Dalia Mohamed Rasheed <br/><br/>
A Phytochemical Study of Certain Egyptian Plants with Antioxidant Activity /  
 دراسة فيتوكيميائية لبعض النباتات المصرية التى لها تأثير مضاد للأكسدة 
Dalia Mohamed Rasheed ; Supervised Kamilia Foli Taha , Nebal Darwish El Tanbouly , Hala El Hefnawy 
 - Cairo :   Dalia Mohamed Rasheed ,   2006 
 - 136P :   ill ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty Of Pharmacy - Department Of Pharmacognosy 
<br/><br/> These extracts were tested in vivo on lipid peroxidation in ethanol - CCl4 induced liver toxicity model EtOAc fraction of these two extracts was proved to be responsible for the antioxidant activity by DPPH assay , and it was further purified via polyamide , cellulose and sephadex LH - 20 column chromatography Antioxidant compounds were isolated and identified through spectroscopic methods as (quercitrin) and (isoquercitrin) in Pgraveolens extract , (reynoutrin) , (rutin) and gallic acid in C siliqua extract Furthermore , standardization of both plant extracts was carried out by determination of the total polyphenol content using Folin - Ciocalteu colorimetric method Total flavonoid content was determined by spectrophotometric and HPLC methods 
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<br/><br/><label>Subjects--Index Terms: </label>Antioxidant Activity Phytochemical