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Partager le résultat de cette recherche Interroger des sources externesEtude phytochimique, biologique et activité anticorrosion de trois plantes médicinales Algériennes appartenant aux familles Plumbaginaceae, Tamaricaceae et Apiaceae. / Mostefa Lefahal
Titre : Etude phytochimique, biologique et activité anticorrosion de trois plantes médicinales Algériennes appartenant aux familles Plumbaginaceae, Tamaricaceae et Apiaceae. Type de document : texte imprimé Auteurs : Mostefa Lefahal, Auteur ; Salah Akkal, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2014 Importance : 137 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles Langues : Français (fre) Catégories : Français - Anglais
ChimieTags : Plumbaginaceae Tamaricaceae Flavonoids anticorrosion Activities Apiaceae Flavonoïdes Activité anticorrosion Index. décimale : 540 Chimie et sciences connexes Résumé : The present work deals with the phytochemical and biological studies as well as the corrosion inhibition activities of different Algerian medicinal plants of three familiesnamely the Plumbaginaceae, Tamaricaceae and Apiaceae.
From these plants were isolated 7 new flavonoids the structures of which were determined byspectroscopic techniques (UV, 1H-RMN, 13C-RMN).
The Biological study involves the antimicrobial activities of butanol extract and two of the isolated flavonoids from Tamarix gallica and the antiradical activity of the extracts as well as four isolated compounds.
The corrosion inhibition effect of Limonium thouinii ethyl acetate extract on C steel in 1 M HCl by has been investigated using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy measurements.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/LEF6456.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9492 Etude phytochimique, biologique et activité anticorrosion de trois plantes médicinales Algériennes appartenant aux familles Plumbaginaceae, Tamaricaceae et Apiaceae. [texte imprimé] / Mostefa Lefahal, Auteur ; Salah Akkal, Directeur de thèse . - constantine (Route ain el bey, Algérie) : Université Constantine 1, 2014 . - 137 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : Plumbaginaceae Tamaricaceae Flavonoids anticorrosion Activities Apiaceae Flavonoïdes Activité anticorrosion Index. décimale : 540 Chimie et sciences connexes Résumé : The present work deals with the phytochemical and biological studies as well as the corrosion inhibition activities of different Algerian medicinal plants of three familiesnamely the Plumbaginaceae, Tamaricaceae and Apiaceae.
From these plants were isolated 7 new flavonoids the structures of which were determined byspectroscopic techniques (UV, 1H-RMN, 13C-RMN).
The Biological study involves the antimicrobial activities of butanol extract and two of the isolated flavonoids from Tamarix gallica and the antiradical activity of the extracts as well as four isolated compounds.
The corrosion inhibition effect of Limonium thouinii ethyl acetate extract on C steel in 1 M HCl by has been investigated using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy measurements.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/LEF6456.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9492 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité LEF/6456 LEF/6456 Thèse Bibliothèque principale Thèses Disponible Documents numériques
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Titre : Etude phytochimique et biologique des espèces Chrysanthemum segetum L. (Asteraceae) et Limonium pruinosum (L.) Chaz. (Plumbaginaceae). Type de document : texte imprimé Auteurs : Samira Kennouche, Auteur ; Ali Bentamene, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2017 Importance : 199 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ChimieTags : Astéraceae Plumbaginaceae Chrysanthemum Limonium phytochimique flavonoïdes coumarines spectroscopiques antioxydante phytochemical flavonoids coumarins spectroscopic antioxidant ??????? ????????? ?????????????? ??????????? ???? ??????? Index. décimale : 540 Chimie et sciences connexes Résumé : This work was devoted to the phytochemical and biological studies of two plants species belonging to the Asteraceae family (Chrysanthemum segetum L.) and Plumbaginaceae family (Limonium pruinosum L.).
The phytochemical study of the chloroform extract, of aerial parts of Crysanthemum segetum has allowed us to isolate and identify seven compounds, three polyacetylenes, a flavonoid, two sterols and an aromatic ester. Six of them were isolated for the first time from this species.
Analysis of ethyl acetate and n-butanol extracts of Chrysanthemum segetum by the UHPLCMS technique enabled us to propose the molecular structures of twenty-seven phenolic compounds present in these extracts, the major part of these compounds are flavonoids and coumarins.
