What is colony counter in microbiology?
The colony counter is an instrument that is commonly used to count colonies of bacteria or other microorganisms on a plate containing a gelled growth medium. The colony counter is used for microbiology applications for fast and accurate counting of bacterial and mould colonies.
What is Quebec colony counter?
The Reichert Quebec® Darkfield Colony Counter allows you to easily and accurately count bacteria colonies. It comes with an adjustable dish holder that can accommodate round dishes with diameters as small as 100 mm, and square dishes as small as 100 mm x 100 mm.
What is the working principle of colony counter?
Colony counters count the number of colonies of microorganisms that have grown on an agar plate prepared from a sample. The colony counters can use fluorescent labels or the contrast between light and dark areas on the plates to make their count.
What are the advantages of using a colony counter?
Improved measurement of uncertainty by using a standard and consistent counting methodology with less operator error. Efficiency for labour and time (reduced cost). Elimination of manual entry of data onto LIMS. Faster result reporting to customers.
What are the types of colony counter?
AutoCOL. Fully automated colony counting system.
How do you use a colony counter?
Simply place the petri dish on the electronic pressure pad and touch the dish with a felt tip pen to mark each colony. The touch pressure causes a count to be registered on the digital display and an audible tone confirms each count made (the sound can be switched on or off as desired).
What is cubic colony counter?
Colony counters are used to estimate a liquid culture’s density of microorganisms by counting individual colonies on an agar plate, slide, mini gel, or Petri dish. Typical applications include Ames testing, bacterial mutation assays, and E. coli bacterial colonies.
How do you handle colony counters?
After incubating the plate under appropriate conditions for the microorganism, the colonies are counted. For the spread, pour, or drop methods, the colony counting is self-explanatory: count each colony dot once. A marker can be used pointing each counted colony on the back of the Petri dish.
What is automatic colony counter?
The EC2™ Automated Colony Counter delivers standardized, accurate results in less than 1 sec per plate and provides live, full-color on-screen images with counted-colonies control. Automatic colony separation gives accurate results for both whole plate and sector counts.
What is digital colony counter?
Digital Colony Counter is designed for quick and accurate counting of bacterial and mould colonies in petri dishes. Feature packed & easy to use, this is an indispensable bench top tool for the busy microbiologist. It is designed for rapid and accurate counting of bacterial and mould colonies.
How do you calibrate colony counters?
5.0 PROCEDURE 5.2 Operate the equipment as per SOP of operation of colony counter. 5.3 Press the surface of counter screen 100 times with pointer/marker and then check the number displayed on the screen. 5.4 Reset to 000 and again press the manual button 100 times and check the number displayed on the screen.