Research on Scenting Process Innovation and Antioxidant Capacity of Plum Blossom Tea
In order to obtain the best scenting technology of plum blossom tea and increase the added value of plum blossom,research was conducted to develop different varieties of plum blossom tea using Prunus mume'Jiang Mei',Prunus mume f.purpurea T.Y.Chen,Prunus mume f.viridicalyx(Makino)T.Y.Chen and Yuhua Tea as the main raw materials.The optimum scenting conditions of different varieties of plum blossom tea were obtained by orthogonal test,and the chemical components of the optimized plum blossom tea quality,antioxidant properties,in vitro lipid-lowering ability were analyzed.The results showed that the optimum scenting conditions of Prunus mume'Jiang Mei'tea were as follows:opening degree 80％,flower weight percentage 1∶5,scenting 3 times;The optimum scenting conditions of Prunus mume f.purpurea T.Y.Chen tea were:opening degree 80％,flower weight percentage 1∶5,scenting 1 times;The optimum scenting conditions of Prunus mume f.viridicalyx(Makino)T.Y.Chen tea were as follows:opening degree 20％,flower weight percentage 1:3,scenting 3 times.Under the optimal scenting condition,the results showed that the reducing power were 1.63-1.75,1,1-diphenyl-2-picrylhydrazyl(DPPH)radical scavenging rate were 92.64％-94.03％,2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid)(ABTS)radical cation scavenging rate were 98.62％-99.80％,hydroxyl radical scavenging rate were 76.90％-84.84％,nitrite scavenging rate were 47.31％-54.62％,nitroamine synthesis blocking rate were 34.90％-42.55％.The results of in vitro lipid-lowering experiments showed that the combination rate of taurocholate and glycocholate were 71.31％-85.09％and 26.12％-89.65％.The plum blossom tea prepared by this process has good antioxidant activity and lipid-lowering ability in vitro,which can provide theoretical basis and technical guidance for scenting technology of scented tea.
plum blossom teascenting processantioxidant capacitylowering blood lipids in vitro
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