Article | REF: F3002 V1

Drying of food products - Devices and applications

Authors: Catherine BONAZZI, Jean-Jacques BIMBENET

Publication date: March 10, 2008 | Lire en français

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    3. Case studies

    3.1 Industrial corn drying

    France's second-largest plant production, grain corn averaged 16 Mt nationwide, although 44% of production was concentrated in the southwest (Aquitaine, Poitou-Charentes and Pays de Loire).

    For storage, grain must be dried to a moisture content of 14-15% (wet basis) to avoid :

    • reduced germination capacity;

    • the proliferation of moulds, some of which generate toxic substances;

    • respiration phenomena (a grain at 30% humidity has a respiration intensity 400 times greater than at 15%), the consequences being a loss of dry matter and an increase in temperature (risk of deterioration, or even fire).

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