Separation and Identification of Flavonoids from Fistular Onion Stalk(Allium fisturosum L.var.Caespitosum Makio)
	    		
		   		
		   			
		   		
	    	
    	 
    	10.1007/s11596-010-0224-z
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		FU QINQIN
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		LIU JINGYOU
			        		
			        		;
		        		
		        		
		        		
			        		ZHANG CHANGGONG
			        		
			        		;
		        		
		        		
		        		
			        		ZHOU YINBO
			        		
			        		;
		        		
		        		
		        		
			        		ZHANG GENG
			        		
			        		;
		        		
		        		
		        		
			        		MA DAN
			        		
			        		;
		        		
		        		
		        		
			        		YANG XINZHOU
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Pharmacognosy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
			        		
		        		
	        		
        		 
        	
        	
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		fistular onion stalk;
			        		
			        		
			        		
				        		allium fisturosum;
			        		
			        		
			        		
				        		supercritical CO2 extraction;
			        		
			        		
			        		
				        		chemical constituents;
			        		
			        		
			        		
				        		flavonoids
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Journal of Huazhong University of Science and Technology (Medical Sciences)
	            		
	            		 2010;30(2):255-257
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	The chemical constituents of fistular onion stalk obtained by supercritical CO2 extraction were separated and purified by silica gel and sephadex LH-20 gel column chromatography and the preparative TLC method and four flavonoids were obtained.On the basis of the spectral data,they were structurally identified as(+)-catechin,(-)-epicatechin,astragalin,and 3-O-β-D(2-O-β-D-glucopyranosyl)-glucopyranosides of kaempferol.