3. Results and discussion
3.1. Effect of RS addition in model gluten free breads (MGFB)
The moisture content of gluten free model doughs ranged between 31.5% wb (MGFB5) and 39.1% wb (MGFB15). Changes in water content (p = 0.0016), obviously had a significant effect on moisture of breads, although resistant starch addition and protein content produced no significant effect on that response ( Table 1c).
Response plots of crumb's firmness, elasticity, porosity and surface porosity were presented in Fig. 1a–d. Relative to crumb's firmness, a significant effect was exhibited by water (p = 0.012) and protein content (p = 0.028), whereas RS content did not influence crumb's firmness ( Table 1c).