Nosespace analysis

Nosespace analysis The air exhaled through the nose was drawn up into a special heated stainless steel tube and spUt into two fractions. One fraction was analysed by proton reaction mass spectrometry, and the remainder was released into the laboratory air. 

Romano A, Cappellin L, Ting V, et al. Nosespace analysis of PTR-TOF-MS for the characterization of food and tasters the case study of coffee. Int J Mass Spectrom. 4 365-366 20-7. 

Nosespace Analysis with Proton-Transfer-Reaction Mass Spectrometry Intra- and Interpersonal Variability... 

The significance of retronasal aroma stems from the fact that it reflects the aroma perceived by a consumer during eating and drinking. One method to explore retronasal aroma analytically is nosespace analysis. Over the last few years, two analytical approaches, which are capable of monitoring the... 

Here we have applied PTR-MS to the nosespace analysis of a series of 12 liquid samples. These included one water sample and three milk samples with different fat content (0.033%, 2.7%, and 3.8% fat), containing five aroma compounds at three different concentrations. The nosespace from all samples was analyzed by five different panelists (two women and three men) in five repetitions. After a short discussion of recent technical developments of our nosespace setup, the discussion focuses on the inter-and the intrapersonal variability of the nosespace intensity for five-compounds— -damascenone, hexanal, ethylbutyrate, benzaldehyde, and 2,3-butanedione. Further interpretation of the results is found in Ref. 7. 

Figure 2 Example of nosespace analysis output showing five replicates of liquid sample consumption, with 2 min breathing between each sample. This example was...

T bl 1 Variation Among Panelists and Among Compounds for Their Release of Flavor Compounds in Nosespace Analysis ... 

Table 6.9. Breath analysis of mouthspace and nosespace signal intensities relative to headspace intensities by atmospheric pressure chemical ionization-mass spectrometry (APCI-MS) ...

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