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Food Res Int

Title:		Matrix effects influencing the perception of 3-mercaptohexan-1-ol (3MH) and 3-mercaptohexyl acetate (3MHA) in different Chenin Blanc wines by Projective Mapping (PM) with Ultra Flash profiling (UFP) intensity ratings
Author(s):		Wilson C; Brand J; du Toit W; Buica A;
Address:		"Department of Viticulture and Oenology, Stellenbosch University, P/Bag X1, Matieland 7602, South Africa. Department of Viticulture and Oenology, Stellenbosch University, P/Bag X1, Matieland 7602, South Africa. Electronic address: abuica@sun.ac.za"
Journal Title:		Food Res Int
Year:		2019
Volume:		20181225
Issue:
Page Number:		633 - 640
DOI:		10.1016/j.foodres.2018.12.032
ISSN/ISBN:		1873-7145 (Electronic) 0963-9969 (Linking)
Abstract:		"Interaction studies are used in sensory evaluation to elucidate the complex influences (additive, masking, synergistic) that various compounds have on the perception of wine aroma. To these, the interactions between the matrix and the compounds of interest add another layer of complexity. Unlike previous interaction studies, the current work used a rapid method, Projective Mapping (PM) coupled with intensity of attributes, to evaluate the interaction effects two thiols (3-mercaptohexan-1-ol, 3MH, and 3-mercaptohexyl acetate, 3MHA) have in various matrices. The matrices used were increasingly complex, from model wine to partially dearomatized neutral Chenin Blanc to commercial wines. The results reflected the effect of the thiols interaction with the matrix more than that between compounds. The methodology proposed for the data handling highlighted possible advantages and shortcomings of the Projective Mapping with intensity approach. The choice of base matrix as well as the sensory method are relevant when studying interaction effects, and are dependent on the desired outcome of the experiment"
Keywords:		Acetates/*analysis Adult Female Fermentation Food Handling Humans Male Odorants Sulfhydryl Compounds/*analysis Taste Volatile Organic Compounds/analysis Wine/*analysis Young Adult Chenin Blanc Interaction studies Projective Mapping with intensity Thiols W;
Notes:		"MedlineWilson, Christine Brand, Jeanne du Toit, Wessel Buica, Astrid eng Research Support, Non-U.S. Gov't Canada 2019/05/22 Food Res Int. 2019 Jul; 121:633-640. doi: 10.1016/j.foodres.2018.12.032. Epub 2018 Dec 25"