ABSTRACT

An average annual world production of cereals, oilseeds, and

legumes (hereafter referred to as grains or products) is 2 Gt

(billion tonnes).[1] These grains when stored in bulk create a

man-made ecosystem where interactions between abiotic

(temperature, moisture content, intergranular gas composi-

tion) and biotic (grain, insects, mites, molds, bacteria) fac-

tors can cause their deterioration. By reducing temperature

(to 10-20C) and moisture content (to 12-14% for cereals), these products can be stored for long durations because the

activities of biological agents are significantly reduced at

low temperatures. The concept of equilibriummoisture con-

tent (EMC) plays a significant role in understanding the

drying process of grains and their potential to deteriorate.