Ti(°C) Tg(°C) Tf(°C) ΔH (mJ)
NCF 65.2 68.5 69.7 –15.8×10–3
PS 59.5 63.7 69.5 -107.08
OVF -- -- -- --
Mixture 61.3 64.9 69.7 -55.48
Pellet -- -- -- --
Expanded -- -- -- --
(-- No gelatinization peak), Ti is initial temperature [onset], Tg is gelatinization temperature, Tf is final gelatinization temperature [endset], and ΔH is the transition enthalpy.
Table 2: Thermogram data of raw materials [nixtamalized corn flour (NCF), potato starch (PS), orange vesicle flour (OVF)], unprocessed mixture, extruded pellet, and microwave expanded product.