Title: | "Characterization of Key Aroma Compounds in Beijing Roasted Duck by Gas Chromatography-Olfactometry-Mass Spectrometry, Odor-Activity Values, and Aroma-Recombination Experiments" |
Author(s): | Liu H; Wang Z; Zhang D; Shen Q; Pan T; Hui T; Ma J; |
Address: | "Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing , Ministry of Agriculture and Rural Affairs , Beijing 100193 , PR China. College of Food Science and Technology , Hunan Agricultural University , Changsha , Hunan 410128 , PR China" |
ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
Abstract: | "The dominant aroma compounds in the breast skin and breast muscle of Beijing roasted duck were investigated by gas chromatography-olfactometry-mass spectrometry (GC-O-MS), odor-activity values, and aroma recombination. The results demonstrated that a total of 42 aroma compounds were identified in Beijing roasted duck, including aldehydes, ketones, alcohols, acids, phenols, sulfur-containing compounds, and nitrogen-containing compounds. Among the 42 aroma compounds, 18 were identified as important odorants with odor-activity values (OAVs) greater than 1. Aroma-recombination-omission experiments and sensory evaluation demonstrated that nine aroma compounds significantly contributed to the characteristic aroma of Beijing roasted duck. These nine key aroma compounds were 2-furfurylthiol, dimethyl trisulfide, hexanal, heptanal, octanal, nonanal, methional, 1-octen-3-ol, and ( E, E)-2,4-decadienal. Among these, 2-furfurylthiol (3620 = OAV = 31?ª+606) and dimethyl trisulfide (2515 = OAV = 23?ª+470) significantly contributed to the aroma of roasted duck ( p < 0.01). Sensory evaluation of the recombination model with the nine aroma compounds scored 4.5 out of 5 points. The major aroma profile of Beijing roasted duck included strong fatty, roasty, and meaty aromas. The key aroma compounds of Beijing roasted duck were concluded to be 2-furfurylthiol, dimethyl trisulfide, hexanal, heptanal, octanal, nonanal, methional, 1-octen-3-ol, and ( E, E)-2,4-decadienal" |
Keywords: | Adult Animals Cooking Ducks Female Flavoring Agents/chemistry Gas Chromatography-Mass Spectrometry Humans Male Middle Aged Odorants/*analysis Olfactometry Smell Volatile Organic Compounds/*chemistry Young Adult Beijing roasted duck Gc-o-ms OAVs key aroma; |
Notes: | "MedlineLiu, Huan Wang, Zhenyu Zhang, Dequan Shen, Qingwu Pan, Teng Hui, Teng Ma, Jianrong eng 2019/05/03 J Agric Food Chem. 2019 May 22; 67(20):5847-5856. doi: 10.1021/acs.jafc.9b01564. Epub 2019 May 9" |