基于AEDA和OAV值确定西瓜汁香气活性化合物的比较  

Identification of Aroma-active Compounds in Watermelon Juice by AEDA and OAV Calculation

作　　者：何聪聪[1] 苏柯冉 刘梦雅[1] 刘建彬[1] 刘野[1] 宋焕禄[1] 

机构地区：[1]北京工商大学食品学院,北京市食品风味化学重点实验室/食品添加剂与配料北京高校工程研究中心,北京100048

出　　处：《现代食品科技》2014年第7期279-285,共7页Modern Food Science and Technology

基　　金：国家自然科学基金项目(31201400);北京市委组织部优秀人才项目(2011D005003000007)

摘　　要：本研究采用溶剂辅助风味蒸发提取西瓜汁的香气成分,利用气相色谱-质谱联用结合嗅闻仪定性定量分析其香气活性化合物,共鉴定出49种化合物,主要是小分子的酮、醛、硫醚等物质,酯类物质中只检测到一种物质,即乙酸乙酯,且浓度较低。本研究首次检测到醚类物质。OAV计算和AEDA两种方法共同鉴定出11中物质,顺,顺-3,6-壬二烯醛、顺-3-壬烯-1-醇、反,顺-3,6-壬烯-1-醇、反-2-壬烯醛、壬醛、1-壬醇、2-戊基呋喃、己醛、辛醛、顺-6-壬烯醛、反-2-辛烯醛。其中有五种香气活性物质,即顺,顺-3,6-壬二烯醛、顺-3-壬烯-1-醇、顺-6-壬烯醛、顺-2-壬烯醛、反,顺-3,6-壬烯-1-醇都能被实验员嗅闻到,且具有较高的OAV值。这表明,AEDA和OAV计算在西瓜汁香气活性化合物分析上具有一定的相似性。Solvent assisted flavor evaporation and gas chromatography-mass spectrometry-olfactometry（GC-O-MS） were used in this study to identify aromatic compounds in watermelon juice. Forty-nine volatiles were identified, most of which were low molecular weight alcohols, aldehydes and sulfur-containing compounds. There was only one ester that detected in melon juice, considered as ethyl acetate with low concentration. Sulfur-containing compounds were identified for the first time as aroma compounds in watermelon. Eleven compounds, namely（Z）-3-Nonen-1-ol,（Z, Z）-3,6-nonadienal,（E,Z）-3,6-noandienol,（E）-2-nonenal, nonanal, 1-nonanol, 2-pentylfuran, hexanal, Octanal,（Z）-6-nonenal and（E）-2-octenal, were identified as the potent odorants in watermelon juice by both odor active value（OAV） and aroma extract dilution analysis（AEDA）. In addition, five odorants including（Z）-3-Nonen-1-ol,（Z, Z）-3, 6-nonadienal,（E, Z）-3, 6-noandienol,（Z）-6-nonenal,（Z）-2-nonenal were detected by all of the panelists and showed higher OAVs, indicating that AEDA and OAV resulted in relatively similar watermelon aroma patterns.

关 键 词：西瓜汁 香气活性化合物 气相色谱-嗅闻-质谱联用仪 香气活性值 香气稀释分析 

分 类 号：TS255.44[轻工技术与工程—农产品加工及贮藏工程] O657.63[轻工技术与工程—食品科学与工程]