Characterisation of volatile components of Lotus leaves by HS-SPME and SDE coupled to GC-MS

The volatile flavor components of lotus leaves were extracted by solid phase microextraction ( SPME) , simultaneous distillation extraction ( SDE) , which was analyzed by gas chromatography-mass spectrometry ( GC-MS) .Solid phase microextraction ( SPME) of three extraction heads ( CAR/PDMS, DVB/CAR/PDMS, PDMS/DVB) and simultaneous distillation extraction ( SDE) were used to compare qualitative results. The results showed that there were 97 kinds of volatile components identified by SDE and the percent of total peak area was 94.86% and the major compound was alkane, there were 29 kinds of volatile components identified by SPME ( CAR/PDMS) and the percent of total peak area was 89.26% and the major compound was ketone, there were 62 kinds of volatile components identified by SPME ( DVB/CAR/PDMS) and the percent of total peak area was 85.97% and the major compound was aldehyde, there were 59 kinds of volatile components identified by SPME ( PDMS/DVB) and the percent of total peak area was 86.96% and the major compound was aldehyde.This showed that the most kind of Volatile components can be obtained by SDE, followed by SPME ( DVB/CAR/PDMS) 、SPME ( PDMS/DVB) 、SPME ( CAR/PDMS) .