1. Compressive strength values of parboiled paddy and
milled rice were significantly affected by varieties, Tarom
had higher values than Fajr for paddy and milled rice.
2. Removing husk and bran in milling process caused
the ultimate stress, rupture force and rupture energy of
milled rice to decrease.
3. All mentioned properties increased significantly with
increase in steaming time from 10 to 20 min.
4. The best GA-ANN model observed had 9 and 11
neurons in hidden layer for Tarom and Fajr paddy, respectively.
5. The developed model can be used efficiently to predict
compressive strength properties of parboiled paddy and
milled rice.