TY JOUR TI Mathematical planning of propionic acid bacteria cultivation KW propionic acid bacteria KW Propionibacterium freudenreichii KW cultivation KW process optimisation KW nutrient medium KW Box-Wilson method KW vitamin B12 KW full-factor experiment JO From Chemistry Towards Technology Step-By-Step AU Pavlov, I.N. AU Gora, O.N. PY 2022 IS 3 PB Yaroslavl State Technical University