利用顶空固相微萃取(SPME)结合气相色谱-质谱(GC-MS)技术提取贵人香、霞多丽和雷司令3种酿酒白葡萄中的挥发性的香气化合物,对其中36种化合物进行定性定量。其中2-乙基-3-甲氧基吡嗪在国产白葡萄中属首次检测到。通过显著性差异分析比较3种酿酒白葡萄品种中的挥发性成分差异,发现己醛、β-蒎烯、p-伞花烃、1-己醇、顺-3-己烯-1-醇、糠醛、2-乙基-1-己醇、4-萜品醇、苯乙醛和1,1,6-三甲基-1,2,-二氢萘(TDN)是不同品种间具有显著性差异的成分。

Three white grape varieties were investigated using headspace solid phase microextraction( HS-SPME)combined with gas chromatography-mass spectrometry( GC-MS),wherein 36 volatile compounds were detected qualitatively and quantitatively. These data were analyzed by One-way-ANOVA and discriminate analysis( DA). Statistical analysis showed that 10 compounds had significant differences,including hexanal,β-pinene,p-cymene,1-hexanol,cis-3-hexen-1-ol, furfural, 2-ethyl-1-hexanol, 4-terpineol, phenylacetaldehyde, and 1,1,6-trimethyl-1,2-dihydronaphthalene( TDN). Meanwhile,the compound 2-ethyl-3-methoxypyrazine was first detected in Chinese grape.