In the phytochemical study of ethyl acetate and n-butanol extracts of Limonium pruinosum species, five compounds were identified: two flavonoids, an aromatic ester, a cyclitol and a methylglucoside. These compounds have been described for the first time in this species.
The structures of the compounds have been elucidated mainly by the use of spectroscopic techniques, NMR 1-D and 2-D, UV-Vis, mass spectrometry and comparison with literature data.
In the biological part of our work, the antioxidant capacity of ethyl acetate extract and the flavonoids isolated of Limonium pruinosum species was evaluated in vitro by DPPH test, the ethyl acetate extract showed an interesting antioxidant activity compared to standard.
The antioxidant activities of crude extracts of Chrysanthemum segetum species were evaluated by using two methods, DPPH radical scavenging activity and the CUPRAC method, the results showed that the ethyl acetate extract had the highest activity compared to the other extracts tested.Diplôme : Doctorat en sciences En ligne : ../theses/chimie/KEN7010.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10378 Etude phytochimique et biologique des espèces Chrysanthemum segetum L. (Asteraceae) et Limonium pruinosum (L.) Chaz. (Plumbaginaceae). [texte imprimé] / Samira Kennouche, Auteur ; Ali Bentamene, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2017 . - 199 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : Astéraceae Plumbaginaceae Chrysanthemum Limonium phytochimique flavonoïdes coumarines spectroscopiques antioxydante phytochemical flavonoids coumarins spectroscopic antioxidant ??????? ????????? ?????????????? ??????????? ???? ??????? Index. décimale : 540 Chimie et sciences connexes Résumé : This work was devoted to the phytochemical and biological studies of two plants species belonging to the Asteraceae family (Chrysanthemum segetum L.) and Plumbaginaceae family (Limonium pruinosum L.).
The phytochemical study of the chloroform extract, of aerial parts of Crysanthemum segetum has allowed us to isolate and identify seven compounds, three polyacetylenes, a flavonoid, two sterols and an aromatic ester. Six of them were isolated for the first time from this species.
Analysis of ethyl acetate and n-butanol extracts of Chrysanthemum segetum by the UHPLCMS technique enabled us to propose the molecular structures of twenty-seven phenolic compounds present in these extracts, the major part of these compounds are flavonoids and coumarins.
In the phytochemical study of ethyl acetate and n-butanol extracts of Limonium pruinosum species, five compounds were identified: two flavonoids, an aromatic ester, a cyclitol and a methylglucoside. These compounds have been described for the first time in this species.
The structures of the compounds have been elucidated mainly by the use of spectroscopic techniques, NMR 1-D and 2-D, UV-Vis, mass spectrometry and comparison with literature data.
In the biological part of our work, the antioxidant capacity of ethyl acetate extract and the flavonoids isolated of Limonium pruinosum species was evaluated in vitro by DPPH test, the ethyl acetate extract showed an interesting antioxidant activity compared to standard.
The antioxidant activities of crude extracts of Chrysanthemum segetum species were evaluated by using two methods, DPPH radical scavenging activity and the CUPRAC method, the results showed that the ethyl acetate extract had the highest activity compared to the other extracts tested.Diplôme : Doctorat en sciences En ligne : ../theses/chimie/KEN7010.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10378 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité KEN/7010 KEN/7010 Thèse Bibliothèque principale Thèses Disponible
Titre : "بحث و تحديد مركبات الأيض الثانوي للنبتتين Limonium duriusculum Genista aspalathoides (وPlumbaginaceae)) (Fabaceaeو تحديد الفعالية المضادة لأأكسدة" Type de document : texte imprimé Auteurs : مسعود كركاطو, Auteur ; فضيلة بن عياش, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2017 Importance : 340 ورقة. Format : 30 سم. Note générale : 2نسخ موجودة مكتبة المركزية
Langues : Arabe (ara) Catégories : Arabe
الكيمياء و العلوم ذات العلاقةTags : Plumbaginaceae Limonium duriusculium Fabaceae Genista aspalathoides
ssp aspalathoides Flavonoids duriusculin A duriusculin B.Index. décimale : 540 الكيمياء و العلوم ذات العلاقة Résumé : is work is devoted to the phytochemical study of the two species Limonium duriusculium ( de Girard ) Kuntze, belongs to the Plumbaginaceae family and Genista aspalathoides ssp. aspalathoides belongs
to the Fabaceae family, and antioxidant activity of the butanolic phase of the two species.
