2.3. Preparation of wheat flour and whole wheat flour
2.3.1. Preparation of wheat flour by roller mill (RM)
The wheat samples from these mills were milled in a laboratory
mill (Model MLU-202, Bühler) to obtain wheat flour according to
AACC 26-20 (2000) method after tempering for 24 h at 16 g/100 g,
15 g/100 g and 14 g/100 g moisture contents for hard wheat,
medium-hard wheat and soft wheat, respectively. The flour
extraction rate was about 70 g/100 g. The remained bran fraction
(30 g/100 g of wheat weight) was collected and used as raw material
in post-milling processes in the following sections.