Analysis of volatile components in Wuyi narcissus tea by different extracted methods

-The volatile components of Wuyi narcissus tea were extracted by simultaneous distillation extraction (SDE) , static headspace (SHS) , solid-phase micro-extraction (SPME) and analyzed by GC-MS with retention index comparison.The results showed that 179 compounds were extracted by the three methods, including 121 compounds extracted by SDE, 114 compounds extracted by SPME and 61 compounds extracted by SHS.21 common compounds were extracted by three methods, 72 common compounds were extracted by SDE and SPME, 37 common compounds were extracted by SPME and SHS, and 25 common compounds were extracted by SDE and SHS.Compared with SPME methods, there were more identified compounds including 5alcohols, 6 hydrocarbons, 2 acids, 1 phenol, 1 ester and 1 quinone, and less compounds including 2 heterocyclics, 4 aldehydes, 1 aromatic hydrocarbons and 2 olefins compound extracted by SDE. The results showed that there were favorable for the identification of tea quality by the combined methods of SDE and SPME.One hundred and sixty-two volatile components were identified from Wuyi narcissus tea by the two methods.The smell of fruity, floral, woody, nutty, roasty, spicy caramelic were the typical ordor.