Fig. 1.

Experimental setup for monitoring VOC production from a fungal solid state reactor. Hydrated air was sparged through the bottom of the reactor. Reactor off-gas was sampled from the top of the reactor, diluted and sent to a CO₂ detector to measure respiratory CO₂ and then to the PTR-MS for quantification of major VOC species. Alternatively the off-gas was sent to a platinum catalyst where VOCs were oxidized to CO₂ and measured by the CO₂ detector as the sum of the VOCs produced and respiratory CO₂