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Partager le résultat de cette recherche Interroger des sources externesAnalyse physico-chimique de deux huiles essentielles commerciales citron et lavandin entrant dans la préparation des produits pharmaceutiques. / Naima Benchikha
Titre : Analyse physico-chimique de deux huiles essentielles commerciales citron et lavandin entrant dans la préparation des produits pharmaceutiques. Type de document : texte imprimé Auteurs : Naima Benchikha ; Université de Constantine, Editeur scientifique ; Fayçal Djazi, Directeur de thèse Année de publication : 2000 Importance : 80 f. Format : 30 cm Note générale : 1 disponible à la salle de recherche
2 disponibles au magasin de la bibliothèque centraleLangues : Français (fre) Catégories : Français - Anglais
ChimieTags : Bactéries Activité antimicrobienne Huile essentielle Gc, GC-MS-EL Synergie Index. décimale : 540 Chimie et sciences connexes Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=4104 Analyse physico-chimique de deux huiles essentielles commerciales citron et lavandin entrant dans la préparation des produits pharmaceutiques. [texte imprimé] / Naima Benchikha ; Université de Constantine, Editeur scientifique ; Fayçal Djazi, Directeur de thèse . - 2000 . - 80 f. ; 30 cm.
1 disponible à la salle de recherche
2 disponibles au magasin de la bibliothèque centrale
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : Bactéries Activité antimicrobienne Huile essentielle Gc, GC-MS-EL Synergie Index. décimale : 540 Chimie et sciences connexes Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=4104 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BEN/3412 BEN/3412 Thèse Bibliothèque principale Thèses Disponible 
Titre : Contribution àl'étude des huiles essentielles et des métabolites secondaires de trois plantes Algériennes de la famille des Apiaceae : Daucus reboudii Coss.ex Batt.&Trab.,Kundmannia sicula (L.) DC.,et Elaeoselinum thapsioides Maire Type de document : texte imprimé Auteurs : Lakhdar Djarri, Auteur ; Kamel Medjroubi, Directeur de thèse ; Elisabeth Seguin, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2011 Importance : 273 f. Format : 31 cm. Note générale : Doctorat en sciences
2 copies imprimées disponiblesLangues : Français (fre) Catégories : Français - Anglais
ChimieTags : Apiaceae Daucus reboudii Kundmannia sicula Elaeoselinum thapsioides huile essentielle chromatographie CPG/MS Spectroscopie UV RMN et Spectrométrie de masse Index. décimale : 540 Chimie et sciences connexes Diplôme : Doctorat en sciences En ligne : ../theses/chimie/DJA6062.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=5983 Contribution àl'étude des huiles essentielles et des métabolites secondaires de trois plantes Algériennes de la famille des Apiaceae : Daucus reboudii Coss.ex Batt.&Trab.,Kundmannia sicula (L.) DC.,et Elaeoselinum thapsioides Maire [texte imprimé] / Lakhdar Djarri, Auteur ; Kamel Medjroubi, Directeur de thèse ; Elisabeth Seguin, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2011 . - 273 f. ; 31 cm.
Doctorat en sciences
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : Apiaceae Daucus reboudii Kundmannia sicula Elaeoselinum thapsioides huile essentielle chromatographie CPG/MS Spectroscopie UV RMN et Spectrométrie de masse Index. décimale : 540 Chimie et sciences connexes Diplôme : Doctorat en sciences En ligne : ../theses/chimie/DJA6062.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=5983 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité DJA/6062 DJA/6062 Thèse Bibliothèque principale Thèses Disponible
Titre : Evaluation de l’activité antioxydante des huiles essentielles de Citrus limon : application à lamargarine Type de document : texte imprimé Auteurs : Louiza Himed, Auteur ; M Barkat, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2011 Importance : 74 f. Format : 31 cm Note générale : Magister
2 copies imprimées disponiblesLangues : Français (fre) Catégories : Français - Anglais
Nutrition, Alimentation et Technologies Agro-AlimentairesTags : huile essentielle Citrus limon expression à froid hydrodistillation activité antioxydante Tocoblend margarine oxydation forcée. Index. décimale : 640 Industrie Alimentaire En ligne : ../theses/agronomie/HIM5966.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=5930 Evaluation de l’activité antioxydante des huiles essentielles de Citrus limon : application à lamargarine [texte imprimé] / Louiza Himed, Auteur ; M Barkat, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2011 . - 74 f. ; 31 cm.
