采用顶空固相微萃取(HS-SPME)与气相色谱-质谱(GC-MS)联用的方法,对泸州老窖50年窖龄窖池中窖壁与窖底窖泥中的挥发性物质进行检测和分析。结果表明,窖泥中共检测到以酯类、醇类、酸类、醛酮类及酚类化合物为主的65种挥发性化合物。窖壁窖泥与窖底窖泥中的醇类、醛酮类以及酚类化合物差异不大,而酸类与酯类化合物无论在种类还是数量上均存在显著差异,其中己酸、己酸丁酯、己酸己酯是窖壁窖泥中的主要特征成分,而窖底窖泥中则含有丰富的己酸甲酯。

The volatile constituents in the pit muds from different parts of Luzhou Laojiao cellar with 50 years were detected and analyzed.Gas chromatograph-mass spectrum(GC-MS) coupled with head-space solid phase microextraction(HS-SPME) were employed.65 volatile compounds were identified,mainly were esters,alcohols,acids,aldehydes,ketones and phenols.There were only small differences in the compounds of alcohol,aldehyde,ketone and phenol between the cellar wall mud and the bottom cellar mud,while significant discrepancies in acids and easters.Hexanoic acid,butyl hexanoate and hexyl hexanoate were the characteristic components in the cellar wall mud,while methyl caproate in the bottom cellar mud.