Comparison of aroma-active compounds in broiler broth and native chicken broth by aroma extract dilution analysis (AEDA), odor activity value (OAV) and omission experiment
Comparison of aroma-active compounds in broiler broth and native chicken broth by aroma extract dilution analysis (AEDA), odor activity value (OAV) and omission experiment
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通过香气提取物稀释分析（AEDA）、气味活性值（OAV）和遗漏实验比较肉鸡汤和原鸡汤中的香气活性化合物
DOI：
10.1016/j.foodchem.2018.05.043
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发表时间：
2018-11-01
期刊：
影响因子：
8.8
通讯作者：
Zhao, Mouming
中科院分区：
文献类型：
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作者：
Feng, Yunzi;Cai, Yu;Zhao, Mouming
采用气相色谱-嗅觉/质谱（GC-O/MS）联用技术，对肉鸡肉汤（BB）和土鸡肉汤（NCB）的香气进行分析。与BB相比，NCB含有更复杂的挥发物，并表现出更丰富的芳香族特征。香气提取物稀释分析的结果表明，（E，E）-2，4-癸二烯醛是两种肉汤中具有最高风味稀释（FD）因子的增香剂。NCB中10种气味物质的FD因子均大于BB，杏仁、柑橘、蔬菜、黄瓜和甜味等13种气味物质仅在NCB中发现。此外，16种香气化合物的平均气味活性值（OAV）大于1，其中（E，Z）-2，4-癸二烯醛（OAV（BB）= 181，OAV（NCB）= 1067），（E，E）-2，4-癸二烯醛（OAV（BB）= 175，OAV（NCB）= 1065），（E，E）-2，4-壬二烯醛（OAV（BB）= 28，OAV（NCB）= 169），和（E）-2-壬烯醛（OAV（BB）= 39，OAV（NCB）= 120）表现出最高值。省略试验证实了二烯醛对鸡汤整体香气的重要性;然而，单独省略（E，E）-2，4-癸二烯醛或（E，E）-2，4-壬二烯醛不会导致显著的香气变化。
Two types of chicken broth, broiler broth (BB) and native chicken broth (NCB), were used to analyse their differences in aroma by gas chromatography-olfactometry/mass spectrometry (GC-O/MS). NCB contained more complex volatiles and exhibited a richer aromatic profile compared with BB. Results from aroma extract dilution analysis showed that (E,E)-2,4-decadienal was the odorant with highest flavour dilution (FD) factor in both broths. The FD factors of 10 odorants in NCB were greater than those in BB, and 13 odorants with almond, citrus, vegetable, cucumber and sweet smells were only found in NCB. Moreover, 16 aroma compounds had average odor activity values (OAVs) greater than 1, among which (E,Z)-2,4-decadienal (OAV(BB) = 181, OAV(NCB) = 1067), (E, E)-2,4-decadienal (OAV(BB) = 175, OAV(NCB) = 1065), (E, E)-2,4-nonadienal (OAV(BB) = 28, OAV(NCB) = 169), and (E)-2-nonenal (OAV(BB) = 39, OAV(NCB) = 120) exhibited the highest values. Omission tests corroborated the importance of dienals to the overall aroma of chicken broth; nevertheless, omitting either (E, E)-2,4-decadienal or (E, E)-2,4-nonadienal individually did not result in significant aroma change.