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J Agric Food Chem

Title:		"Characterization of Potent Aroma Compounds in Preserved Egg Yolk by Gas Chromatography-Olfactometry, Quantitative Measurements, and Odor Activity Value"
Author(s):		Zhang Y; Liu Y; Yang W; Huang J; Liu Y; Huang M; Sun B; Li C;
Address:
Journal Title:		J Agric Food Chem
Year:		2018
Volume:		20180611
Issue:		24
Page Number:		6132 - 6141
DOI:		10.1021/acs.jafc.8b01378
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"To characterize potent odor-active compounds in preserved egg yolk (PEY), volatile compounds were isolated by headspace solid-phase microextraction and solvent-assisted flavor evaporation. Gas chromatography-olfactometry (GC-O) and gas chromatography-mass spectrometry (GC-MS) analyses identified a total of 53 odor-active compounds by comparing the odor characteristics, MS data, and retention indices with those of reference compounds. Twenty-seven odorants were detected in at least five isolates that were extracted and analyzed by the same method, and their flavor dilution (FD) factors, ranging from 1 to 2048, were measured by aroma extract dilution analysis (AEDA). To further determine their contribution to the overall aroma profile of PEY, 22 odorants with FD factors >/=16 and GC-MS responses were quantitated, and their odor activity values (OAVs) were calculated. According to the OAV results, 19 odorants with OAVs >/= 1 are the potent odorants that greatly contribute to the characteristic aroma of PEY. Nine compounds were identified for the first time: (E,Z)-2,6-nonadienal, (E)-2-nonenal, 2-methylbutanal, dimethyl disulfide, trimethylamine, methional, dimethyl trisulfide, diisopropyl disulfide, and diethyl disulfide"
Keywords:		Adult Animals Chickens Egg Yolk/*chemistry Eggs/analysis Female Flavoring Agents/chemistry Food Preservation Gas Chromatography-Mass Spectrometry Humans Male Middle Aged Odorants/analysis Olfactometry Smell Volatile Organic Compounds/*chemistry Young Adul;
Notes:		"MedlineZhang, Yu Liu, Yuping Yang, Wenxi Huang, Jia Liu, Yingqiao Huang, Mingquan Sun, Baoguo Li, Changlin eng 2018/05/24 J Agric Food Chem. 2018 Jun 20; 66(24):6132-6141. doi: 10.1021/acs.jafc.8b01378. Epub 2018 Jun 11"