The 15 kindsofD ouchiw ith regionalrepresentation w ere chosen in the test,to determ ine the totalacid content,the hydrolysisdegree,solu-ble protein content,acid soluble protein content,brow ning index,totalantioxidantcapacity and otherindicators.The sam ples w ere evaluated by de-scriptive analysis com bined w ith principalcom ponentanalysis and clusteranalysis.The results show ed thatthere w ere the significantdifferences in quality indicatorsbetw een each kind ofD ouchisam ples.The sam plesfrom centralsouth region w ere betterthan thatfrom the southw est;in the aspect ofthe acid soluble pro...