Most probable number definition

Most probable number or "MPN" means that the number of organisms per unit volume that, in accordance with statistical theory, would be more likely than any other number to yield the observed test result or that would yield the observed test result with the greatest frequency, expressed as density of organisms per 100 milliliters. Results are computed from the number of positive findings of coliform-group organisms resulting from multiple-portion decimal-dilution plantings.
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Most probable number or "MPN" means the density or number of organisms per unit volume most likely to be present in a water sample and obtained from method-specific statistical MPN tables.
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Examples of Most probable number in a sentence

  • Most probable number technique using 5-bromo-4-chloro-3- indolyl-D-glucuronide.

  • Water quality – Enumeration of Escherichia coli and coliform bacteria; Part 2: Most probable number method.

  • This standard entitled “ Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 2: Most probable number method (ISO 9308-2:2012)” was approved by the European Committee for Standardization (CEN) on 11 April 2014.

  • The fecal coliform bacteria standard is as follows: the geometric mean fecal coliform value for a sampling station shall not exceed an MPN (Most probable number) or a MF (Membrane Filtration using mTEC culture media) of 14 per 100 milliliters of sample and the estimated 90th percentile shall not exceed an MPN of 43 per 100 ml for a 5-tube decimal dilution test or an MPN of 49 per 100 ml for a 3-tube decimal dilution test or MF test of 31 CFU (colony forming units) per 100 ml.

  • Most probable number (MPN) is defined as a statistical value representing the viable bacterial population in a sample through the use of dilution and multiple tube inoculations.

  • Total ciloforms, thermotolerant coliforms, and heterotrophic plate count removal trend after different cycles in absence of residual chlorineHPC: Heterotrophic plate count; MPN: Most probable number; FMPN: fecal coliforms most probable number Bacteria conc.

  • Table 2.2. Summary of Fecal Coliform Data for the Eau Gallie River, WBID 3082 (January 1, 1999–June 30, 2006) Waterbody (WBID)* Most probable number per 100 milliliters.

  • Most probable number determination from serial dilution, USFDA, CFSAN.

  • Blodgett: Bacteriological analytical manual appendix2: Most probable number from serial dilutions (2010)[14] Robert J.

  • Most probable number (MPN) are indirect methods in which water, organic substances, mineral elements, and/or bacterial food sources are added to enrichment media to encourage the growth of soil protozoa (Foissner 1987).

Related to Most probable number

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