Loaf characteristics of the control and substituted RB breads are given in Table 2, whereas the bread photographs are presented in Fig.1. Itwas observed that breads substituted with RB up to 20% had no significant difference in specific volume and up to 15% in crumb
firmness than the control. Further increase in RB substitution, loaf volume decreased by about 23% and 33%, whereas firmness increased by 104% and 159% for 25 and 30% substitution level,
respectively. This resultwas attributed to the diluted gluten content of the doughs and the high TDF of RB that changing crumb structure, which in turn impairs carbon dioxide retention.