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Salt and aroma compound distributions influence flavour release and temporal perception while eating hot-served flans

Abstract : To counteract the negative effect of salt overconsumption on health, strategies have been developed to reduce the salt content in food products. Among them, two promising strategies based on odour-induced saltiness enhancement and the heterogeneous distribution of flavour compounds were combined and assessed in four-layer cream-based snacks. To investigate the relationship between saltiness enhancement, temporal release and perception of flavour compounds in hot snacks with heterogeneous distribution of salt and aroma compounds, complementary techniques were used: nose space PTR-Tof-MS (Proton Transfer Reaction-Time of Flight–Mass Spectrometry) to assess the release of aroma compounds in vivo, and ATI (Alternate Time-Intensity) and TDS Temporal Dominance of Sensations) to evaluate perception as a function of time. The obtained results confirmed that the strategy of concentrating salt in the outer layer of a multilayer product was the optimal solution with respect to taste intensity. Heterogeneous salt distribution decreased aroma compound release and consequently aroma intensity but in different ways according to both salt and added aroma distribution in the food matrix. The salty taste enhancement could be due to the initial strong dominance of the salty sensation at the very beginning of the eating process. The involved mechanisms rely on a combination of physico-chemical and perceptual effects which are not clear yet.
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Submitted on : Wednesday, March 17, 2021 - 11:56:25 AM
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Marion Emorine, Chantal Septier, Christophe Martin, Sylvie Cordelle, Etienne Sémon, et al.. Salt and aroma compound distributions influence flavour release and temporal perception while eating hot-served flans. Molecules, MDPI, 2021, 26 (5), pp.1300. ⟨10.3390/molecules26051300⟩. ⟨hal-03171942⟩



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