Identification of Aroma-Active Compounds in Jiashi Muskmelon Juice by GC-O-MS and OAV Calculation
Identification of Aroma-Active Compounds in Jiashi Muskmelon Juice by GC-O-MS and OAV Calculation
复制标题
DOI：
10.1021/jf300149m
复制
发表时间：
2012-05-02
影响因子：
6.1
通讯作者：
Wu, Jihong
中科院分区：
文献类型：
--
作者：
Pang, Xueli;Guo, Xingfeng;Wu, Jihong
采用气相色谱-质谱-嗅觉测定法（GC-MS-O）对伽师瓜汁中的挥发性物质进行了定性和定量分析，并计算了其气味活性值（OAV）。结果表明，共鉴定出42种挥发性物质，其中碳酸二乙酯、异佛尔酮、乙酸2-丁氧基乙酯和薄荷醇4种化合物为首次鉴定或初步鉴定。十二种化合物，即（2 E，6 Z）-壬-2，6-二烯醛、（3 Z，6 Z）-壬-3，6-二烯-1-醇、丁酸乙酯、2-甲基丁酸乙酯、2-甲基丙酸乙酯、（Z）-壬-6-烯醛、（E）-2-壬烯醛、庚醛、2-甲基丁酸甲酯、壬醛、己醛和乙酸2-甲基丙酯，通过OAV和检测频率分析（DFA），确定了7种气味物质为伽师瓜汁的强气味物质，此外，所有小组成员都检测到了7种气味物质，表明DFA和OAV导致了相对相似的伽师甜瓜香气模式。
To identify aromatic compounds in Jiashi melon juice, gas chromatography-mass spectrometry-olfactometry (GC-MS-O) analysis was used Odor activity values (OAVs) were also calculated on the basis of the qualitative and quantitative analysis Of volatile compounds. Results showed that 42 volatiles were identified, among which 4 compounds, namely, diethyl carbonate, isophorone, 2-butoxyethyl acetate, and menthol, were identified or tentatively identified for the first time as volatiles in melon fruit. Twelve compounds, namely, (2E,6Z)-nona-2,6-dienal, (3Z,6Z)-nona-3,6-dien-1-ol, ethyl butanoate, ethyl 2-methylbutyrate, ethyl 2-methylpropanoate, (Z)-non-6-enal, (E) -2-nonenal, heptanal, methyl 2-methylbutyrate, nonanal, hexanal, and 2-methylpropyl acetate, were identified as the potent odorants of Jiashi melon juice by both OAV and detection frequency analysis (DFA), In addition, seven odorants were detected by all of the panelists and showed higher OAVs, indicating that DFA and OAV resulted in relatively similar "Jiashi" melon aroma patterns.