Phytochemical Screening, Antioxidant Activity and Total Phenols of ?Sonchus Oleraceus Asteraceae? and ?Ruta Graveolens? from Libya

Abstract: This study includes phytochemical screening, antioxidant activity, and total phenols whither qualitative and quantitive analysis of primary and secondary metabolites such as carbohydrates, tannin, flavonoids and phenol from "Sonchus Oleraceus Asteraceae" and "Ruta Graveolens" leaves. The results of qualitative phytochemical screening and the quantities revealing that the chemical constituents in the crude plant extracts (Methanolic and chloroform) show the presence of flavonoids, alkaloids, tannins, cardiac glycosides, and phenols were not present in the methanolic extracts, while saponins, Alkaloids, Cardiac glycosides, Carbohydrates, saponins, Phenols were not present in the chloroform extract of "Sonchus Oleraceus Asteraceae", and presence of flavonoids, alkaloids, tannins, cardiac glycosides, Carbohydrates and phenols in the methanolic crude extract of "Ruta Graveolens" while chloroform crude extract revealing the presence of Tannin, flavonoid and phenols. The quantitative analysis of the plants leaves "Sonchus Oleraceus Asteraceae" for alkaloids, flavonoids and saponins were 17, 10 and 12 % respectively. Whereas the percentage yield for methanolic and aqueous extracts 15 and 4% correspondingly. And the quantitative analysis of the "Ruta graveolens? for alkaloids, flavonoids and saponins were 14, 7 and 3 % respectively. While the percentage yield for methanolic and aqueous extracts were 16 and %5 correspondingly. The total phenols of methanol and chloroform crude extract concentrations in "Sonchus Oleraceus Asteraceae" were more than the concentration of phenol in the "Ruta graveolens" (3.34mg/g) also note that the concentration of phenols in methanol extract was more than the concentration of phenols in chloroform extract.