Different methods of extraction, separation and purification of the aerial parts of the two species, led to the isolation of 13 products.
Three isoflavones are new for the species, from which two are mjor , have been isolated from Genista aspalathoides ssp. Aspalathoides.
Ten products are new for the species, from which two are new for the first time from a natural source, two are major, have been isolated from Limonium duriusculium ( de Girard ) Kuntze.
.Structures of those subtances we re established by diffent spectroscopic methods : mass spectrometry , UV ,1H NMR , 13C NMR and 2D NMR experiments (COSY , HSQC , HMBC , REOSY).
The resutats of the test on the antioxidant activity were satisfactory. This work is crowned by two publications in two international reviews.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/AKER4306.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10830 "بحث و تحديد مركبات الأيض الثانوي للنبتتين Limonium duriusculum Genista aspalathoides (وPlumbaginaceae)) (Fabaceaeو تحديد الفعالية المضادة لأأكسدة" [texte imprimé] / مسعود كركاطو, Auteur ; فضيلة بن عياش, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2017 . - 340 ورقة. ; 30 سم.
2نسخ موجودة مكتبة المركزية
Langues : Arabe (ara)
Catégories : Arabe
الكيمياء و العلوم ذات العلاقةTags : Plumbaginaceae Limonium duriusculium Fabaceae Genista aspalathoides
ssp aspalathoides Flavonoids duriusculin A duriusculin B.Index. décimale : 540 الكيمياء و العلوم ذات العلاقة Résumé : is work is devoted to the phytochemical study of the two species Limonium duriusculium ( de Girard ) Kuntze, belongs to the Plumbaginaceae family and Genista aspalathoides ssp. aspalathoides belongs
to the Fabaceae family, and antioxidant activity of the butanolic phase of the two species.
Different methods of extraction, separation and purification of the aerial parts of the two species, led to the isolation of 13 products.
Three isoflavones are new for the species, from which two are mjor , have been isolated from Genista aspalathoides ssp. Aspalathoides.
Ten products are new for the species, from which two are new for the first time from a natural source, two are major, have been isolated from Limonium duriusculium ( de Girard ) Kuntze.
.Structures of those subtances we re established by diffent spectroscopic methods : mass spectrometry , UV ,1H NMR , 13C NMR and 2D NMR experiments (COSY , HSQC , HMBC , REOSY).
The resutats of the test on the antioxidant activity were satisfactory. This work is crowned by two publications in two international reviews.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/AKER4306.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10830 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité كرك/4206 كرك/4206 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude phytochimique et biologique d'espèces végétales africaines : Euphorbia stenoclada Baill . (Euphorbiaceae) , Anogeissus leiocarpus Guill. &Perr. (Combrettacceae) , Limoniastrum feei (Girard) Batt. (Plumbagnaceae) Type de document : texte imprimé Auteurs : Mehdi Chaabi ; Université Mentouri, Editeur scientifique ; A. Lobstein, Directeur de thèse Année de publication : 2008 Importance : 256 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 : Euphorbiaceae Combretaceae Plumbaginaceae Index. décimale : 540 Chimie et sciences connexes En ligne : ../theses/chimie/CHA5184.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=3684 Etude phytochimique et biologique d'espèces végétales africaines : Euphorbia stenoclada Baill . (Euphorbiaceae) , Anogeissus leiocarpus Guill. &Perr. (Combrettacceae) , Limoniastrum feei (Girard) Batt. (Plumbagnaceae) [texte imprimé] / Mehdi Chaabi ; Université Mentouri, Editeur scientifique ; A. Lobstein, Directeur de thèse . - 2008 . - 256 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 : Euphorbiaceae Combretaceae Plumbaginaceae Index. décimale : 540 Chimie et sciences connexes En ligne : ../theses/chimie/CHA5184.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=3684 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité CHA/5184 CHA/5184 Thèse Bibliothèque principale Thèses Disponible
