Micro- Lab
Your UV Validation Partner – From Lab to Real Process Conditions
Molecular Precision – Ensuring Safety at the Microbial Level
Reliable UV disinfection starts with proof, validation and real data. That is exactly what our laboratory delivers.
The microbiological laboratory in France, operated by STERIXENE – a subsidiary of the Hoenle AG, is a biosafety level 2 (BSL-2) laboratory dedicated to the validation and optimization of UV-based disinfection technologies.
With over 23 years of experience in microbiology and 16 years in optics and UV technology, our experts support you from feasibility testing to application-specific validation – always focused on your real process conditions.
What You Can Validate in Our Laboratory
We help you answer the questions that matter most before UV goes into operation:
UV Bioindicators
- Development and use of patented UV bioindicators (2–6 log)
- Fast and reliable evaluation of UV systems
- Suitable for low pressure, medium pressure, UV-LED and pulsed light
Effect of UV Treatment on Food Shelf Life
- Before vs. after UV treatment comparisons
- Validation of hygiene improvements without compromising quality
- Support for safer and longer-lasting food products
Material Migration Testing
- Global and specific migration analysis
- Comparison before and after UV treatment
- Ensuring material safety and regulatory compliance
Customized UV Treatments
- UV protocols adapted to your real process conditions
- Validation under realistic operating parameters
- Direct transfer from lab results to industrial application
Neo-Formed Compounds & Organoleptic Testing
- Analysis of neo-formed compounds after UV exposure
- Organoleptic tests (taste, odor, appearance) in cooperation with qualified partners
- Ensuring UV effectiveness without negative sensory impact
Our Solutions
Any Questions?
Who can request microbial reports from Sterixene?
Microbial reports can be requested by our customers, partners and authorized authorities.
Which microbial strains are used in Sterixene bioindicators?
Sterixene bioindicators contain standardized, non-pathogenic microbial strains for validation and monitoring purposes. Commonly used strains from the DSMZ (German Collection of Microorganisms and Cell Cultures) include:
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Aspergillus brasiliensis – DSM 1988
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Aspergillus niger – DSM 737
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Aspergillus carbonarius – DSM 872
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Bacillus atrophaeus – DSM 7264
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Bacillus subtilis – DSM 23778
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Geobacillus stearothermophilus – DSM 5934
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Bacillus pumilus – DSM 27
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Penicillium rubens – DSM 1075
How long are the bioindicators usable after receipt?
The shelf life of the bioindicators depends on the microbial strain:
| Microorganism | Usable life after receipt |
|---|---|
| Aspergillus brasiliensis DSM 1988 | 1 month |
| Aspergillus niger DSM 737/DSM1957 | 1 month |
| Aspergillus carbonarius DSM872 | 1 month |
| Bacillus atrophaeus DSM675/DSM 7264 | 6 months |
| Bacillus subtilis DSM23778 | 6 months |
| Geobacillus stearothermophilus DSM5934 | 6 months |
| Bacillus pumilus DSM27 | 6 months |
| Penicillium rubens DSM1075 | 3 weeks |
Are the microbial tests safe to handle?
Yes. All strains used in Sterixene bioindicators are non-pathogenic and widely recognized for safe use in sterility testing and process validation. Standard laboratory safety procedures should always be followed.
Are the results reliable?
Yes, reference samples are stored at Sterixene in refrigerators until their expiration date. Each shipment includes three comparison indicators to ensure stability during transport.
How long does it take to prepare a microbial report?
The processing time depends on the scope of the analysis. As a rule, we provide reports within 2–5 business days.
In what format will I receive the report?
All reports are provided as PDF documents by default. Additional formats can be made available upon request.
Are there any additional costs for the reports?
The costs depend on the type of analysis and are transparently listed in the offer.
Contact And Support
Do you have any questions or need support? We are happy to help you.
