会东块菌香气成分的GC-MS分析

采用超声溶剂萃取、同时蒸馏萃取、固相微萃取3种方法对会东块菌香气进行提取后，用气相色谱-质谱联用(GC-MS)法结合计算机检索对其进行成分分析和鉴定。结果表明：采用超声溶剂萃取法的萃取物中共分离出80个峰，鉴定出65种化合物，占总组分的93.59%；用同时蒸馏萃取法的萃取物中共分离出了91个峰，鉴定出了67种化合物，占总组分的90.45%；用固相微萃取法的萃取物中共分离出64个峰，鉴定出50种化合物，占总组分的75.15%；综合比较，采用3种方法共分离鉴定出142种香气物质，其中主要香气物质23种，3种提取方法中同时蒸馏萃取法效果最优。

Aroma Compound Analysis of Tuber huidongense by GC-MS

Three different sample pretreatment methods, namely ultrasonic-assisted solvent extraction (UASE), simultaneous distillation and extraction (SDE), solid-phase micro-extraction (SPME) were used to analyze the composition of aroma compounds of Tuber huidongense by GC-MS. USAE extraction resulted in 80 separated peaks, of which 67 were identified, accounting for 93.59% of the total extract. The number of separated peaks in SDE-derived extract was 97, including 67 identified compounds, representing 90.45% of the total extract. A total of 64 peaks were separated in the chromatogram of SPME-derived extract and 50 of them were identified, accounting for 75.15% of the total extract. The total number of aroma compounds extracted by the three methods was 142, including 23 major aroma compounds. Overall, SDE was the best method among them.