Pressure Difference Puffing Process of Surimi-Starch Chips

Using glutinous rice flour and surimi as main raw materials, surimi-starch chips were prepared by pressure difference puffing technology. Using hardness, brittleness, puffing rate, color and sensory scores as evaluation indicators, the effects of surimi addition, fat addition, salt addition, sugar addition and drying time on the quality of surimi-starch chips were discussed. The results showed that with the increasing of surimi content, the expansion rate of crisps decreased and the hardness increased. With the increasing of oil content, the expansion rate and whiteness of crisps increased. With the increasing of sugar content, the whiteness of crisps increased. With the increasing of salt content, the puffing rate of chips decreased. Under different drying time, the puffing rate, texture, color and sensory of chips changed significantly. Finally, the process parameters of surimi-starch chips were 25% surimi addition, 5% fat addition, 1.2% salt addition, 1.2% sugar addition, and 3.5 h of drying.