Abstract: Two-dimensional time evolution approach was applied to study corn germ and endosperm-water system. Measurements were made on; (1) germ without water (vacuum evaporation) but with different percentages of oil, (2) germ without oil(chemically extracted) but with different percentages of water and (3) endospermwater system with different percentages of water. Water interacts strongly with germ matrix and considerably decreases T₁ of the system, whereas oil almost remains independently with its surroundings. The behavior of low moisture (less then 5% of water) corngerm is the water bound to germ matrix and oil is in the form of oilcell. There are two T₁ components in germ matrix-water system. The exchange rates in long T₁ group is 57s^-1 from matrix to water and 113s^-1 from water to matrix. In short T₁ group, the exchange rate is 245s^-1 from matrix to water and 821s^-1 from water to matrix. At low hydration, the endosperm-water system has one T₁ component. The exchange rate from endosperm to water is higher than 37s^-1.

Key words: NMR, Germ, Endosperm, FID, Water