The influence of satiation before and after a pasta meal was studied through the evaluation of aroma release and chewing activity during the consumption of a flavored model cheese. Aroma release during cheese consumption was found to be higher after satiation than before. The difference can be explained by an increase in the duration of the chewing sequence and an increase in the chewing muscular work after satiation. However, the pulmonary flow was not affected by satiation.
This chapter proposed an integrated approach to better understand the role of cheese composition, physiological parameters, and individual chewing behavior on aroma release and perception. Product effect (six cheeses) was more important than subject effect (14 healthy consumers). Differences were observed according to the hydrophobic properties of aroma compounds. More ethyl propanoate and less nonan-2-one (more hydrophobic compound) were released from cheeses with higher fat levels, and more of these two aroma compounds were released from firmer cheeses compared to softer cheeses. For nonan-2-one, the amount of aroma released could not explain the perception due to fat-aroma sensory interactions.
The influence of satiation before and after a pasta meal was studied through the evaluation of aroma release and chewing activity during the consumption of a flavored model cheese. Aroma release during cheese consumption was found to be higher after satiation than before. The difference can be explained by an increase in the duration of the chewing sequence and an increase in the chewing muscular work after satiation. However, the pulmonary flow was not affected by satiation.
This chapter proposed an integrated approach to better understand the role of cheese composition, physiological parameters, and individual chewing behavior on aroma release and perception. Product effect (six cheeses) was more important than subject effect (14 healthy consumers). Differences were observed according to the hydrophobic properties of aroma compounds. More ethyl propanoate and less nonan-2-one (more hydrophobic compound) were released from cheeses with higher fat levels, and more of these two aroma compounds were released from firmer cheeses compared to softer cheeses. For nonan-2-one, the amount of aroma released could not explain the perception due to fat-aroma sensory interactions.
This monograph provides the first up-to-date and self-contained presentation of a recently discovered mathematical structure—the Schrödinger-Virasoro algebra. Just as Poincaré invariance or conformal (Virasoro) invariance play a key rôle in understanding, respectively, elementary particles and two-dimensional equilibrium statistical physics, this algebra of non-relativistic conformal symmetries may be expected to apply itself naturally to the study of some models of non-equilibrium statistical physics, or more specifically in the context of recent developments related to the non-relativistic AdS/CFT correspondence. The study of the structure of this infinite-dimensional Lie algebra touches upon topics as various as statistical physics, vertex algebras, Poisson geometry, integrable systems and supergeometry as well as representation theory, the cohomology of infinite-dimensional Lie algebras, and the spectral theory of Schrödinger operators.
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