title: [Iodine-containing urine preservative].
abstract: One of the formidable problems of exploration missions is creation of autonomous water-closed life support systems. Sources of water for regeneration could be various water-containing human wastes including urine, the most chemically contaminated liquid. Prior to physical/chemical regeneration, urine first must be decontaminated in order to put a stop to microbiological processes that form harmful and volatile compounds contaminating condensate and drastically reducing the service life of afterpurifucation filters. Bactericide, sporocide and fungicide effectiveness of two iodine-containing preservatives was tested. One of them contains a water solution of iodine--potassium iodide and sulphuric acid. The other has medical poly-vinyl pyrrolidone to neutralize iodine toxicity. The broad antimicrobial spectrum of two iodine-containing urine preservatives and adaptability of microorganisms to a new environment are key arguments for serial use of these and other preservatives in regenerative physical/chemical systems of water supply in space exploration missions.
authors: N M
authors: NM
authors: Nazarov
authors: E Iu
authors: EIu
authors: Malykh
mesh_terms: D000337:Aerospace Medicine / Q000379:methods*; D000891:Anti-Infective Agents, Local / Q000494:pharmacology*; D006801:Humans; D007455:Iodine / Q000494:pharmacology*; D008021:Life Support Systems; D011309:Preservation, Biological / Q000379:methods*; D011310:Preservatives, Pharmaceutical / Q000494:pharmacology; D013026:Space Flight; D014556:Urine / Q000737:chemistry*
chemical_list: D000891:Anti-Infective Agents, Local; D011310:Preservatives, Pharmaceutical; D007455:Iodine