TY JOUR TI FREEZING EFFECT ON BACTERIAL CONCENTRATE PROTEOLYTIC ACTIVITY KW kurunga KW amino acids KW autoselection KW bioavailability KW lactics KW bacterial concentrate KW amino acid score KW mixed fermented dairy products KW microbial consortium KW natural starter JO Bulletin of KSAU AU Zandanova, T.N. PY 2022 IS 0 PB Krasnoyarsk State Agrarian University