Welcome to the Refreshed Chemopharm Webstore!
 
SKU
CDL/1512
Brand
CONDALAB
Pre-order (Deliver in 8 to 12 weeks)

MR-VP MEDIUM 500 grams/bottle

Login For Price
MR-VP Medium is used in the differentiation of enteric Gram-negative bacilli on the basis of the methyl red and acetylmethylcarbinol (Voges-Proskauer) reactions of the Escherichia-Enterobacter group. Casein peptone provides nitrogen, vitamins, minerals and amino acids essential for growth. Dextrose is the fermentable carbohydrate providing carbon and energy. Potassium phosphate acts as a buffer system. In 1915, Clark and Lubs used methyl red as an indicator of acidity in the cultures of the Coli-Enterobacter group. This test is now known as the methyl red test and serves to distinguish between those microorganisms that produce and maintain a high concentration of acid from those that initially produce a small amount of acid and are capable of later attacking those same acids, turning the medium neutral or alkaline, such as Enterobacter species. Voges and Proskauer described in 1898 a fluorescent red coloration that appeared in certain cultures upon adding drops of KOH solution. Later it was supposed that this reaction was due to the oxidation of acetylmethylcarbinol to diacetyl that reacted with the peptone of the medium to give a red color. Enterobacter bacteria oxidize the acetylmethylcarbinol and give a red coloration, in contrast to Escherichia coli that does not.
More Information
Brand CONDALAB
Write Your Own Review
You're reviewing:MR-VP MEDIUM 500 grams/bottle
Your Rating
Who Viewed This Also Viewed
  1. Phono Jack 2.5mm to USB cable (MINIPHONEUSB)
    Phono Jack 2.5mm to USB cable (MINIPHONEUSB) Brand: EUTECH SKU: EU/MINIPHONEUSB
    Login For Price
  2. Shark Skin Circles, 320mm  100/pk
    Shark Skin Circles, 320mm 100/pk Brand: WHATMAN SKU: WH/10347530
    Login For Price
  3. Container Thick Wall
    Container Thick Wall Brand: COLE-PARMER SKU: CP/OO/O/P-03732-22
    Login For Price
  4. Beaker,PP,2000ml
    Beaker,PP,2000ml Brand: COLE-PARMER SKU: CP/OO/O/P-06000-70
    Login For Price
  5. No. 4 Filter Circles 7cm/100
    No. 4 Filter Circles 7cm/100 Brand: WHATMAN SKU: WH/MA/AO/1004070
    Login For Price