Rheological analysis was performed using a controlled stress rheometer (RheoStress 1, Thermo Haake, Karlsruhe, Germany) with
parallel plate geometry (60 mm diameter). The batter was placed between parallel plates, the gap adjusted to 1 mm and excess batter was removed. To prevent drying at the edges, a thin layer of vaseline oil was applied to cover the exposed batter surfaces. Prior to rheology analyses, samples were left in 300 s to allow relaxation. Tests were performed at 25 C. Stress sweep tests from 0.1 to 20 Pa and 1 Hz of frequency were previously performed to determine the
maximum stress in the linear viscoelastic region of all samples