After 48 h of the fermentation, the viable count of the sample fermented by L. plantarum P-8
mixed with B. subtilis natto was 2.19 1010 CFU/g, which is higher than that of the samples fermented by B. animalis 937 mixed with B. subtilis natto and L. casei Zhang mixed with
B. subtilis natto with the viable count of 1.41 108 CFU/g and 1.74 1010 CFU/g, respectively