The invention discloses a
solid-state
fermentation method for
bacillus natto-saccharomycete composite viable
bacteria preparation with rice
bran as a matrix, which includes the following steps:
fermentation medium preparation: rice
bran and
soya bean meal are chosen as main materials, and are weighed according to a
fermentation medium formula, the components of the medium are 85 to 95 percent by weight of the rice
bran, 2 to 10 percent by weight of the
soya bean meal, 1 to 5 percent by weight of glucose and the balance of water, the materials are kept sufficiently moist, and are not agglomerated, the pH value of the materials is regulated to 6.0 to 6.5 by NaOH solution, and the materials are sterilized for later use;
solid-state fermentation: as for the
inoculation proportion of the fermentation strain, the weight ratio of
bacillus natto seed
fermentation broth to
saccharomyces cerevisiae seed
fermentation broth is (5 to 7):(5 to 3), the
inoculation proportion is 5 to 10 percent by weight, the
solid-state fermentation time is 4 to 6 days, and thereby the composite viable
bacteria preparation is obtained; and composite viable
bacteria preparation
drying and packaging are carried out. The composite viable bacteria preparation has the characteristics of high
viable count, low cost, simple process, little investment, low
energy consumption, no waste water, little environment
pollution, convenient post-
processing and the like.