BiosistoStandard has the answer to your practical microbiological quality issues.

BiosistoStandard is a guide that quickly helps you find the necessary Certified Reference Materials for your quality program. The website gives you also a lot of practical information, photos, tips & tricks that can help you optimize the quality of the analysis.

The recommended Certified Reference Materials for performance testing suggestions are a Biosisto interpretation of the ISO 11133 and the corresponding analysis standard. The suggested strain(s) has to be used as a minimum.

Do you have helpful information that other labs should know? Feel free to share this on this website so that other laboratories can take advantage of this.

Latest articles

Selective chromogenic medium for the direct detection and enumeration of Listeria monocytogenes and Listeria spp. in food and environmental samples. Certified NF VALIDATION according to the ISO 16140 standard and validated by AOAC. …

Horizontal method for the enumeration of yeasts and moulds – Part 1: Colony count technique in products with water activity greater than 0,95 …

CRM-ABR.00053MM

Enumeration of yeasts and molds in human and animal food regardless of their water activity, and for water and environmental research. Certified NF VALIDATION by AFNOR …

Sensitive chromogenic agar is used to detect and enumerate Salmonella spp. in products intended for human and animal consumption. Certified NF VALIDATION according to the ISO 16140 standard and validated by AOAC. …

Horizontal method for the detection, enumeration and serotyping of Salmonella Part 1: Detection of Salmonella spp. Part 2: Enumeration by a miniaturized most probable number technique …

Escherichia coli O.157:H7 and Escherichia coli O.157 (non-VTEC) give a false negative result for Escherichia coli on the CCA and TBX because the colonies do not appear characteristic. Colonies of Escherichia coli appear on CCA (Chromogenic Coliform Agars) according to ISO 9308-1 as dark-blue to violet colonies. However, Escherichia coli O.157:H7 doesn’t do this and gives …

Aloa - spread - supplier 1

Listeria monocytogenes is a serious food pathogen. If you are looking for this pathogen, you want to detect this bacteria down to the last cell. The quality of the ALOA medium used is a crucial part of the analysis. Research shows that there is a difference in electivity between suppliers. The color of the colony …

The property value on the Certificate of Analysis is, in most cases, performed according to a standard like ISO or NEN. Sometimes is no standard available, and a total count of micro-organisms is displayed using a non-selective media. This is the case with quality products and CRM with low concentrations, whereby besides the standard method …

Microorganisms can be divided and analyzed into the following categories and standards:   Category Treatment Min.°C Optimum.°C Max. °C Standard Psychrophilic cell – -15 10 20 – Psychrotrophic cell – -5 25 35 ISO 6222,  ISO 21527-1,  ISO 21527-2 Mesophilic cell Mesophilic spore – 10 min 80°C 10 35 45 ISO 4833-1,  4833-2 NEN 6813 …

Horizontal method for the detection of pathogenic Yersinia enterocolitica …

Enumeration of colony-forming units of yeasts and/or moulds – Colony-count technique at 25 degrees C …

Horizontal method for the enumeration of yeasts and moulds – Part 2: Colony count technique in products with water activity less than or equal to 0,95 …

Quality in Control

Microbiological laboratories should be able to receive reliable analysis without much overhead. A microbiological analyst must be able to focus on the primary activities, for example analysis of the sample material. Quality control should support the analyst in a logical and simple manner. By using modern information technology, process control and quality assurance are designed smarter and more effective.

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