Colonies of E. coli exhibit a blue-violet to navy blue color and colonies of non-E. coli coliform exhibit a clear pink to red-violet color using 2 types of chromogenic substrates.


1. Brightly colored colonies at 24 hours

  •  Conventional tests using traditional agar or liquid media can be replaced with one sheet of Easy Plate media.
  •  Identification and counting of colonies is easier compared with other media, such as traditional agar, since the colored colonies make it unnecessary to confirm the presence or absence of air bubbles or the size of colonies.


2.High correlation with the plate count agar

High correlation with the plate count agar in various foods.

※ According to the research by DNP

3. AOAC PTM certified

AOAC PTM Certification Acquired.(License No.031601)


Colonies of E. coli O157:H7

While most E. coli produce β-glucuronidase, E. coli  O157: H7 does not specifically produce β-glucuronidase, and it therefore exhibits a red-violet color similar to that of non-E. coli coliform.

E. coli
  O157:H7 ATCC 43895
(Serotype O157H:7, verotoxin I- and II-producing strains)

Coloring of the plate surface caused by enzymes contained in foods

In some unheated foods and dairy products, residual enzymes in the food may cause a red-violet coloring to develop over the entire incubation area. If the visibility of the colonies is affected, improvement can be obtained using dilutions.



Escherichia coli
(NBRC 15034)
Escherichia coli
(NBRC 13500)
Escherichia coli
(NBRC 102203)
Klebsiella pneumoniae
(ATCC 13883)
Enterobacter cloacae
(ATCC 222)
Citrobacter freundii
(NBRC 12681)



Raw ground chiken Raw salmon Raw shrimp
Roast beef + E. coli Omelet + E. coli Icecream + E. coli

Product Specification

Product Name Easy Plate EC
Product Code 61975
Object microorganism E. coli & Coliform
Incubation Times 24 ± 1 hours
Incubation Temperature 35 ± 1℃
Storage Condition (Unopened) 2 - 8℃
(After opening) After opening the package, fold the open end of the package at least 2 times and tape it. Store in a refrigerator (2 to 8°C) and use within 3 months.
Shelf life 18 months after manufacturing date
Certification/Regulation AOAC RI PTM Certification Acquired.