Our website uses cookies and other technologies to improve your experience.

close

Germ sampler

The germ sampler is a device for the control of microbiological contamination. The germ sampler is used in different areas of production. The germ sampler quantifies colonies of microorganisms in the pharmaceutical industry, in the manufacture of food drinking, as well as in hospitals, in ...

The germ sampler is a device for the control of microbiological contamination. The germ sampler is used in different areas of production. The germ sampler quantifies colonies of microorganisms in the pharmaceutical industry, in the manufacture of food drinking, as well as in hospitals, in the cosmetic industry and in environmental measurements. To analyze microbiological contamination, the germ sampler features standard petri dishes that are inserted into the sampling head. In this way, the germ sampler measures, depending on the impaction principle, by which microorganisms are thrown directly into a petri dish, filled with agar. This allows the samples to be incubated directly on the germ samplerplates.

Measurement and control of microbial contamination in environments in food industries

Sampling by plate sedimentation or by filtration and impact on an agar plate is one of the most common methods.

Dry disinfection through smoke is ideal in places where the presence of moisture is not desirable.

Importance of microbiological control of environments

The air of the food industries contains in suspension different types of microorganisms, especially bacteria and fungi. Some microorganisms are found in the form of vegetative cells, but most often sporulated forms, as the spores are metabolically less active and survive better in the atmosphere because they support desiccation.

Microbiological analysis techniques of environments

Once the disinfection is carried out, it is important to know the effectiveness of the treatment applied, so that the decrease in microbial counts in the environment is verified to levels considered safe, and that these levels are maintained over time. Therefore, it is increasingly common that, within the quality control regulations, an environmental microbiological control is included. To carry out this analysis, it must be established, in advance: the sampling method to be used, the microorganisms to be isolated and quantified, the sampling sites, the number of samples in each room, and the frequency of sampling. Once these parameters have been determined, it is advisable to carry out comparative analyses that allow obtaining statistical data with which to monitor the evolution of environmental pollution and make control graphs.

The sampling method is the first factor to be determined, since there are important differences in the results obtained, due to the different efficiency in the capture of microorganisms of the different methods. The most used are:

· Plate sedimentation method.

· Method of filtration and impact on an agar plate.

The sedimentation method consists of leaving petri dishes exposed for a certain time with a selective culture medium. This method has the disadvantage that there may be certain factors that alter the sedimentation of microorganisms (for example, drafts), thus affecting the results and the possibility of comparing the analytical series.

The filtration and impact method avoids this difficulty, as it consists of equipment that filters a predetermined volume of air, which subsequently impacts on an agar plate. This analytical technique is very useful for the determination of microbiological contamination after cleaning and disinfection operations.

Generally in the analysis of environments total germs and molds are determined, although varying the culture medium can be used for other microorganisms, including pathogens such as Campylobacter.

Interpretation of results

To qualify the environmental quality in a work room in the food industry, critical limits must be established that determine the correct conditions, although, currently, for food industries there is no regulation that determines these limits.

Specifications for molds in food industries

From the point of view of food safety, environmental contamination is important because it can be a vector of pathogenic and altering microorganisms. To avoid microbial risk from the environment, it is usual to carry out disinfection treatments by air by means of cold misting systems and using disinfectants for environmental use, or dry, by means of smoke, in food handling rooms where the presence of moisture is not desirable.

 

Colector de gérmenes PCE-AS1

PCE-AS1

Colector de gérmenes PCE-AS1

Colector de germenes de aire para el control de contaminación microbiológica. LCD con iluminación de fondo. Basado en el principio de...
Product rating:
0 review

Product Data Sheet:

pdf PCE-AS1.pdf

Price:

€4,411.54 (inc. VAT)
€3,645.90 (Excl. VAT)
3 Available
2-3 business days
Up
Menu
Close
Shopping trolley
Close
Return
Account
Close