Methyl Red Indicator is used to detect the ability of an organism to produce and maintain stable acid end products formed from glucose fermentation.
The Methyl Red test involves adding the pH indicator Methyl Red to an inoculated tube of MR-VP broth. If the organisms use the mixed acid fermentation pathway and produces stable acidic end products, the acids will overcome the buffers in the medium and produce an acidic environment in the medium. When methyl red is added, if acidic end products are present, the Methyl Red Indicator will stay red.
Reagents/contents :
The Methyl Red Indicator comprised of:
1. 0.02% Methyl Red Indicator
Appearance: Red coloured solution.
