Wheat bran was mixed with broken rice to develop nutritionally balanced ext
ruded crisp snacks for human consumption. The inclusion of wheat bran enhan
ced the content of nutrients such as calcium, phosphorus, iron, copper, thi
amine, riboflavin, lysine and also of antinutrients like phytic phosphorus
and trypsin inhibitor. Extrusion cooking decreased the content of thiamine,
riboflavin and lysine. The degradation of phytic phosphorus and inactivati
on of trypsin inhibitor had an improving effect on the nutritional quality
of the extruded snacks as reflected by higher in vitro digestibility of its
proteins.