Magister
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Nutrition, Alimentation et Technologies Agro-AlimentairesTags : huile essentielle Citrus limon expression à froid hydrodistillation activité antioxydante Tocoblend margarine oxydation forcée. Index. décimale : 640 Industrie Alimentaire En ligne : ../theses/agronomie/HIM5966.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=5930 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité HIM/5966 HIM/5966 Thèse Bibliothèque principale Thèses Disponible
Titre : Évaluation des activités biologiques des huiles essentielles du citron (Citrus limon) : encapsulation et application comme agent conservateur à la margarine allégée. Type de document : texte imprimé Auteurs : Louiza Himed, Auteur ; Malika Barkat, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 142 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Nutrition, Alimentation et Technologies Agro-AlimentairesTags : Huile essentielle Citrus limon Hydrodistillation Pression à froid Pouvoir antioxydant Pouvoir antimicrobien Encapsulation Margarine allégée Essential oil Cold pressure Antioxidant power Antimicrobial power Lightened margarine ??? ????? ??? ???? ????? ??????? ??? ????? ?????????? ????? ????????? ?????? Index. décimale : 640 Industrie Alimentaire Résumé : The main objective of this work is to test the encapsulated essential oils in order to solve the problem of their instability, and apply them in light margarine in order to follow its oxidative stability and to evaluate its acceptability. The essential oils were extracted by hydrodistillation and cold pressing from two varieties of
Citrus limon: Eureka and Lisbon. Recovered oils were analyzed by GC/MS to identify their constituents. As main results obtained, the extraction yield was greater by hydrodistillation than by cold pressure. The composition of the oils extracted was different but it was characterized by a dominance of monoterpenes, followed by oxygenated monoterpenes and then sesquiterpenes and finally oxygenated sesquiterpenes. High levels of limonene were
recorded (61% - 67%). The antioxidant activity of the extracted oils was evaluated by several tests, namely the test for the inhibition of lipid peroxidation (β-carotene bleaching and the β-carotene qualitative test), the free radical scavenging test (DPPH and ABTS+), the test of the reducing power (CUPRAC and FRAP) and finally the test of the chelating power. The results obtained showed an interesting antioxidant power of Eureka oils extracted by cold pressure compared to other oils. On the other hand, the chelating power was less important for all oils compared with EDTA. The antimicrobial power of the oils was evaluated by two tests to determine the susceptibility of the strains and the microbiological parameters CMI, CMB and CMF. The strains tested are of 15, including 9 bacterial strains (2 Gram positive and 7 Gram negative) and 6 fungal strains. The results showed that all strains are sensitive and the oils have interesting antimicrobial properties. The essential oils of the Eureka variety extracted by cold pressing, having the best antioxidant power, were encapsulated in amorphous silica and then characterized by SEM, ATR and TGA and an evaluation of ther antioxidant power. The results showed a significant encapsulation efficiency of 95.87%. No interaction between oils and SiO2 has been reported. On the other hand, a thermogravimetric resistant of the encapsulated oils was noticed compared to the free oils. The antioxidant activity of essential oils was not changed after encapsulation. Three formulas of light margarine were developed: control margarine (CM), free essential oil margarine (FOM) and encapsulated oils margarine (EOM). A physico-chemical characterization, a determination of the resistance to forced oxidation and sensory analysis
were carried out. The results showed that the physico-chemical characteristics of margarines with essential oils are in accordance with the standards and the pre-established recipe and are not different from those of the control. The EOM showed resistance to forced oxidation comparable to that of the control (CM), however the resistance of the FOM is not interesting. The tasters of the three formulas showed a preference of the FOM, then of the EOM and finally of the CM. Therefore it would be interesting to proceed with the industrial formulation
of a lemon essential oil margarine.
