000 02809cam a2200349 a 4500
003 EG-GiCUC
005 20250223032303.0
008 190519s2018 ua do f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.08.07.M.Sc.2018.Ya.P
100 0 _aYasmine Farid Ahmed Abdelall
245 1 2 _aA pharmacognostical Study of cymbopogon citratus (DC.) stapf :
_bFamily poaceae, cultivated in Egypt /
_cYasmine Farid Ahmed Abdelall ; Supervised Elsayeda A. Elkashoury , Meselhy R. Meselhy , Mouchira A. Choucry
246 1 5 _aدراسة عقاقيرية لنبات سيمبوبوجن سيتراتس (دس.) ستاف :
_bالعائلة النجيلية: المزروع فى مصر
260 _aCairo :
_bYasmine Farid Ahmed Abdelall ,
_c2018
300 _a314 P. :
_bcharts , photographs ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Pharmacy - Department of Pharmacognosy
520 _aCymbopogon is one of the largest genera in family poaceae. It is indigenous to tropical and sub-tropical regions of Asia, Africa and America. Cymbopogon citratus is one of the most important essential oil-bearing species of the genus. A botanical study of C. citratus leaves, culm, rhizome and roots was carried out. Phytochemical study of the leaves was performed including preliminary phytochemical screening, proximate analysis, UPLC-HRMS profiling of the secondary metabolites, quantitative estimation of the total phenolic and flavonoid contents, as well as investigation of the lipoidal composition. A biologically guided study of the leaf extracts revealed the prevalence of the ethanolic extract over the aqueous as neuroprotective in-vivo against AlCl3-induced alzheimer's disease through regression of the hallmark proteins, as well as oxidative stress and inflammatory mediators. Moreover, the Diaion 50% methanol fraction of the ethanolic extract was found the most active in-vitro both as antioxidant and acetylcholinesterase inhibitor. Chemical investigation of this fraction led, for the first time, to the isolation of luteolin-7-O-neohesperidoside and isoschaftoside from genus Cymbopogon, besides isoorientin and luteolin-7-O-glucoside. HPLC standardization of the active fraction was performed using the major detected phenolic acids and flavones as chemical markers
530 _aIssued also as CD
653 4 _aAlzheimer's disease
653 4 _aBotanical study
653 4 _aCymbopogon citratus
700 0 _aElsayeda Ahmed Elkashoury ,
_eSupervisor
700 0 _aMeselhy Ragab Meselhy ,
_eSupervisor
700 0 _aMouchira Ali Choucry ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c72030
_d72030