[Objective] The aim to study the suitable strain and condition for producing the bacterial protein by solid state fermentation technique.[Method] The cassava residue was used as raw material and the single strain of mildew and microzymes and their mixed bacterium were taken as tested strains to produce bacterial protein through solid fermentation and the orthogonal test with 4 factors was conducted.[Result] The protein content obtained by mixed bacterium fermentation was higher than that by single bacteria ...