Recent published literature (1990-1995) on the subject of grain drying
and drying of forages is reviewed. Research priorities regarding crop
drying tends to be regionalized, responding at times to differences i
n socio-economic conditions, at times to the status of energy research
and environmental policy. Because grains have recently become much mo
re important feedstocks for various food and industrial products, dryi
ng research has gradually shifted towards the study of drying-induced
changes in microstructure and physico-chemical properties of plant mat
erial. Future research will focus on issues related to texture modific
ation, innovative techniques for dryer control, improved drying models
and technologies that reduce the need for non-renewable sources of en
ergy.