Volatile release from liquids: A comparison of in vivo APCI-MS, in-mouth headspace trapping and in vitro mouth model data

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Swen Rabe
  • Robert S.T. Linforth
  • Ulrich Krings
  • Andrew J. Taylor
  • Ralf G. Berger

Research Organisations

External Research Organisations

  • University of Nottingham
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Details

Original languageEnglish
Pages (from-to)163-173
Number of pages11
JournalChemical senses
Volume29
Issue number2
Publication statusPublished - 1 Feb 2004

Abstract

In-mouth volatile release from flavoured water was followed using atmospheric pressure chemical ionization-mass spectrometry (APCI-MS) or using a hand-held, computer-controlled device based on sequential trapping of flavours on Tenax traps. The present results verify recent in vitro data obtained with a sophisticated, fully computerized mouth model apparatus and confirm its validity for the simulation of in-mouth dynamic volatile release. In-nose APCI-MS measurements showed considerable person-to-person variability in non-trained individuals during drinking due to subconscious control of muscles during swallowing and subsequent breathing. Data showed a 'swallow breath' volume reaching the nasal cavity from the throat, not from the mouth cavity. Flavour enriched air from the mouth was shown to be transported to the nose (via exhalation) immediately after the swallowing event, but the dynamic process of volatile equilibration between residuals of the swallowed liquid and the exhaled air predominantly determined volatile in-nose concentration. Owing to its dynamic character, the process of volatile equilibration and release in the throat upon exhalation should be similar to the in-mouth process studied in the present work. A full mechanical simulation of retronasal volatile transport, however, will remain difficult.

Keywords

    APCI-MS, Dynamic flavour release, In-mouth, Model mouth, Perception, Retronasal, Volatile

ASJC Scopus subject areas

Cite this

Volatile release from liquids: A comparison of in vivo APCI-MS, in-mouth headspace trapping and in vitro mouth model data. / Rabe, Swen; Linforth, Robert S.T.; Krings, Ulrich et al.
In: Chemical senses, Vol. 29, No. 2, 01.02.2004, p. 163-173.

Research output: Contribution to journalArticleResearchpeer review

Rabe S, Linforth RST, Krings U, Taylor AJ, Berger RG. Volatile release from liquids: A comparison of in vivo APCI-MS, in-mouth headspace trapping and in vitro mouth model data. Chemical senses. 2004 Feb 1;29(2):163-173. doi: 10.1093/chemse/bjh021
Rabe, Swen ; Linforth, Robert S.T. ; Krings, Ulrich et al. / Volatile release from liquids : A comparison of in vivo APCI-MS, in-mouth headspace trapping and in vitro mouth model data. In: Chemical senses. 2004 ; Vol. 29, No. 2. pp. 163-173.
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