Methods
Hydration properties
The effect of hydrocolloids on the hydration peoperties were determined by mixing the starches with the hydrocolloids at four levels (1,2,3 and 4% w/w starch basis)and also hydration properties of the starches were assessed in the absence of hydrocolloid. Levels of hydrocolloids were selected on the basis of the common range used in bakery applications included gluten and gluten free foodstuff (Bárcenas & Rosell,2005; Marco&Rosell,2008). The swelling volume was determined following the method reported by Nelson (2001) with slight modification. Briefly, dried samples (0.5g ±0.1 mg) were placed in a graduated cylinder (100ml) and mixed with distilled water (30ml),calculated by dividing the total volume of the swollen sample by the original dry weight of the sample