Effect of freezing storage temperature on properties of zein films
The properties of zein films were effected by freezing storage temperature. The results showed that temperature of freezing storage had influences on the zein films, which led to the changes of mechanical properties, equilibrium moisture content (EMC), water vapor permeability (WVP). Tensile strength (TS) and elongation (E) of zein films decreased with the decreasing of freezing storage temperature; The EMC increased with the decreasing of freezing storage temperature, but then it had a little decrease; With the decreasing of freezing storage temperature, the WVP of zein films showed an increase.