[Rehydration conditions for dehydrated Saccharomyces cerevisiae yeasts and cell viability]

The viability of dehydrated Saccharomyces cerevisiae populations was studied as a result of changes in the conditions of rehydration (temperature, pH, time, composition of the medium). Rehydration was shown to play a key role for the functional characteristics of populations in the general consideration of dehydration-rehydration and to involve several factors. The viability of cells is regarded as both a relative and absolute criterion for the physiological state of populations. The conditions of rehydration should be strictly standardized for dehydrated microorganisms in comprehensive studies of mechanisms involved in the stability of microorganisms.