Barrel-aged wine is a complex mixture and its olfactory perception results from the interaction of many f lavors. To estimate the role of oak-derived f lavor compounds, it is necessary to consider odor activity values (OAV) and to perform a correlation study to assess the impact of f lavor compounds on the f lavor attributes. Twenty Spanish and French wines, each aged in different types of barr...

Coffee beans from the same origin were roasted using six time-temperature profiles, in order to identify volatile aroma compounds associated with five common roast coffee defects (light, scorched, dark, baked and underdeveloped). Thirty-seven volatile aroma compounds were selected on the basis that they had previously been identified as potent odorants of coffee and were also identified in all ...

Flavor quality is of major importance to the consumer, but the flavor characteristics of beer appear to deteriorate greatly with time, at a rate depending on the composition of the beer and its storage conditions (notably pH). Prior to identifying the influence of pH on the development of the most intense staling flavors found in aged lager beers, the corresponding key flavor compounds were det...

The thesis about the influence of induced by metal ion aromaticity on properties of some chelate type metalcomplexes is presented. Such idea was decribed firstly long time ago by Calvin and Wilson [1] but has received sporadic interest until recently. In this decade, the concept has been renewed as it appeared to be useful in explaining of many properties of chelates that may have appeared unli...

Perception of the wide, complex and moving odor world requires that olfactory system engages processing mechanisms ensuring detection, discrimination environment adaptation, as early peripheral stages. Odor items are mainly elicited by odorant mixtures which give rise to either elemental or configural perceptions. Here, we first explored contribution perception through interactions at receptor ...

Recently, it has been shown that a number of hydroxypyridinones such as 1,2-dimethyl-3-hydroxypyridin-4-one (L1) are useful for the treatment of iron overload in place of desferrioxamine in thalassaemic patients. In this study, the intestinal absorption (I.A.) of L1 and one of its analogues namely 2-methy-3-hydroxypyridin-4-one (L2), which possesses a higher partition coefficient (Kpart) than L...