3.2.2. Bread crumb structure
No significant differences (p > 0.05) were found in cell volume,
diameter and wall thickness between breads made from unheated
and heated sorghum flour (Table 2). Cell volume and diameter
remained small while more cells per slice area were produced.of smaller gas is desirable when improving volume and overall
crumb structure of gluten-free breads. Gelinas et al. (2001) studied
the effects of heat on substandard flour to improve bread making
potential. They found the number of crumb cells within a fixed area
increased after heat treatment. They also found heat-treated flour
greatly improved the fineness of crumb grain. This study seemed to
confirm their findings since the internal grain structure was
perceived to improve with heat treatment. Illustrated in Fig. 2, heat
treated flour produced a finer and more uniformly-sized cell
structure while the control flour produced an irregular crumb
structure with large gaps between the crust and crumb. The control
flour clearly had a weaker crumb structure which collapsed after
initial oven spring.
Gallagher, Gormley, and Arendt (2003) expressed a greater number