Laboratory Analysis: Detection of Fermentable Yeasts
Alcoholic and non-alcoholic beverages are specifically tested for the presence of fermentable yeasts. A distinction and classification is made between obligatory fermentable yeasts (i.e. yeasts that can lead to product damage in any concentration and in any product) and potentially fermentable yeasts (i.e. yeasts that can lead to product damage under certain conditions such as concentration, sugar content of the beverage, pH value, etc.). In addition, the presence of yeasts in general is also tested.
You will receive the results on the 3rd working day after receipt of the sample. In the case of finished enrichments, at the latest on the 1st working day after receipt of the sample.
Qualitative or quantitative detection?
Qualitative
How is the analysis carried out?
By using the reliable VIT® gene probe technology.
What are the requirements for the sample to be sent in?
Product or raw material samples
- Beer, wine, juices & soft drinks, min. 100 ml
- Juice concentrates, min. 25 ml
- Powder, min. 10 g
- Water samples (e.g. mineral water, rinse water etc.), min. 150 ml
Pre-enriched samples:
- Enrichment broth (10 ml) or agar plate with colonies: This leads to an acceleration of the rapid analysis (the results are then expected on the 1st working day after receipt of the sample).
Our test kit is recommended for analyzing your sample directly on site:
Your Advantages
VIT® technology enables the targeted detection of individual microorganisms at population, genus or species level. The use of highly specific, rRNA-based gene probes ensures clear identification of the target organism directly in the sample.
The VIT® gene probes hybridize only with intact, metabolically active cells, as only these have sufficient amounts of ribosomal RNA. This means that only living obligate and potentially fermentable yeasts are detected, while dead or inactive cells are excluded.
Complete detection is completed in just 3-5 hours - a decisive advantage over cultivation-based methods, which take several days due to enrichment, incubation and evaluation. The VIT® technology therefore enables significantly faster decisions in quality assurance, process control and release.
The VIT® technology is based on over 25 years of experience in the development of specific, fluorescence-labeled gene probes for microbiological analysis. It is characterized by high specificity, reproducibility and resistance to interfering matrices.
A particular advantage: as the method is based directly on rRNA and does not require enzymatic amplification steps, it is insensitive to inhibitors. False-positive results, which can occur with PCR-based test kits - especially in complex matrices - are therefore ruled out.
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