E. coli organism

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InTray® m-Endo LES - Prepared Plated Culture MediaBiomed InTray® m-Endo LES culture media for coliform diagnostics


InTray® m-Endo LES - Prepared Plated Culture Media

InTray™ total coliform test utilizes a selective indicator medium (m-Endo LES) for use in presumptive identification and enumeration of Coliform colonies in water samples.

This media is specified by both the APHA and the US EPA for the detection of total Coliforms. The device is designed to interface directly with standard methods for bacterial testing of water samples using the Membrane Filter (MF) Technique.



Product Principle
  • Combine collection, culture, result and microscopic observation in one IVD device.  
  • Highly selective prepared media in a device designed for in-vitro specimen transport and incubation.
  • Rapid presumptive-positive diagnosis without re-plating.  Intray can be placed directly on microscope stage
  • Fully enclosed cassette with Tyvek® air filtration prevents contamination and exposure, post-collection.   
Simple Convenience
  • The InTray is designed for specimen collection/ inoculation at point-of-care
  • Saves time, material cost and waste, reducing exposure to collected sample
  • Place directly on the microscope tray for observation through the cassette’s clear anti-fog window
  • Selectively produces distinctive colony growth with typical identifiable morphology
Accurate Detection

Specially formulated medium promotes growth and chromogenic differentiation for a variety of Salmonella serotypes. 

Test Strain

Colony Appearance

E. coli Pink to Rose-red
Enterobacter/Klebsiella Large mucoid. Pink
Proteus Colorless, Pale Pink
Salmonella Colorless, Pale Pink
Shigella Colorless, Pale Pink
Pseudomonas Colorless, Pale Pink
Time to Result
  • 20-24 hours, incubate at 35ºC. If negative, incubate another 24 hours
  • Extended 12 month shelf life (2-8°C) from the date of manufacture
  • Can tolerate extended periods at controlled room temp (≤ 25˚C), with no loss in performance.
  • Water sample

For In Vitro, Analytical Use Only

Features and Benefits

Shelf-life and durability

  • Designed for long shelf life, durability and stackable for incubation, or 12 month storage. 
  • No re-plate or wet mount 
  • Once InTray is inoculated, no other culture preparation is required... saving time and cost. 
  • Designed for specimen collection/inoculation at point-of-care, a fully enclosed system for transport, incubation, result and microscopic observation. 
  • The sealed prepared media device is selectively formulated for accurate detection and identification of pathogens and non-pathogens
  • Visual chromogenic differentiation and/or selective production of distinctive colony growth with typical identifiable morphology 

Key Features

  • Fully enclosed cassette with air filtration system
  • Nutritive culture colony growth medium, formulated for selectivity and specificity 
  • Anaerobic or aerobic system available 

You'll immediately experience a reduction in:

  • Time-to-result
  • Cost of laboratory materials 
  • Medical waste
  • Risk of exposure or contamination

Instructions for Use

Biomed offers extensive product documentation for each of our products. If you would like to review these, please see the Product Documentation section in the upper right of this page. 

If you would like to download the Instructions for Use (IFU) please click here ►

Ordering Information

Product Qty Item #
InTray m-Endo LES Custom Call for Pricing

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