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J Dairy Sci

Title:		"Evaluation of the perceptual interaction among key aroma compounds in milk fan by gas chromatography-olfactometry, odor threshold, and sensory analyses"
Author(s):		Tian H; Xu X; Sun X; Chen C; Yu H;
Address:		"Department of Food Science and Technology, Shanghai Institute of Technology, Shanghai 201418, China. Department of Food Science and Technology, Shanghai Institute of Technology, Shanghai 201418, China. Electronic address: hyyu@sit.edu.cn"
Journal Title:		J Dairy Sci
Year:		2020
Volume:		20200521
Issue:		7
Page Number:		5863 - 5873
DOI:		10.3168/jds.2019-17880
ISSN/ISBN:		1525-3198 (Electronic) 0022-0302 (Linking)
Abstract:		"To evaluate the perceptual interactions among key aroma compounds found in milk fan, propanoic acid, butanoic acid, octanoic acid, octanal, nonanal, 2-nonanone, and ethyl hexanoate were analyzed by threshold values, aroma addition experiments (subthreshold), Feller's additive model (threshold), and sigma-tau diagrams (threshold and superthreshold) at various concentrations. Aroma addition experiments highlighted that 7 key aroma compounds had significant effects on the aroma intensity of the sensory attributes of milk fan at the concentrations measured in a milk fan sample, and they might have synergistic effects with other compounds. The components of the 7 aroma compounds in binary mixtures showed synergistic effects from 21 binary mixtures by Feller's additive model. The components of 9 mixtures showed synergistic effects in the superadditive region (sigma > 1.05), and 3 mixtures showed additive effects in the additive region (0.95 < sigma < 1.05) of the sigma-tau diagrams for all 168 binary mixtures. The results showed that perceptual interactions among the key aroma compounds in milk fan vary with different concentrations and threshold ratios. These results are helpful for further understanding the aroma of milk fan and improving the quality of its aroma"
Keywords:		"Cheese/*analysis Chromatography, Gas Odorants/*analysis Olfactometry Volatile Organic Compounds/*analysis Feller's additive model and sigma-tau diagram aroma addition experiment key aroma compound milk fan perceptual interaction;"
Notes:		"MedlineTian, Huaixiang Xu, Xiaolin Sun, Xuefeng Chen, Chen Yu, Haiyan eng 2020/05/26 J Dairy Sci. 2020 Jul; 103(7):5863-5873. doi: 10.3168/jds.2019-17880. Epub 2020 May 21"