Through orthogonal experiments (Table 3), the
theoretical optimum SSF condition was the following:
100 g cornmeal supplemented with 15 g soybean meal,
a fermentation time of 25 days and a moisture content
of 37.5%. Under the condition of orthogonal experiment
3 that was similar to the theoretical optimum SSF
condition, the degradation rate of starch and the
protein content in the product reached its maximum
values of 67% and 17%, respectively (Table 3). The
results indicated that the interaction of several factors
achieved a better degree of starch degradation than any
individual factor.