Differences in antioxidant components and activity of 5 crabapples( Malus) leaf tea

The phenolic compounds and antioxidant activity of 5 kinds of tea from the leaves of crabapple were determined using High Performance Liquid Chromatography( HPLC),DPPH· and ABTS+· radical scavenging methods.The sensory evaluations of crabapples leaf tea were assayed by GB / T23776-2009 methods. The results indicated that the total phenols ranged from( 69.32 ± 2.16) to( 89.54 ± 1.14) mg / g,and the highest was Malus‘Snow Drift',while the lowest was Malus‘Sparkler'.Phenolic compounds mainly were gallic acid,procyanidinB2,phlorizin,chlorogenic acid,rutinum,quercitrin,Cyanidin-3-galactoside,in which the highest content was phlorizin.The tea antioxidant capacity of Malus hupehensis,Malus ‘Snow Drift ',Malus ‘Royalty ' leaf were significantly higher than the Malus‘Strawberry Parfait',Malus‘Sparkler'leaf tea in all three methods.Compared with the traditional Malus hupehensis leaf tea,Malus‘Royalty',Malus‘Snow Drift'leaf tea had uninformed color,stronger aroma resistant smell,better mellow taste,tea astringent and overall quality. All the results showed that Malus‘Royalty'and Malus‘Snow Drift'had great potential in antioxidant ability and being new healthy leaf tea in future.