Menoufia University, Faculty of AgricultureMenoufia Journal of Agricultural Biotechnology2357-07686120210201CHEMICAL CHARACTERIZATION OF CICHORIUM INTYBUS AND PORTULACA OLERACEA VARIETY GROWN IN EGYPT11015547710.21608/mjab.2021.155477ENS. A. El- KodosyDepartment of Agricultural Biochemistry, Faculty of Agriculture, Menoufia University, EgyptSh. N. DrazDepartment of Agricultural Biochemistry, Faculty of Agriculture, Menoufia University, EgyptSamia M. KhalilDepartment of Agricultural Biochemistry, Faculty of Agriculture, Menoufia University, EgyptSh. R. MosaMinistry of Health and PopulationJournal Article20210310<strong>The present study was designed to determine the phytochemical constituents </strong><strong>of</strong><strong> <em>Cichorium intybus and </em></strong>Portulaca oleracea and<strong> evaluate</strong><strong> the antioxidant activity of their </strong><strong>methanolic extract. </strong><strong>It was found that </strong><strong><em>Cichorium intybus and </em></strong><strong><em>Portulaca oleracea</em></strong><strong>contained total ash 6.08 and 7.12%, crude lipid 0.63 and 0.54%, crude protein 3.94 and 4.09%, crude fiber 9.0 and 8.34%, and total carbohydrates 80.33 and 79.91%, respectively</strong><strong>. Total phenolics in the <em>Cichorium intybus </em>were 172.9 mg/g while total flavonoids were 139.4 mg/g. On the other hand, total phenolics and total flavonoids were 163.12 and 125.71 mg/g for <em>Portulaca oleracea.</em> </strong><strong>HPLC analysis of </strong><strong><em>Cichorium intybus </em></strong><strong>and</strong><strong><em>Portulaca oleracea</em></strong><strong>showed the presence of 17 and 20 phenolic compounds, </strong><strong>respectively. catechin, caffeic acid, and rutin acid were found in high levels in the <em>Cichorium intybus</em> and their amounts were 2926.598, 1268.448, and 509.948 mg/100g dw respectively. On the other hand, ferulic acid, caffeic acid, <em>p-</em>hydroxybenzoic acid and catechin were found to be in high levels in </strong><strong><em>Portulaca oleracea</em></strong><strong> and their amounts, which were 300.628, 203.678, 55.685 and 38.424 mg/100g dry weight, respectively. The obtained results also showed that the methanolic extract of Egyptian <em>Cichorium intybus</em> has the highest antioxidant activity, this may be due to their high amount of total phenolics and flavonoids.</strong>Menoufia University, Faculty of AgricultureMenoufia Journal of Agricultural Biotechnology2357-07686120210201A COMPARATIVE STUDY BETWEEN GREEN TEA (CAMELLIA SINENSIS) AND COMMON SAGE (SALVIA OFFICINALIS) (CHEMICAL COMPOSITION AND ACTIVE COMPOUNDS)112116912110.21608/mjab.2021.169121ENS.N. DrazAgriculture biochemistry department, Faculty of Agriculture, Menoufia UniversityA.M.F. AliAgriculture biochemistry department, Faculty of Agriculture, Menoufia UniversityK.E. HusseinAgriculture biochemistry department, Faculty of Agriculture, Menoufia UniversityA.K.S. AfifiAgriculture biochemistry department, Faculty of Agriculture, Menoufia UniversityJournal Article20210505<strong>The purpose of this research is to study the chemical composition and effective compounds of leaves of green tea and sage as one of the traditional medicinal plants. It was found that green tea leaves collected from the local market contain 5.68 % moisture, 2.35% ash, 14.57 % protein, 8.55 % lipids, and 2.3% crude fiber. While sage leaves contained 8.19, 2.17, 12.21, 3.33, and 2.6 % moisture, ash, protein, lipids, and crude fiber, respectively. It was also found that green tea leaves contain 0.376 % Polyphenols and 0.188 % Flavonoids, while sage leaves contain 0.262 and 0.132 % Polyphenols and Flavonoids, respectively. HPLC showed that the aqueous extract of green tea leaves contains eighteen compounds of Polyphenols, fifteen compounds of them were identified. While the aqueous extract of sage leaves contains twenty-one compounds, nineteen of them were identified</strong><strong>.</strong>