. de Constantine, Éditeur scientifique . - 2008 . - 87 f.
01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C. 01 CD
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Chèorophylle Biomasse Colza ( Brassica napus L.fantasio ) RWC Lipides neutres Lipides polaires Index. décimale : 570 Sciences de la vie. Biologie En ligne : ../theses/biologie/BEN5226.pdf Permalink : index.php?lvl=notice_display&id=1769 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BEN/5226 BEN/5226 Thèse Bibliothèque principale Thèses Disponible
Titre : Evaluation de la pollution métallique (cadmium, cuivre, plomb, et zinc) des sols des bords d'oued Rhumel (Constantine) par les lombriciens Type de document : texte imprimé Auteurs : Univ. de Constantine, Éditeur scientifique Année de publication : 2002 Importance : 94 f. Note générale : 02 disponibles au magasin de la bibliothèque centrale
01 disponible à la salle de rechercheLangues : Français (fre) Catégories : Français - Anglais
BiologieTags : Algérie Sol Cuivre Cadmium Taxonomie Lombriciens Contamination Plomb Oued Rhumel (Constantine) Constantine ( Algérie) Accumulation Biomasse Bioindicateur Bioépurateur Abondance Elément trace métallique Index. décimale : 570 Sciences de la vie. Biologie Permalink : index.php?lvl=notice_display&id=1560 Evaluation de la pollution métallique (cadmium, cuivre, plomb, et zinc) des sols des bords d'oued Rhumel (Constantine) par les lombriciens [texte imprimé] / Univ. de Constantine, Éditeur scientifique . - 2002 . - 94 f.
02 disponibles au magasin de la bibliothèque centrale
01 disponible à la salle de recherche
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Algérie Sol Cuivre Cadmium Taxonomie Lombriciens Contamination Plomb Oued Rhumel (Constantine) Constantine ( Algérie) Accumulation Biomasse Bioindicateur Bioépurateur Abondance Elément trace métallique Index. décimale : 570 Sciences de la vie. Biologie Permalink : index.php?lvl=notice_display&id=1560 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité ELH/3776 ELH/3776 Thèse Bibliothèque principale Thèses Disponible 
Titre : Recherche de nouvelles potentialités de Yarrowia lipolytica, isolé de différents milieux naturels pour des applications biologiques Type de document : texte imprimé Auteurs : Insaf Bataiche, Auteur ; N Kacem Chaouche, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2014 Importance : 111 f. Format : 30 cm. Note générale : Doctorat 3éme cycle LMD
2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Yarrowia lipolytica Candida boidinii Lipase Biomasse Fermentation liquide Fermentation solide Milieu minimal à l’huile d’olive Biomass Submerged fermentation Solid fermentation minimal medium with olive oil الليباز الكتلة الحيوية التخمير في الوسط السائل التخمير في الوسط الصلب وسط الحد الأدنى مع زيت الزيتون Index. décimale : 570 Sciences de la vie. Biologie Résumé :
A total of 123 yeasts strains was isolated from different samples of cow's milk products collected from Constantine region and spent olive "" Chemlal variety "" obtained from various mills located in Skikda. In fact, 116 strains were selected for their lipolytic activity. Six yeast isolates producing lipase were prescreened for their ability to develop important halos on tributyrine agar medium. Then, two isolates (L2 and G5) were screened for their ability to produce high levels of lipase reaching 13,32 U / ml et 7,15 U/ml, respectively. Preliminary and molecular identification showed that these strains are Yarrowia lipolytica (accession number: ACKF156787) and Candida boidinii (accession number: KF156789), respectively. In order to determine new potentialities of Y. lipolytica L2, a comparative study was carried out between the two strains (L2 and G5) taken onto consideration several parameters and under various conditions culture. The production of lipase by C. boidinii G5 is faster (24h), however, the quantity of lipase produced by Y. lipolytica L2 is higher (13,3U/ml). The effect of adding olive oil with/without tween 80 , in submerged medium, on biomass and lipase production allow showing that Y. lipolytica L2 produce biomass and lipase at low quantity of olive oil (0.5%) without tween 80. In contrast, the production of important biomass and lipolytic activity by C. boidinii G5 require adding olive oil and tween 80 to the medium.
