FIELD: microbiological industry. SUBSTANCE: hydrolyzate is cooled and neutralized. Then cation flocculant and non-ionogenic flocculant at their ratio 1: 1 are added and suspended articles are separated. Polydimethyl diallyl ammonium chloride and polyethylene oxide are respectively used as said cation flocculant and non-ionogenic flocculant. EFFECT: improved efficiency of the method. 6 cl, 1 tbl
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