ISO 29981:2010
Current
The latest, up-to-date edition.
Milk products — Enumeration of presumptive bifidobacteria — Colony count technique at 37 degrees C
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19-01-2010
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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.
| Committee |
ISO/TC 34/SC 5
|
| DevelopmentNote |
Supersedes ISO/DIS 29981. (01/2010) Also numbered as IDF 220. (02/2010)
|
| DocumentType |
Standard
|
| Pages |
17
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| NEN ISO 29981 : 2010 | Identical |
| PN ISO 29981 : 2012 | Identical |
| BS ISO 29981:2010 | Identical |
| 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 |
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| 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 |
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| 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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