顶空固相微萃取-气相色谱质谱-嗅闻法测定不同品牌红腐乳挥发性风味物质
发布时间：2018-12-07 14:39
【摘要】：采用顶空固相微萃取法,结合气质联用技术、气相色谱-嗅闻-质谱技术对不同品牌大块红腐乳的挥发性风味成分进行了分析及比较。在顶空固相微萃取条件优化的基础上,确定了最佳实验条件:2g样品置于20mL顶空瓶中,50℃下平衡30min,萃取时间40min。通过实验共鉴定出64种挥发性成分,其中酯类19种、萜烯类19种、醇类7种、醛类6种、酮类4种、烯烃类3种、酚类2种、杂环化合物2种、烃类2种。腐乳共有挥发性风味成分23种,其中乙醇、α-水芹烯、乙酸乙酯、丁酸乙酯、辛酸乙酯、2-戊基呋喃和茴香脑为主要挥发性风味物质。
[Abstract]:The volatile flavor components of different brands of red curd were analyzed and compared by headspace solid phase microextraction (SPME) combined with GC-MS and gas chromatography-sniffing mass spectrometry (GC-MS). On the basis of optimization of headspace solid-phase microextraction conditions, the optimum experimental conditions were determined: 2g sample was placed in 20mL headspace bottle, equilibrium was 30 min at 50 鈩，
本文编号：2367352
[Abstract]:The volatile flavor components of different brands of red curd were analyzed and compared by headspace solid phase microextraction (SPME) combined with GC-MS and gas chromatography-sniffing mass spectrometry (GC-MS). On the basis of optimization of headspace solid-phase microextraction conditions, the optimum experimental conditions were determined: 2g sample was placed in 20mL headspace bottle, equilibrium was 30 min at 50 鈩，
本文编号：2367352
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