teatud toodete praktiline uuring nendes esinevate mikroorganismide kasvupotentsiaali kindlakstegemiseks ohutuse ja säilimisaja määramise eesmärgil, a laboratory study to assess the growth, survival or inactivation of microorganism(s) artificially inoculated in a food, study of the evolution of microorganisms populations artificially inoculated in a food, under given storage conditions