Comparative Analysis on Aroma Components of Kenya Black Tea and Yunnan Black Tea

The aroma compositions of five kinds of Kenya black tea have been extracted by SPME,and analyzed by GC-MS.152 kinds of aromatic components have been detected in the samples.Among them,59 kinds of aromatic components have been detected in NO.1,66 kinds of aromatic components have been detected in NO.2,52 kinds of aromatic components have been detected in NO.3,61 kinds of aromatic components have been detected in NO.4,and 63 kinds of aromatic components have been detected in NO.5,58 kinds of aromatic components have been detected in Yunnan black tea.Yunnan black tea,NO.1,NO.5 and NO.3 teas have the highest relative content of alcohol compounds,accounted for 60.71%,50.76%,47.33% and 37.13% of the total aroma compositions..NO.2 and NO.4 tea have the highest relative content of aldehyde,accounted for 42.52% and 36.57% of the total aroma compositions.The Aroma indexes(F1) from high to low are NO.1,NO.5,Yunnan black tea,NO.3,NO.2 and NO.4 tea samples.