Détail de l'auteur
Auteur رتيبة مكيو |
Documents disponibles écrits par cet auteur (3)
Affiner la recherche Interroger des sources externesاستخلاص، فصل وتحديد بنى نواتج الأيض الثانوي الفلافونيدي وتركيب الزيوت الأساسية لنباتات من الجنس ((Fabaceae) Genista / كوثر شباح
Titre : استخلاص، فصل وتحديد بنى نواتج الأيض الثانوي الفلافونيدي وتركيب الزيوت الأساسية لنباتات من الجنس ((Fabaceae) Genista Type de document : texte imprimé Auteurs : كوثر شباح, Auteur ; رتيبة مكيو, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2017 Importance : 193 ورقة. Format : 30 سم. Note générale : 2نسخ موجودة مكتبة المركزية
Langues : Arabe (ara) Catégories : Arabe
القانونTags : Fabaceae Genista cephalantha Spach. Genista ulicina Spach. Genista quadriflora Munby Genista cinerea ssp. ramosissima phytochemical
screening antioxidant activity essential oils Genista cephalantha Spach Genista ulicina Spach Genista
quadriflora Munby composés flavonoiques activité
antioxydante huiles essentielles Genista quadriflora ،Genista ulicina Spach. ،Genista cephalantha Spachbyو ،Genista cinerea ssp. ramosissimaالعائلة البقولية، دراسة أوليّة، دراسة فيتو كيميائية، فحصبيولوجي، الزيت الأساسيIndex. décimale : 340 القانون Résumé : The principal aim of the present work consisted to identify the secondary metabolites of
four species Genista cephalantha Spach.,Genista ulicina Spach., Genista quadriflora
Munby and Genista cinerea ssp. ramosissima belonging to the Fabaceae family.
This study began with a preliminary phytochemical screening by using the classic
methods, the analysis by HPLC-UV followed by a quantification of phenolic and
flavonoid content by colorimetric methods and finally the evaluation of antioxidant
activity of both species (Genista cephalantha Spach. and Genista ulicina Spach.) by
measuring their ability to scavenge a stable DPPH free radical and by β-
Carotene/linoleic acid bleaching assay. The obtained results showed a wealth of both
species in flavonoids and isoflavonoids and a good antioxidant activity. These results
gave rise to two international publications.
The extracts of these two plants were subjected to separation and purification
methods, based on chromatographic techniques.Ten compounds were isolated
from the aerial parts of Genista cephalantha and three compounds from Genista
ulicina. All isolated compounds were identified by spectroscopic analysis,
especially 1D and 2D NMR spectroscopy (1H-NMR, 13C-NMR, DEPT 90,
DEPT135, COSY, HMQC, HMBC), UV spectrophotometry aswelle as Mass
Spectrometry (ESI(-)).
The analyses of essential oil of G. quadriflora et G. cinerea ssp. ramosissima by
GC and GC/MS led the identification of forty four (44) compounds from G.
quadrifloraMunby, with7,10,13-Hexadecatrienal (13.38%) as main compound,
and fifty seven (57) compounds from the essential oil of G.
cinereassp. ramosissima with phthalate (20.15%) as main compound.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/ACHE4239.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10445 استخلاص، فصل وتحديد بنى نواتج الأيض الثانوي الفلافونيدي وتركيب الزيوت الأساسية لنباتات من الجنس ((Fabaceae) Genista [texte imprimé] / كوثر شباح, Auteur ; رتيبة مكيو, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2017 . - 193 ورقة. ; 30 سم.
2نسخ موجودة مكتبة المركزية
Langues : Arabe (ara)
Catégories : Arabe
القانونTags : Fabaceae Genista cephalantha Spach. Genista ulicina Spach. Genista quadriflora Munby Genista cinerea ssp. ramosissima phytochemical
screening antioxidant activity essential oils Genista cephalantha Spach Genista ulicina Spach Genista
quadriflora Munby composés flavonoiques activité
antioxydante huiles essentielles Genista quadriflora ،Genista ulicina Spach. ،Genista cephalantha Spachbyو ،Genista cinerea ssp. ramosissimaالعائلة البقولية، دراسة أوليّة، دراسة فيتو كيميائية، فحصبيولوجي، الزيت الأساسيIndex. décimale : 340 القانون Résumé : The principal aim of the present work consisted to identify the secondary metabolites of
four species Genista cephalantha Spach.,Genista ulicina Spach., Genista quadriflora
Munby and Genista cinerea ssp. ramosissima belonging to the Fabaceae family.