Diplôme : Doctorat en sciences En ligne : ../theses/agronomie/HIM7332.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10982 Évaluation des activités biologiques des huiles essentielles du citron (Citrus limon) : encapsulation et application comme agent conservateur à la margarine allégée. [texte imprimé] / Louiza Himed, Auteur ; Malika Barkat, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2018 . - 142 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Nutrition, Alimentation et Technologies Agro-AlimentairesTags : Huile essentielle Citrus limon Hydrodistillation Pression à froid Pouvoir antioxydant Pouvoir antimicrobien Encapsulation Margarine allégée Essential oil Cold pressure Antioxidant power Antimicrobial power Lightened margarine ??? ????? ??? ???? ????? ??????? ??? ????? ?????????? ????? ????????? ?????? Index. décimale : 640 Industrie Alimentaire Résumé : The main objective of this work is to test the encapsulated essential oils in order to solve the problem of their instability, and apply them in light margarine in order to follow its oxidative stability and to evaluate its acceptability. The essential oils were extracted by hydrodistillation and cold pressing from two varieties of
Citrus limon: Eureka and Lisbon. Recovered oils were analyzed by GC/MS to identify their constituents. As main results obtained, the extraction yield was greater by hydrodistillation than by cold pressure. The composition of the oils extracted was different but it was characterized by a dominance of monoterpenes, followed by oxygenated monoterpenes and then sesquiterpenes and finally oxygenated sesquiterpenes. High levels of limonene were
recorded (61% - 67%). The antioxidant activity of the extracted oils was evaluated by several tests, namely the test for the inhibition of lipid peroxidation (β-carotene bleaching and the β-carotene qualitative test), the free radical scavenging test (DPPH and ABTS+), the test of the reducing power (CUPRAC and FRAP) and finally the test of the chelating power. The results obtained showed an interesting antioxidant power of Eureka oils extracted by cold pressure compared to other oils. On the other hand, the chelating power was less important for all oils compared with EDTA. The antimicrobial power of the oils was evaluated by two tests to determine the susceptibility of the strains and the microbiological parameters CMI, CMB and CMF. The strains tested are of 15, including 9 bacterial strains (2 Gram positive and 7 Gram negative) and 6 fungal strains. The results showed that all strains are sensitive and the oils have interesting antimicrobial properties. The essential oils of the Eureka variety extracted by cold pressing, having the best antioxidant power, were encapsulated in amorphous silica and then characterized by SEM, ATR and TGA and an evaluation of ther antioxidant power. The results showed a significant encapsulation efficiency of 95.87%. No interaction between oils and SiO2 has been reported. On the other hand, a thermogravimetric resistant of the encapsulated oils was noticed compared to the free oils. The antioxidant activity of essential oils was not changed after encapsulation. Three formulas of light margarine were developed: control margarine (CM), free essential oil margarine (FOM) and encapsulated oils margarine (EOM). A physico-chemical characterization, a determination of the resistance to forced oxidation and sensory analysis
were carried out. The results showed that the physico-chemical characteristics of margarines with essential oils are in accordance with the standards and the pre-established recipe and are not different from those of the control. The EOM showed resistance to forced oxidation comparable to that of the control (CM), however the resistance of the FOM is not interesting. The tasters of the three formulas showed a preference of the FOM, then of the EOM and finally of the CM. Therefore it would be interesting to proceed with the industrial formulation
of a lemon essential oil margarine.
