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  • ISO 29981:2010

    Current The latest, up-to-date edition.

    Milk products — Enumeration of presumptive bifidobacteria — Colony count technique at 37 degrees C

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English, Russian

    Published date:  19-01-2010

    Publisher:  International Organization for Standardization

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    Abstract - (Show below) - (Hide below)

    ISO 29981|IDF 220:2010 specifies a method for the selective enumeration of presumptive bifidobacteria in milk products by using a colony count technique at 37 °C under anaerobic conditions.

    The method is applicable to milk products such as fermented and non-fermented milks, milk powders, infant formulae, and starter cultures where these microorganisms are present and viable, and in combination with other lactic acid bacteria.

    Bifidobacteria used in milk products usually belong to the species: Bifidobacterium adolescentis; B. animalis subsp. animalis; B. animalis subsp. lactis; B. bifidum; B. breve; B. infantis; B. longum.

    General Product Information - (Show below) - (Hide below)

    Committee ISO/TC 34/SC 5
    Development Note Supersedes ISO/DIS 29981. (01/2010) Also numbered as IDF 220. (02/2010)
    Document Type Standard
    Publisher International Organization for Standardization
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS ISO 27205:2010 Fermented milk products. Bacterial starter cultures. Standard of identity
    ISO 27205:2010 Fermented milk products Bacterial starter cultures Standard of identity

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
    ISO/TS 11133-1:2009 Microbiology of food and animal feeding stuffs Guidelines on preparation and production of culture media Part 1: General guidelines on quality assurance for the preparation of culture media in the laboratory
    ISO 6887-1:2017 Microbiology of the food chain — Preparation of test samples, initial suspension and decimal dilutions for microbiological examination — Part 1: General rules for the preparation of the initial suspension and decimal dilutions
    ISO 7218:2007 Microbiology of food and animal feeding stuffs General requirements and guidance for microbiological examinations
    ISO 707:2008 Milk and milk products — Guidance on sampling
    ISO 7889:2003 Yogurt Enumeration of characteristic microorganisms Colony-count technique at 37 degrees C
    ISO 835:2007 Laboratory glassware — Graduated pipettes
    ISO 6887-5:2010 Microbiology of food and animal feeding stuffs Preparation of test samples, initial suspension and decimal dilutions for microbiological examination Part 5: Specific rules for the preparation of milk and milk products
    ISO 14461-1:2005 Milk and milk products Quality control in microbiological laboratories Part 1: Analyst performance assessment for colony counts
    ISO 14461-2:2005 Milk and milk products Quality control in microbiological laboratories Part 2: Determination of the reliability of colony counts of parallel plates and subsequent dilution steps
    ISO 16140:2003 Microbiology of food and animal feeding stuffs Protocol for the validation of alternative methods
    ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
    ISO 3534-1:2006 Statistics — Vocabulary and symbols — Part 1: General statistical terms and terms used in probability
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