The role of mathematical modeling in VOC analysis using isoprene as a prototypic example
Helin Koç, Julian King, Gerald Teschl, Karl Unterkofler, Susanne Teschl, Pawel Mochalski, Hartmann Hinterhuber, and Anton Amann
Exhaled isoprene concentrations are reported to change under different clinical and physiological conditions, especially in response to enhanced cardiovascular and respiratory activity. Investigating isoprene exhalation kinetics under dynamical exercise helps to gather the relevant experimental information for understanding the gas exchange phenomena associated with this important VOC.
A first model for isoprene in exhaled breath has been developed by our research group. In the present paper, we aim at giving a concise overview of this model and describe its role in providing supportive evidence for a peripheral (extrahepatic) source of isoprene. In this sense, the results presented here may enable a new perspective on the biochemical processes governing isoprene formation in the human body.
Keywords: Breath gas analysis, isoprene, volatile organic compounds, modeling