40561 Millipore

β-Lactamase Testkit

for microbiology



Related Categories Identification Tests & Reagents, Microbiology, Test Kits More...
grade   for microbiology
shelf life   limited shelf life, expiry date on the label
Featured Industry   Food and Beverages
storage temp.   2-8°C


General description

β-Lactamase Testkit is a rapid acidimetric test for detection of β-lactamase activity of microorganisms. The test is performed in microtitre wells. This test is based on hydrolysis of the β-lactam ring in benzylpenicillin, which results in the production of penicilloic acid. This process causes acidification of the bacterial suspension, and changes the color of the acid-based indicator. The acidimetric test for beta-lactamase activity is suitable only for the detection of Haemophilus influenzae, Neisseria gonorrhoeae and Staphylococcus spp. This test is not suitable for the detection of the β-lactamase activity of other microorganisms (Branhamella catarrhalis, Enteroccocus faecalis, Neisseria meningitis, Enterococcus spp. and others). The result of the reaction is read after 10-30 min.


Kit contains two microtitre plate strips coated with benzylpenicilline, diluent 75 mL and instructions sheet (for 192 tests)

Safety & Documentation

Safety Information

NONH for all modes of transport


Certificate of Analysis (COA)

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Protocols & Articles


Identification of Microorganisms Based on Color

For microbiologists the most fundamental stain was developed in 1884 by the Danish bacteriologist Hans Christian Gram. The Gram Stain allows the determination of morphology, dividing bacteria into tw...
Jvo Siegrist
Microbiology Focus Edition 1.4, Product Manager Microbiology....
Keywords: Antibiotics, Enzyme activity, Fermentation, Gram stain, Help, Indicators, Reductions

Microbiology Introduction

An initial aim of all microbiologists is the reproducible growth of their microbial cultures, no matter whether the microorganisms are of natural origin or have been genetically engineered by man. Re...
Keywords: Absorption, Aerobic, Anaerobic, Antibiotics, Antimicrobials, Buffers, Culture media, Diffusion, Environmental, Filtration, Genetic, Growth factors, Metabolism, Phase transitions, Precipitation, Reductions, Respiration, Sample preparations, Vitamins

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