This study began with a preliminary phytochemical screening by using the classic
methods, the analysis by HPLC-UV followed by a quantification of phenolic and
flavonoid content by colorimetric methods and finally the evaluation of antioxidant
activity of both species (Genista cephalantha Spach. and Genista ulicina Spach.) by
measuring their ability to scavenge a stable DPPH free radical and by β-
Carotene/linoleic acid bleaching assay. The obtained results showed a wealth of both
species in flavonoids and isoflavonoids and a good antioxidant activity. These results
gave rise to two international publications.
The extracts of these two plants were subjected to separation and purification
methods, based on chromatographic techniques.Ten compounds were isolated
from the aerial parts of Genista cephalantha and three compounds from Genista
ulicina. All isolated compounds were identified by spectroscopic analysis,
especially 1D and 2D NMR spectroscopy (1H-NMR, 13C-NMR, DEPT 90,
DEPT135, COSY, HMQC, HMBC), UV spectrophotometry aswelle as Mass
Spectrometry (ESI(-)).
The analyses of essential oil of G. quadriflora et G. cinerea ssp. ramosissima by
GC and GC/MS led the identification of forty four (44) compounds from G.
quadrifloraMunby, with7,10,13-Hexadecatrienal (13.38%) as main compound,
and fifty seven (57) compounds from the essential oil of G.
cinereassp. ramosissima with phthalate (20.15%) as main compound.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/ACHE4239.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10445 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité شبا/4239 شبا/4239 Thèse Bibliothèque principale Thèses Disponible
Titre : بحث وتحديد نواتج الايض الثانوي لنبات القات Catha edulis من العائلة (Celastraceae) ونبات البوليكاريا Pulicaria jaubertii من العائلة(Asteraceae) وتقييم الفعالية البيولوجية Type de document : texte imprimé Auteurs : ميثاق الجبر ; جامعة منتوري, Éditeur scientifique ; رتيبة مكيو, Directeur de thèse Année de publication : 2010 Importance : 178 ورقة Format : 30 سم Note générale : 02 نسخ موجودة في مخزن المكتبة المركزية+01 قرص مضغوط Langues : Arabe (ara) Catégories : Arabe
الكيمياء و العلوم ذات العلاقةTags : نواتج الايض الثانوي نبات القات Catha edulis العائلة (Celastraceae) نبات البوليكاريا Pulicaria jaubertii العائلة(Asteraceae) تقييم الفعالية البيولوجية Index. décimale : 540 الكيمياء و العلوم ذات العلاقة En ligne : ../theses/chimie/AALD3145.pdf Permalink : index.php?lvl=notice_display&id=6543 بحث وتحديد نواتج الايض الثانوي لنبات القات Catha edulis من العائلة (Celastraceae) ونبات البوليكاريا Pulicaria jaubertii من العائلة(Asteraceae) وتقييم الفعالية البيولوجية [texte imprimé] / ميثاق الجبر ; جامعة منتوري, Éditeur scientifique ; رتيبة مكيو, Directeur de thèse . - 2010 . - 178 ورقة ; 30 سم.
02 نسخ موجودة في مخزن المكتبة المركزية+01 قرص مضغوط
Langues : Arabe (ara)
Catégories : Arabe
الكيمياء و العلوم ذات العلاقةTags : نواتج الايض الثانوي نبات القات Catha edulis العائلة (Celastraceae) نبات البوليكاريا Pulicaria jaubertii العائلة(Asteraceae) تقييم الفعالية البيولوجية Index. décimale : 540 الكيمياء و العلوم ذات العلاقة En ligne : ../theses/chimie/AALD3145.pdf Permalink : index.php?lvl=notice_display&id=6543 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité الج/3145 الج/3145 Thèse Bibliothèque principale Thèses Disponible
Titre : فصل وتحديد بنى نواتج الأيض الثانوي لنبتتين صحراويتين Warionia saharae وPeriploca laevigata. Type de document : texte imprimé Auteurs : سامية مزهود, Auteur ; رتيبة مكيو, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2017 Importance : 187 ورقة. Format : 30 سم. Note générale : 2نسخ موجودة مكتبة المركزية
Langues : Arabe (ara) Catégories : Arabe
الكيمياء و العلوم ذات العلاقةTags : الكومارينات الفلافونويدات أحماض الفينولية الفعالية المضادة للأكسدة الزيوت الأساسية (.
Warionia scharae Coss. & Dur. Periploca laevigata Aiton coumarins flavonoïds, phenolic acids antioxidant activity GC-MS essential oil coumarines flavonoïdes acides phénoliques activité antioxydante GC/MS huiles essentiellesIndex. décimale : 540 الكيمياء و العلوم ذات العلاقة Résumé : This work is devoted to the phytochemical and biological study of two Saharan species used in traditional medicine, the first Warionia saharae (Asteraceae), the second Periploca laevigata belonging to Asclepiadaceae family.
