DTK Water, 4/4a Titley Bawk Avenue, Earls Barton Northampton NN6 0LA, UK
T: +44 (0)1604 686995
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TTC/MALT D002 Dipslide
The TTC/MALT dipslide allows convenient enumeration of aerobic microorganisms (TVC) as well as fungi, moulds and yeasts
in a single test. The dipslide is prepared with nutrient TTC agar on one side (responsive to aerobic microbes) and an acidic
malt agar which selects for the growth of yeasts and moulds. The additive in the nutrient agar reacts with enzymes produced i
aerobic respiration to produce a colour change from white to red, allowing easy enumeration.
The sample should be taken by immersing both sides of the paddle into the fluid to be tested, it having first been removed fr
the sterile container. Excess sample should be gently shaken from the paddle before it is replaced in the container.
The sample should be taken by allowing direct contact between the agar surface and the test material. The paddle is flexible
and can be bent at the upper end to allow both surfaces to come into intimate contact. Bacterial recovery rate is about 50% s
that sweeping an area approximately twice that of the paddle will give a more accurate result.
Incubate at 30
C for 24
48 hours. For Yeast and Moulds leave for up to 5 days.
Used slides should be incinerated or autoclaved. Alternatively, immerse in a 10% bleach solution for 24 hours.
Colony Size (mm)
Shape & Surface
CV.E.G = Convex entirely glossy, FED = Full entire dull
YEASTS AND MOULDS
Aspergillus flavus, Aspergillus niger
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