Optimization of Extraction Technology for Tibetan Medicine Duoxuekang by Uniform Design
	    		
		   		
		   			
		   		
	    	
    	 
    	10.6039/j.issn.1001-0408.2017.10.17
   		
        
        	
        		- VernacularTitle:均匀设计法优化藏药多血康提取工艺
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Xiumei LYU
			        		
			        		;
		        		
		        		
		        		
			        		Jing WANG
			        		
			        		;
		        		
		        		
		        		
			        		Kehui ZHAO
			        		
			        		;
		        		
		        		
		        		
			        		Jing ZHANG
			        		
			        		;
		        		
		        		
		        		
			        		Xianrong LAI
			        		
			        		;
		        		
		        		
		        		
			        		Gang FAN
			        		
			        		;
		        		
		        		
		        		
			        		Yi ZHANG
			        		
			        		;
		        		
		        		
		        		
			        		Zangjia GENG
			        		
			        		
		        		
		        		
		        		
		        		
		        		
			        		
			        		
		        		
	        		
        		 
        	
        	
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Tibetan medicine;
			        		
			        		
			        		
				        		Duoxuekang;
			        		
			        		
			        		
				        		Uniform design;
			        		
			        		
			        		
				        		Salidroside;
			        		
			        		
			        		
				        		Gallic acid;
			        		
			        		
			        		
				        		Content;
			        		
			        		
			        		
				        		Extraction;
			        		
			        		
			        		
				        		Technology opti-mization
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			China Pharmacy
	            		
	            		 2017;28(10):1361-1364
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	OBJECTIVE:To optimize the extraction technology of Duoxuekang. METHODS:Using comprehensive score of salidroside,gallic acid content and extraction yield as indexes,U6(63)uniform design was designed to optimize the liquid-solid ra-tio,ethanol volume fraction and extraction time of Duoxuekang,then optimize extraction times,and verification test was conduct-ed. RESULTS:The optimal extraction technology was as follows as 50% ethanol,liquid-solid ratio of 1:14,soaking time of 1.5 h,reflux extraction for 1 h and repeated twice;the average extraction yield in 3 tests was 50.18%,contents of salidroside and gal-lic acid were 1.82 mg/g,16.54 mg/g (RSD≤0.84%,n=3). CONCLUSIONS:The optimized extraction technology for Duox-uekang is reasonable,simple and feasible.