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J Agric Food Chem

Title:		"Evaluation of the Perceptual Interaction among Ester Odorants and Nonvolatile Organic Acids in Baijiu by GC-MS, GC-O, Odor Threshold, and Sensory Analysis"
Author(s):		Wang G; Jing S; Wang X; Zheng F; Li H; Sun B; Li Z;
Address:		"Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, China. Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, China. Hebei Hengshui Laobaigan Liquor Co. Ltd., Hengshui, Hebei 053000, China"
Journal Title:		J Agric Food Chem
Year:		2022
Volume:		20221021
Issue:		43
Page Number:		13987 - 13995
DOI:		10.1021/acs.jafc.2c04321
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"By applying the aroma extract dilution analysis, 13 esters were found to have high FD factors in the Laobaigan flavor type of Baijiu. These were then quantified using GC-MS. In addition, 35 nonvolatile organic acids were quantified by a derivatization method combined with GC-MS. The perceptual interactions of lactic acid and ethyl lactate and that of lactic acid and ethyl acetate were studied through the olfactory threshold. The S curve was used to evaluate the changes in the olfactory thresholds. After adding lactic acid (1142, 20?ª+000, and 53?ª+703 mg/L), the olfactory thresholds of ethyl lactate (1000, 724, and 295 mg/L) and ethyl acetate (398, 324, and 257 mg/L) decreased obviously, which revealed that lactic acid gave additive or synergistic odor effects for the two esters. Furthermore, it was discovered that as the concentrations of lactic acid increased, the extent of the interaction among these compounds was also greater in the mixture"
Keywords:		*Odorants/analysis Gas Chromatography-Mass Spectrometry/methods Esters/analysis *Volatile Organic Compounds/analysis Lactic Acid/analysis Olfactometry/methods aroma intensity ester compounds organic acids perceptual interaction;
Notes:		"MedlineWang, Guangnan Jing, Si Wang, Xinlei Zheng, Fuping Li, Hehe Sun, Baoguo Li, Zexia eng 2022/10/22 J Agric Food Chem. 2022 Nov 2; 70(43):13987-13995. doi: 10.1021/acs.jafc.2c04321. Epub 2022 Oct 21"