Characterization of key aroma compounds in Laobaigan Chinese Baijiu by GC×GC‐TOF/MS and means of molecular sensory science

芳香 化学 风味 气味 质谱法 气相色谱-质谱法 食品科学 色谱法 芳香化合物 有机化学
作者
Quli Fan,Xinlei Wang,Yuefeng Zhao,Fuping Zheng,Hehe Li,Fuyan Zhang,Yuhang Zhang,Feng Chen
出处
期刊:Flavour and Fragrance Journal [Wiley]
卷期号:34 (6): 514-525 被引量:27
标识
DOI:10.1002/ffj.3533
摘要

Abstract Laobaigan ( LBG ) Baijiu is recognized as one of the famous Chinese liquors due to its unique flavor characteristics. However, its key aroma‐active volatiles are still unknown. In this study, 414 volatile chemicals in the LBG Baijiu were initially detected by comprehensive two‐dimensional gas chromatography‐time‐of‐flight mass spectrometry ( GC × GC ‐ TOF / MS ). Then, 52 of them were determined by sample dilution analysis ( SDA ) for screen of aroma‐active compounds. Based on their odor–activity values ( OAV s) that were determined by the external standard method performed on the GC × GC ‐ TOF / MS , 32 volatile compounds were further recognized as important odorants, which were reconstituted to simulate and validate the aroma profile of the LBG Baijiu. Moreover, omission experiments were conducted to corroborate the importance of key odorants. As a result, nine aroma compounds were finally confirmed as the key aroma‐active compounds of the LBG Baijiu.
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