Consumer perceptions of beer: The role of individual differences

John Castura/ June 3, 2019/ Oral Presentation/ 0 comments

Taste plays a key role in a consumer’s attitude towards food products and can influence the consumption of that product. One factor, thermal taster status, is determined when the tongue is warmed or cooled, whereby thermal tasters experience phantom taste sensations, while thermal non-tasters do not. Using temporal-check-all-that-apply sensory methodology, we simultaneously investigated the impact of thermal taster status and

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Did assessors select attributes by chance alone in your TDS study, and how relevant is it to know?

John Castura/ May 15, 2019/ Peer-reviewed Paper/ 0 comments

Dominance rates arising from Temporal Dominance of Sensations (TDS) data are almost always plotted and understood with reference to chance and significance lines, which are based on the assumption of random attribute selection. These lines are auxiliary to the chart, and used to interpret the dominance rates; when the dominance rate for some attribute exceeds the significance line, the conventional

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A bitter pill to swallow? Inter-individual variation in sensitivity to tastants and implications for alcohol consumption

John Castura/ April 30, 2019/ Conference Proceedings/ 0 comments

Consumption of alcohol is widespread throughout much of the world, impacting human health and well-being in several ways. Taste (bitterness, sourness, saltiness, sweetness, umami, and oleogustus) is an important driver of consumer preference and intake for many foods and beverages. Here, we report on two studies; the first (S1) assesses general sensitivity (responsiveness) to taste and somatosensory stimuli and its

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Application of TCATA to examine variation in beer perception due to thermal taste status

John Castura/ April 15, 2019/ Peer-reviewed Paper/ 0 comments

Thermal taste status (TTS) describes a phenotype whereby some individuals experience a thermally-induced taste on thermal stimulation of the tongue (thermal tasters; TTs) and some do not (thermal non-tasters; TnTs). TTs experience a range of orosensations elicited by aqueous solutions and some beverages more intensely than TnTs. Whether this extends throughout ingestion duration is unknown, despite the fact that the

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Influence of wine composition on consumer perception and acceptance of Brettanomyces metabolites using temporal check-all-that-apply methodology

John Castura/ February 14, 2019/ Peer-reviewed Paper/ 0 comments

Brettanomyces spoilage in wine is due to the production of metabolites, which together create the distinctive ‘Bretty’ aroma and flavor profile associated with wine. The objective of this study was to assess the influence of three wine flavor matrices on consumer acceptance and the temporal sensory properties of wines containing high and low concentrations of Brettanomyces-metabolites. A commercial Shiraz red

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