椴木木耳和袋栽木耳挥发性成分及特征风味物质比较分析

Comparative Analysis of Volatile Components and Key Flavor Compounds of Basswood and Bagging Auricularia auricula

本文采用顶空固相微萃取分别提取椴木木耳、袋栽木耳的挥发性成分,采用GC-MS分析样品的挥发性成分组成,采用相对气味活度值(ROAV)判定特征风味物质,并对椴木、袋栽木耳的特征风味物质进行了比较。结果表明,从椴木木耳中检出45种挥发性成分,主要是醇类、酸类、醛类化合物,相对含量最高的是乙酸,占比14.57%。从袋栽木耳中检出46种挥发性成分,主要是醇类、酸类、醛类化合物,相对含量最高的是正十四烷,占比8.63%。采用ROAV法进行评价,椴木木耳的关键风味物质包括1-辛烯-3-醇、正己醛、壬醛、正庚醛、正戊醛、1-庚醇、正己醇,共7种。袋栽木耳的特征风味物质包括1-辛烯-3-醇、正己醛、正庚酸、1-壬醇、正戊醛、1-辛醇,共6种。

In this paper,the volatile components of basswood and bagging Auricularia auricula were extracted by headspace solid phase microextraction (HS-SPME),and were analyzed by GC-MS,and the key flavor substances were determined by relative odor activity value (ROAV).45 volatile components were detected from the basswood Auricularia auricula,and mainly were alcohols,acids and aldehydes,and the highest relative content was acetic acid,accounting for 14.57% of all volatile components.46 volatile components were found in bagging Auricularia auricula and mainly components were as basswood Auricularia auricula,and the highest relative content was fourteen alkane,accounting for 8.63% of all volatile components.The ROAV method was used to evaluate the 7 kinds of key flavor substances of basswood Auricularia auricula including 1-octyl-3-alcohol,hexaldehyde,naldehyde,heptanal,valeraldehyde,1-heptanol and hexanol. There were 6 kinds of key flavoring substances of bagging Auricularia polytricha including 1-octyl-3-alcohol,hexaldehyde,heptanic acid,1-nonyl alcohol,positive aldehyde and 1-octanol.