Accession Number : AD0469390


Title :   LETHAL PROCESSES IN DEHYDRATION OF MICROORGANISMS


Corporate Author : ARMY BIOLOGICAL LABS FREDERICK MD


Personal Author(s) : Bateman, John B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/469390.pdf


Report Date : Aug 1965


Pagination or Media Count : 59


Abstract : Approaches to the study of lethal effects of dehydration and relevant experimental results obtained by the author and co-workers since 1958 are summarized informally. The paper includes (1) a working hypothesis of interacting lethal processes from which self-limiting long-term decay curves can be calculated. (2) Preliminary experimental data illustrating the types of information needed for application of the hypothesis. (3) An account of the preparation of simulated aerosols by deposition of cells upon membrane filters. (4) Approaches to the identification of lethal interactions, including the correlation of lethal effects with the colligative properties of simple additives. (5) Illustrative data for Serratia marcescens in the presence of NaC1, LiBr, and urea. (6) Data on short-term decay of washed Serratia marcescens at 13 ambient relative humidities. (7) Preliminary data on the effects of oxygen in accelerating humiditydependent decay and on possible effects of slow residual water transfer.


Descriptors :   *DEHYDRATION , *PHYSICAL CHEMISTRY , *SERRATIA MARCESCENS , MEMBRANES(BIOLOGY) , PERMEABILITY , DEGRADATION , DIELECTRIC PROPERTIES , EVAPORATION , SURVIVAL(PERSONNEL) , HYSTERESIS , HUMIDITY , KINETIC THEORY , CYTOLOGY , BACTERIAL AEROSOLS


Subject Categories : Microbiology


Distribution Statement : APPROVED FOR PUBLIC RELEASE