Drying and storage of corn grains for ethanol production in Brazil


  • Paulo Carteri Coradi Universidade Federal de Santa Santa Maria
  • Lélia Vanessa Milane Universidade Federal de Mato Grosso do Sul
  • Lucas Jandrey Camilo Universidade Federal de Mato Grosso do Sul
  • Maria Gabriela de Oliveira Andrade Universidade Federal de Mato Grosso do Sul




Biofuels, Industry, Production, Zea mays L.


The aim of the present research was to evaluate the effects of drying air temperature and storage conditions used in Brazil on the quality of corn grains (Zea mays L.) for ethanol production. The experiment was set up in a completely randomized design in a (3x2x2) factorial arrangement (drying air temperatures of 80, 100 and 120 ºC vs. ambient storage conditions of 23 ºC / 60% RH and cooled to 10 ºC / 40% RH vs. storage time of zero and six months). The corn grains were harvested with a water content of 18.0% (w.b.). Then, they were dried in a convection/forced-air oven at different temperatures, until water content reached 12% (w.b.). After that, the grains were stored. It was concluded that the increase in drying air temperature reduced lipid content and starch percentage, decreasing ethanol yield to 38.74 L ton-1 of grains. Storage under refrigeration at 10 °C was favorable for the maintenance of lipid levels (+2%), starch percentage (6%) and ethanol yield (33 L ton-1 of grains). Thus, considering production conditions and weather in Brazil, grains should be dried at air temperatures up to 80 °C, and storage must be performed under refrigerated air up to 10 °C for quality assurance of maize grains in the dry season and, therefore, increased ethanol production in the industry.


Download data is not yet available.




How to Cite

CORADI, P.C., MILANE, L.V., CAMILO, L.J. and ANDRADE, M.G. de O., 2016. Drying and storage of corn grains for ethanol production in Brazil . Bioscience Journal [online], vol. 32, no. 5, pp. 1175–1190. [Accessed24 February 2024]. DOI 10.14393/BJ-v32n5a2016-32754. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/32754.



Agricultural Sciences