Standard: ISO - 19344

MILK AND MILK PRODUCTS - STARTER CULTURES, PROBIOTICS AND FERMENTED PRODUCTS - QUANTIFICATION OF LACTIC ACID BACTERIA BY FLOW CYTOMETRY

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Scope:

This International Standard specifies a standardized method for the quantification of active and/or total lactic acid bacteria and probiotic strains in starter cultures used in dairy products by means of flow cytometry. The method is also applicable to probiotics used in dairy products and to fermented milk products such as yogurts containing primarily lactic acid bacteria.

This International Standard does not apply to taxonomical differentiation of bacteria. Due to its nonspecificity, the method may quantify other bacteria than those within the scope of this International Standard, when present in the sample. This may lead to overestimation of the counts.

The minimum bacterial cell concentration in the sample before applying this standardized method depends on the dilution rates used in the individual protocols. Typically 106 cells per gram or ml are considered within the minimum range.

Organization: International Organization for Standardization
Document Number: 19344
Publish Date: 2015-12-15
Page Count: 32
Change Type: NEW ADDITION
Available Languages: EN
DOD Adopted: NO
ANSI Approved: NO
Most Recent Revision: YES
Current Version: YES
Status: Active
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