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Encyclopedia of Astrobiology pp 1Cite as

D-Value

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Definition

The D-value is a number given to characterize a process to achieve inactivation of 90 % of a population of the test microorganism under stated conditions (temperature, pressure, etc.). This value could be a dose or a concentration for a drug, a time in minute, hour, or day for DHMR, or pasteurization, a dose for sterilization using ionizing radiations (i.e., γ-ray).

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Authors and Affiliations

  1. NASA Headquarters, Washington, DC, USA

    Catharine A. Conley

Authors
  1. Catharine A. Conley
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Correspondence to Catharine A. Conley .

Editor information

Editors and Affiliations

  1. Centro de Biología Molecular, Universidad Autónoma de Madrid, Madrid, Spain

    Ricardo Amils

  2. Labo. d'Astrophysique de Bordeaux (LAB), Observatoire Aquitain des Sciences de l'Univers (OASU), Floirac CX, France

    Muriel Gargaud

  3. Centro de Astrobiología (CAB), Inst. Nacional de Técnica Aeroespacial, Torrejón de Ardoz, Madrid, Spain

    José Cernicharo Quintanilla

  4. Geophysical Lab., Carnegie Institution of Washington, Washington, District of Columbia, USA

    Henderson James Cleaves

  5. Astronomy Department, University of Massachusetts, Amherst, Massachusetts, USA

    William M. Irvine

  6. Dépt. Sc. de la Terre et de l’Atmosphère, Université du Québec, Montréal, Montreal, Québec, Canada

    Daniele Pinti

  7. Centre National d'Etudes Spatiale (CNES) DPI/E2U, Paris CX, France

    Michel Viso

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© 2014 Springer-Verlag Berlin Heidelberg

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Conley, C.A. (2014). D-Value. In: Amils, R., et al. Encyclopedia of Astrobiology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27833-4_464-2

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  • DOI: https://doi.org/10.1007/978-3-642-27833-4_464-2

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Online ISBN: 978-3-642-27833-4

  • eBook Packages: Springer Reference Physics and AstronomyReference Module Physical and Materials ScienceReference Module Chemistry, Materials and Physics

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