Diplôme : Doctorat en sciences En ligne : ../theses/agronomie/HIM7332.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10982 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité HIM/7332 HIM/7332 Thèse Bibliothèque principale Thèses Disponible
Titre : Huiles essentielles de trois espèces d’Eucalyptus d’Algérie : composition et activité acaricide (Varroa destructor). Type de document : texte imprimé Auteurs : Ghania Atmani – Merabet, Auteur ; Abdelmalik Belkhiri, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 177 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ChimieTags : Eucalyptus spp huile essentielle toxicité BSL Test CPG/SM Varroa destructor essential oil toxicity GC/MS ????? ??????? ??????? ?????? ??????? ????????? Index. décimale : 540 Chimie et sciences connexes Résumé : The study was aimed to determine the chemical composition, toxicity effect and field
varroacidal efficacy of essential oil from leaf of Eucalyptus robusta (Er), Eucalyptus
sideroxylon (Es) and Eucalyptus globulus (Eg) grown in Algeria. The brine shrimp lethality (BSL) assay and bee hives infected by Varroa destructor were used to assess the toxicity and acaricidal effect, respectively. Steam distillation of (Er), (Es) and (Eg) leaves yielded 0.83%, 1.09 % and 0.93% (v/w) of essential oil (EO) respectively. GC/MS Analysis revealed 13 compounds for (Er), 36 for (Es) and 39 for (Eg). The main constituents for Er EO were 1,8-cineole (65,97%), p-cymene (7,83%) and o-cymene (4,75%), for Es EO 1,8-cineole (20,57%),octane (4.83%) and p-cymene (1,35%), and for Eg EO, 1,8-cineole (78.45 %), o-cymene (2.18 %), and isopinocarveole (1.74 %). The BSL assay of Er EO, Es EO and Eg EO revealed a highly toxic value of LC50 (µg/ml): 9.42, 34.80 and 67.55 respectively. Furthermore, field efficacy testing on bee hives infected with Varroa destructor has confirmed the effectiveness of Eucalyptus robusta essential oil (Er EO), (Es EO) and (Eg EO) and thymol (p < 0, 05) as varroacidal agents. Moreover (EEO + thymol) association was more effective than EEO or thymol alone. Finally the use of (EEO + thymol) may constitute a viable alternative to the thymol based commercial treatment.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/ATM7372.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11022 Huiles essentielles de trois espèces d’Eucalyptus d’Algérie : composition et activité acaricide (Varroa destructor). [texte imprimé] / Ghania Atmani – Merabet, Auteur ; Abdelmalik Belkhiri, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2018 . - 177 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : Eucalyptus spp huile essentielle toxicité BSL Test CPG/SM Varroa destructor essential oil toxicity GC/MS ????? ??????? ??????? ?????? ??????? ????????? Index. décimale : 540 Chimie et sciences connexes Résumé : The study was aimed to determine the chemical composition, toxicity effect and field
varroacidal efficacy of essential oil from leaf of Eucalyptus robusta (Er), Eucalyptus
sideroxylon (Es) and Eucalyptus globulus (Eg) grown in Algeria. The brine shrimp lethality (BSL) assay and bee hives infected by Varroa destructor were used to assess the toxicity and acaricidal effect, respectively. Steam distillation of (Er), (Es) and (Eg) leaves yielded 0.83%, 1.09 % and 0.93% (v/w) of essential oil (EO) respectively. GC/MS Analysis revealed 13 compounds for (Er), 36 for (Es) and 39 for (Eg). The main constituents for Er EO were 1,8-cineole (65,97%), p-cymene (7,83%) and o-cymene (4,75%), for Es EO 1,8-cineole (20,57%),octane (4.83%) and p-cymene (1,35%), and for Eg EO, 1,8-cineole (78.45 %), o-cymene (2.18 %), and isopinocarveole (1.74 %). The BSL assay of Er EO, Es EO and Eg EO revealed a highly toxic value of LC50 (µg/ml): 9.42, 34.80 and 67.55 respectively. Furthermore, field efficacy testing on bee hives infected with Varroa destructor has confirmed the effectiveness of Eucalyptus robusta essential oil (Er EO), (Es EO) and (Eg EO) and thymol (p < 0, 05) as varroacidal agents. Moreover (EEO + thymol) association was more effective than EEO or thymol alone. Finally the use of (EEO + thymol) may constitute a viable alternative to the thymol based commercial treatment.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/ATM7372.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11022 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité ATM/7372 ATM/7372 Thèse Bibliothèque principale Thèses Disponible
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