Preservation of bacteria by circulating-gas freeze drying.

  title={Preservation of bacteria by circulating-gas freeze drying.},
  author={J Wagman and E J Weneck},
  journal={Applied microbiology},
Water-washed Serratia marcescens and Escherichia coli were freeze dried in a circulating-gas system at atmospheric pressure. This convective procedure resulted in a substantially higher survival of organisms than could be obtained by the vacuum method of freeze drying. There was little or no decrease in cell viability during convective drying when the… CONTINUE READING