The phytochemical investigation of chloroform, ethyl acetate and n-butanol extracts from the aerial parts of W. saharae allowed the isolation and identification of 13 products belonging to several classes of secondary metabolites (sterols, coumarins, flavonoids and dicaffeoylquinic acid) isolated for the first time from this species excepted one flavonoid (hispidulin). The nbutanol extract of P. laevigata allowed the isolation and identification of 4 flavonoids glycosides. The structural elucidation of the isolated compounds was carried out by combining the various spectroscopic methods (UV, 1D & 2D NMR, ESIMS), acid hydrolysis as well as by comparing the results with the literature data.
The antioxidant activity of the EtOAc extract of W. saharae was evaluated by the free radical
scavenging method (DPPH) and the inhibition of lipid peroxidation (LPO). The EtOAc extract exhibited a strong effect with the IC50 value )6,90 ± 8,0 µg/ml( compared to the standard ) 3, 5 µ 8,21 μg/ml) and the inhibition of lipid peroxidation ) 2 ,9 µ8,6 ± g/ml(. The quantification of the total polyphenols and total flavonoids of the EtOAc and n-BuOH extracts of P. laevigata was performed by colorimetric methods. This step showed a content of polyphenols and flavonoids more important in the n-butanol extract. The antioxidant activity was evaluated by the free radical scavenging method (DPPH). The n-BuOH extract exhibited the strongest effect with the IC50 value 5,9 μg/ml comparatively with ascorbic acid used as standard IC50 (IC50 = 4,65 μg/ml) utilisé comme.
The analysis of essential oil of leaves and flowers of W. saharae by the GC/MS technique, showed a different chemical composition when compared with author works. are described for the first time. De même, the analysis of the essential oil of the aerial parts of P. laevigata by GC/MS, showed a different chemical composition.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/AMEZ4318.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10876 فصل وتحديد بنى نواتج الأيض الثانوي لنبتتين صحراويتين Warionia saharae وPeriploca laevigata. [texte imprimé] / سامية مزهود, Auteur ; رتيبة مكيو, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2017 . - 187 ورقة. ; 30 سم.
2نسخ موجودة مكتبة المركزية
Langues : Arabe (ara)
Catégories : Arabe
الكيمياء و العلوم ذات العلاقةTags : الكومارينات الفلافونويدات أحماض الفينولية الفعالية المضادة للأكسدة الزيوت الأساسية (.
Warionia scharae Coss. & Dur. Periploca laevigata Aiton coumarins flavonoïds, phenolic acids antioxidant activity GC-MS essential oil coumarines flavonoïdes acides phénoliques activité antioxydante GC/MS huiles essentiellesIndex. décimale : 540 الكيمياء و العلوم ذات العلاقة Résumé : This work is devoted to the phytochemical and biological study of two Saharan species used in traditional medicine, the first Warionia saharae (Asteraceae), the second Periploca laevigata belonging to Asclepiadaceae family.
The phytochemical investigation of chloroform, ethyl acetate and n-butanol extracts from the aerial parts of W. saharae allowed the isolation and identification of 13 products belonging to several classes of secondary metabolites (sterols, coumarins, flavonoids and dicaffeoylquinic acid) isolated for the first time from this species excepted one flavonoid (hispidulin). The nbutanol extract of P. laevigata allowed the isolation and identification of 4 flavonoids glycosides. The structural elucidation of the isolated compounds was carried out by combining the various spectroscopic methods (UV, 1D & 2D NMR, ESIMS), acid hydrolysis as well as by comparing the results with the literature data.
The antioxidant activity of the EtOAc extract of W. saharae was evaluated by the free radical
scavenging method (DPPH) and the inhibition of lipid peroxidation (LPO). The EtOAc extract exhibited a strong effect with the IC50 value )6,90 ± 8,0 µg/ml( compared to the standard ) 3, 5 µ 8,21 μg/ml) and the inhibition of lipid peroxidation ) 2 ,9 µ8,6 ± g/ml(. The quantification of the total polyphenols and total flavonoids of the EtOAc and n-BuOH extracts of P. laevigata was performed by colorimetric methods. This step showed a content of polyphenols and flavonoids more important in the n-butanol extract. The antioxidant activity was evaluated by the free radical scavenging method (DPPH). The n-BuOH extract exhibited the strongest effect with the IC50 value 5,9 μg/ml comparatively with ascorbic acid used as standard IC50 (IC50 = 4,65 μg/ml) utilisé comme.
The analysis of essential oil of leaves and flowers of W. saharae by the GC/MS technique, showed a different chemical composition when compared with author works. are described for the first time. De même, the analysis of the essential oil of the aerial parts of P. laevigata by GC/MS, showed a different chemical composition.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/AMEZ4318.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10876 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité مزه/4318 مزه/4318 Thèse Bibliothèque principale Thèses Disponible
