%20(1080%20x%20360%20px).png)
Microgen® Biochemical Identification Kits
Home / Products / Microgen Sampling & Confirmation Kits / Microgen® Biochemical Identification Kits
Microgen® Biochemical Identification Kits – Delivering Accurate & Reliable Bacterial Identification for Research and Diagnostic Laboratories
​​​
The Microgen® Biochemical Identification Kits deliver precise and dependable bacterial identification through advanced biochemical profiling technology. Specifically engineered for food and microbiology laboratories, these kits enable the accurate differentiation of both Gram-positive and Gram-negative bacteria, which is essential for ensuring regulatory compliance, robust product safety, and comprehensive quality assurance.
With integrated Microgen® Identification System Software, laboratories can quickly interpret results, generate traceable codes, and improve workflow efficiency across all microbial testing processes.
1. Microgen® GN-ID A and GN-ID B
The Microgen® GN-ID A and GN-ID B systems provide reliable biochemical identification of Enterobacteriaceae and other oxidase-positive, non-fastidious, Gram-negative bacilli commonly isolated from food, water, and clinical samples.
-
GN-ID A: 12 standardized biochemical substrates for routine bacterial identification
-
GN-ID A + B: Extended 24-substrate system for broader coverage and enhanced diagnostic accuracy
> Comprehensive Panel
12 (GN A) or 24 (GN A+B) biochemical reactions for extensive identification of Enterobacteriaceae.
> Rapid Results
Accurate identification within 18–24 hours (GN A) or 48 hours (GN A+B).
> Easy Interpretation
Integrated with Microgen® Identification System Software for fast, accurate code generation.
> User-Friendly Workflow
Simple setup and minimal reagent requirements..
> International Compliance
Validated for ISO and global microbiological testing standards
An Identification System for Enterobacteriaceae
The Microgen® GN-ID database includes a wide range of clinically and industrially relevant organisms such as:
​
> Escherichia coli
> Salmonella spp.
> Klebsiella spp.
> Enterobacter spp.
> Shigella spp.
> Proteus spp.
> Yersinia enterocolitica
> Serratia marcescens
> Citrobacter spp.
> Acinetobacter spp. and many more
How to Use Microgen® GN-ID?
1. Select
Pick a single, well-isolated colony.
.png)
2. Prepare
Suspend the colony in sterile media.
.png)
3. Inoculate
​Add 3–4 drops of suspension into each microwell; add reagents (MID61 series) if required.
.png)
4. Incubate
​Incubate for 18–24 hours at 37°C (GN A) or 48 hours (GN A+B).
.png)
5. Identify
​Observe colour reactions, generate a numerical code, and identify the organism using Microgen® Identification System Software (MID60).
The following reagents are available to complement Microgen® GN-ID A and GN-ID B systems for extended biochemical testing and confirmation:​
> MID61A - Nitrate A reagent*
> MID61B - Nitrate B reagent*
> MID61C - VP I reagent
> MID61D - VP II reagent
> MID61E - TDA reagent
> MID61F - Indole Kovacs reagent
> MID61G - Oxidase strips
> MID61H - Mineral Oil
> MID61K - PYR reagent
Note: MID61A and MID61B reagents are only required when using the GN A & B combination format.
Why Microgen® GN-ID Matters?
The Microgen® GN-ID A and GN-ID B systems deliver fast, accurate, and cost-effective biochemical identification of Gram-negative bacteria. With extensive species coverage, software-assisted interpretation, and rapid turnaround times, these kits enhance laboratory workflow, reduce errors, and support regulatory compliance, making them ideal for food safety testing, clinical diagnostics, and quality control.
2. Microgen® Listeria-ID
The Microgen® Listeria-ID system is designed to identify and differentiate Listeria species directly from selective agar plates. Using a 12-well biochemical system with enhanced haemolysis visualization, it eliminates the need for sub-culturing or additional confirmatory tests such as the CAMP test, saving valuable time while maintaining high accuracy.
This system enables laboratories to easily distinguish haemolytic and non-haemolytic Listeria spp., providing faster and clearer results for food and clinical microbiology testing.
> Complete identification system
All necessary reagents included, no extra materials needed.
> Built-in haemolysis test
Replaces the CAMP test for easier interpretation.
> Direct inoculation from selective media
No sub-culturing required.
> Validated for chromogenic media
Compatible with international testing standards.
> Standards compliant
Conforms to ISO and international guidelines.
An Identification System for Listeria spp.
Microgen Listeria-ID employs 12 standardised microwell substrates combined with the Microgen Identification System Software to identify the following members of the genus Listeria:
​
> Listeria monocytogenes​
> Listeria welshimeri
> Listeria ivanovii
> Listeria innocua
> Listeria grayi
> Listeria seeligeri
The above organisms can be identified directly from selective agar or non-selective agar using Microgen Listeria-ID. Identification is achieved using all the tests recommended in international standard methods for the identification of Listeria spp. without the need for additional confirmatory tests.
How To Use Microgen® Listeria-ID?
1. Select
Choose a single, well-isolated colony.
2. Prepare
Emulsify the colony in Listeria suspending broth.
3. Inoculate
Unfold the MID system and add 3–4 drops of suspension to each well (100–125 μL). Add 1 drop of haemolysin reagent to well 12.
4. Incubate
Seal and incubate at 35–37°C for 18–24 hours.
5. Interpret
Observe the colour reactions, generate a code, and identify the species using the Microgen Identification System Software.
Why Microgen® Listeria-ID Matters?
The Microgen® Listeria-ID provides rapid, accurate, and cost-effective identification of Listeria spp. directly from culture plates. By combining enhanced haemolysis visualization, standardized substrates, and software-assisted analysis, it ensures reliable results, minimal preparation, and full compliance with international food safety standards, supporting food safety, quality control, and regulatory compliance in laboratories.