EN 15789:2009

Name: EN 15789:2009
Brand: CEN

Superseded

View Superseded by

Animal feeding stuffs - Isolation and enumeration of yeast probiotic strains

Superseded date

07-12-2021

Published date

02-09-2009

Publisher

Comite Europeen de Normalisation

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Diluent, selective media and test kit for
phenotypic characterisation
6 Apparatus and glassware
7 Sampling
8 Preparation of test samples
9 Procedure
10 Expression of results
11 Precision
12 Test report
Annex A (informative) - Results of the interlaboratory
study
Bibliography

This European Standard defines general rules for the enumeration of probiotic yeasts in feed samples (additives, premixtures and feeding stuffs) that contain yeast as a single microorganism component or in a mixture with other microorganisms. The standard is not applicable to mineral feeds which are defined as complementary feedingstuffs composed mainly of minerals and containing at least 40% crude ash (Council Directive 79/373/EEC) [4].There are different categories of feed samples:a)Additives which contain about 109 CFU/g to 1010 CFU/g (CFU = colony forming units).b)Premixtures which contain about 108 CFU/gc)Feeds, meal or pellets, which contain about 106 CFU/g and include complete feedingstuffs, and milk replacers.The detection limit is as defined in ISO 7218.

Committee	CEN/TC 327
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Superseded
SupersededBy	EN 15789:2021

Standards	Relationship
ONORM EN 15789 : 2009	Identical
UNE-EN 15789:2010	Identical
SN EN 15789 : 2010	Identical
NBN EN 15789 : 2009	Identical
NF EN 15789 : 2009	Identical
PN EN 15789 : 2009	Identical
NS EN 15789 : 2009	Identical
DIN EN 15789:2009-12	Identical
NEN EN 15789 : 2009	Identical
I.S. EN 15789:2009	Identical
UNI EN 15789 : 2009	Identical
BS EN 15789:2009	Identical
DIN EN 15789 E : 2009	Identical

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
EN 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 6887-1:2017)
ISO 6497:2002	Animal feeding stuffs Sampling
ISO 7954:1987	Microbiology General guidance for enumeration of yeasts and moulds Colony count technique at 25 degrees C
ISO 6498:2012	Animal feeding stuffs — Guidelines for sample preparation
EN ISO 7218 : 2007 COR 2014	MICROBIOLOGY OF FOOD AND ANIMAL FEEDING STUFFS - GENERAL REQUIREMENTS AND GUIDANCE FOR MICROBIOLOGICAL EXAMINATIONS (ISO 7218:2007/AMD 1:2013, CORRECTED VERSION 2014-04-15)