Optimal conditions of lipase activity for L2 and G5 strains are found at pH 7.0 and temperature 37 ° C. the solid fermentation on GOC at different moisture content (70% and 90%) showed that the two strains adapt better when initial humidity is 70%. the maximal concentration of produced enzyme is 20U/ml for Y. lipolytica L2 and 19,2 U /ml for C. boidinii G5, allowing to investigate that the production of lipase in SSF (in presence or absence of tween80), is better than SmF (presence / absence of tween 80), for the two strains. This result open the way on the use of studied strains in solid oil waste degradation. Furthermore, good results were found when using Y. lipolytica L2, as a starter, in a minimal medium with olive oil. During fermentation, all fatty acids were decreased, excepted stearic acid which increases. To conclude, Yarrowia lipolytica present an important biotechnological potential allow it to be exploited at industrial and environmental level.
Diplôme : Doctorat En ligne : ../theses/biologie/BAT6611.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9729 Recherche de nouvelles potentialités de Yarrowia lipolytica, isolé de différents milieux naturels pour des applications biologiques [texte imprimé] / Insaf Bataiche, Auteur ; N Kacem Chaouche, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2014 . - 111 f. ; 30 cm.
Doctorat 3éme cycle LMD
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Yarrowia lipolytica Candida boidinii Lipase Biomasse Fermentation liquide Fermentation solide Milieu minimal à l’huile d’olive Biomass Submerged fermentation Solid fermentation minimal medium with olive oil الليباز الكتلة الحيوية التخمير في الوسط السائل التخمير في الوسط الصلب وسط الحد الأدنى مع زيت الزيتون Index. décimale : 570 Sciences de la vie. Biologie Résumé :
A total of 123 yeasts strains was isolated from different samples of cow's milk products collected from Constantine region and spent olive "" Chemlal variety "" obtained from various mills located in Skikda. In fact, 116 strains were selected for their lipolytic activity. Six yeast isolates producing lipase were prescreened for their ability to develop important halos on tributyrine agar medium. Then, two isolates (L2 and G5) were screened for their ability to produce high levels of lipase reaching 13,32 U / ml et 7,15 U/ml, respectively. Preliminary and molecular identification showed that these strains are Yarrowia lipolytica (accession number: ACKF156787) and Candida boidinii (accession number: KF156789), respectively. In order to determine new potentialities of Y. lipolytica L2, a comparative study was carried out between the two strains (L2 and G5) taken onto consideration several parameters and under various conditions culture. The production of lipase by C. boidinii G5 is faster (24h), however, the quantity of lipase produced by Y. lipolytica L2 is higher (13,3U/ml). The effect of adding olive oil with/without tween 80 , in submerged medium, on biomass and lipase production allow showing that Y. lipolytica L2 produce biomass and lipase at low quantity of olive oil (0.5%) without tween 80. In contrast, the production of important biomass and lipolytic activity by C. boidinii G5 require adding olive oil and tween 80 to the medium.
Optimal conditions of lipase activity for L2 and G5 strains are found at pH 7.0 and temperature 37 ° C. the solid fermentation on GOC at different moisture content (70% and 90%) showed that the two strains adapt better when initial humidity is 70%. the maximal concentration of produced enzyme is 20U/ml for Y. lipolytica L2 and 19,2 U /ml for C. boidinii G5, allowing to investigate that the production of lipase in SSF (in presence or absence of tween80), is better than SmF (presence / absence of tween 80), for the two strains. This result open the way on the use of studied strains in solid oil waste degradation. Furthermore, good results were found when using Y. lipolytica L2, as a starter, in a minimal medium with olive oil. During fermentation, all fatty acids were decreased, excepted stearic acid which increases. To conclude, Yarrowia lipolytica present an important biotechnological potential allow it to be exploited at industrial and environmental level.
Diplôme : Doctorat En ligne : ../theses/biologie/BAT6611.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9729 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BAT/6611 BAT/6611 Thèse Bibliothèque principale Thèses Disponible Documents numériques
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