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Products Consumables Microbiology Detection kits
Products Consumables Microbiology Detection kits
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Deltaklean for E.coli and coliforms

DESCRIPTION

Swab with culture medium and growth indicator for the detection of E.coli and coliforms directly from surfaces. Culture medium incorporates a pH indicator to indicate biological activity, by changing the color of the medium that is easily visible.

  • With 2,5 ± 2ml agar.
  • Shelf life 6 months.
  • Storage 10-25ºC.
  • Composition: differential medium.

TECHNIQUE

    1. Remove the sterile swab from inside the bag.

    2. Wet the tip of the swab by immersing it in sterile physiological solution.

    3. Drain excess liquid by resting the tip of the swab against the wall of the tube.

    4. Rub the swab on a surface (10 x 10 cm2) horizontally and vertically.

    5. Introduce the swab into the tube containing the culture medium.

    6. Close the tube and write the date and place of sampling.

    7. Incubate at 37°C for 18-24 hours.

    8. Observe the change in color of the medium and interpret the result:

  • Yellow media: Absence of E.coli-coliforms
  • Green media: Presence of coliforms
  • Fluorescence media: Presence of E.coli Each laboratory must evaluate the results according to their specifications.

QUALITY CONTROL

  • Physical/Chemical control
  • Color: Yellow
  • pH: 7.0 ± 0.2 at 25ºC
  • Microbiological control
  • Inoculate: Practical range 10-50 CFU.
  • Aerobiosis: Incubation at 37±1ºC, reading after 18-24 h
Deltaklean for E.coli and coliforms View more