Intended use:

Usage of Compact Dry ETC is a simple and safe test procedure for determination and quantification of Enterococcus in foods and water samples. The plates consist of a special 50 mm diameter petri dish containing a detection specific nutrient pad.

The ready-to-use, chromogenic Compact Dry plates are suitable for in-process controls as well as controls of finished products. With the Promedia ST-25 swab tests (Art. No. Z0302, available from R-Biopharm) Compact Dry plates may also be used for surface sampling and therefore applied for quantitative hygiene monitoring even at surfaces which are difficult to reach.

General information:

Enterococci are Gram-positive organisms which belong to the intestinal bacteria as well as the Gram-negative Enterobacteriaceae. Enterococci may appear as contaminations in a variety of fermented foods. Their presence in food products has long been considered as an indication of poor sanitary conditions during production and processing. On the other hand, enterococci are specifically used as starter cultures for the fermentation processes of a variety of foods. It is claimed that enterococci play an important role in the development of the organoleptic properties of the fermented foods. For water, the presence of enterococci serves as an indicator of fecal contamination. Enterococci will only appear in water if they are inserted by contaminations with human or animal feces.

The Compact Dry ETC is based on the usage of X-glucoside (X-Gluc.) and antibiotics as selective agents. Enterococci will grow with blue to blue green colonies after incubation for approx. 24 hours at 37° C.


  • NordVal - Certificate No. 47
Art. No. HS9461; HS9462
Test format 100 nutrient plates or 40 nutrient plates, respectively - where four plates are packed in one aluminum bag
Incubation time 20 - 24 h at 37 ± 1°C
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Food microbiology testing_Compact Dry X-BC_greenish-blue colonies of Bacillus cereusFood microbiology testing_Compact Dry AQ_red colonies of heterotrophic water bacteria