COMPARISON OF METHODS OF STORAGE OF LACTOCOCCAL BACTERIOPHAGES

Abstract

Vitality of bacteriophages of lactic acid bacterium  Lactococcus lactis  is investigated at storage in liquid, frozen and freeze–drying condition. Survival of virus particles at all ways of storage is species–specific. It was revealed that the survival of bacteriophages at storage in the liquid a nd frozen condition decreases to proportionally time frameworks. The survival of bacteriophages at storage  in  freeze–drying condition  intensively decreases within  the  first  year of storage, within the next two years changes towards reduction slightly. It is revealed  that  difficult  protective  environments  are  most  suitable  for  freeze–drying process and the further storage of bacteriophages in a dried condition.