Document Type : Original Article
                            
                        
                                                    Authors
                            
                                                            
                                                                        Desert Research Center, Matarla, Cairo                                
                            
                                                                            
                        
                        
                            Abstract
                            The preliminary phytochemical screening of Euphorbia showei:f that the 
 plant contained sterols, tannins, resins, flavonoid, sulphates, reducing sugars, 
 saponin, carbohydrate and/or glycosides, chlorides and alkaloid. he paper 
 chromatography investigation of free sugars showed that E. para lias contained 
 arabinose, xylose, maltose, glucose and sucrose in the leaves and ste s at winter 
 and summer,beside rafinose in the leaves at both seasons, fructose in the eaves and 
 stems at winter and cellobisoe in the stems at both seasons.while it present in the 
 leaves at summer only.
Meanwhile, the chromatographic investigatioin of combined suga s revealed 
 the presence of arabinose, rafinose, xylose, maltose, glucose in the leaves and stems 
 at winter and summer, beside fructose in the leaves and stems at winter and 
 cellobiose in the stems at both seasons, while it present in the leaves at surpmer only.
The obtained Amino Acid Analyzer showed the presence of free amino acids; 
 aspartic, therionine, serine, glutamic, proline, glycine. alanine, valine, isolucine, lucine, 
 tyrosine. phenylalanine, histidine, ammonia and arginine in the leaves and stems at 
 both seasons • beside lysine in the leaves and stems at summer. The data of protein 
 amino acids hydrolysate revealed the presence of fifteen amino acid withldifferent of 
 concentrations at both winter and summer.
The total lipids and the fundamental chemical properties of lipidS of E. 
 para/ias were detennlned. It was Obvious from the obtained G.L.C. res?lts that the 
 unsaponified matter of leaves and stems at winter and summer contained 10 
 hydrocarbons, beside cholesterol, P,sitosterol and stigmaster91. G.L.C. 
 chromatograms of the saponified matter revealed the presence of the salUrated falty 
 acids caproic. caprylic, capric, lauric. myristic. palmitic, stearic and arachidic acid 
 beside the unsaturated fatty acids, palmitoleic, oliee, linoleic, linolenic an~ eicosenoic 
 acid in the leaves and stems at winter and summer. palmitoleic acid i the stems 
 atsummer. While arachidic acid was defected in the leaves at summer and in stems at 
 winter .beside erucic acid in the leaves at winter stems at summer as saturated. The 
 results revealed marked qualitative and quantitative difference in t e chemical 
 constituents of the leaves and stems of E para/ias at winter and summer seasons.
                        
                        
                        
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