Mineral, spring and table waters as well as drinking waters that are to be marketed.
Qualitative detection of faecal streptococci in mineral water, spring water, table water and other drinking water bottled for distribution to the consumer by means of enrichment culture in double-concentrated azide-glucose broth [1].
Two-stage enrichment for the detection of harmful yeasts and bacteria in cloudy, non-alcoholic beverages using liquid pre-enrichment and pouring plate
All cloudy, non-filterable, non-alcoholic drinks with a pH value < 4.3.
Detection of harmful yeasts and bacteria using liquid enrichment and pouring plate.
Detection of Alicyclobacillus spp. in the NAB area by means of liquid pre-enrichment and streak.
All clear, non-alcoholic drinks and raw material samples.
Qualitative detection of Alicyclobacillus spp. by means of liquid enrichment and streak plate.
Detection of harmful osmophilic and osmotolerant yeasts, moulds and bacteria in NAB raw material samples
Raw material samples (e.g. fruit juice concentrates, sugar syrup, etc.) in the NAB area
The microorganisms should be quickly transferred from the lag phase to the log phase by the liquid pre-enrichment and then visualised as a colony in the agar plate.
Mineral, spring and table waters as well as drinking waters that are to be marketed.
Membrane filtration (MF) and immersion of the filter in single-strength azide-dextrose broth (corresponds to the methods in Annex 2, point 2b of Section 4 (3) of the German Mineral and Table Water Ordinance [1] and ASU Section 64 LFGB L59.00-2) [2].