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Colony Counter
Colony counter
Colony counter
• A colony counter is an instrument
used to count colonies of bacteria or
other microorganisms growing on a...
Colony counter
• One variety uses a pencil-like rod with a metal
tip, which is connected by an electrical
connection to th...
Early counters

Recent counters

• Early counters were merely
lighted surfaces on which the
plate was placed, with the
col...
(for the automatic colony counter)
1. Place the
Petri-dish
on the colony
counter

2. Count a Petri-dish by clicking the count button
on the software.
• 3.The results will be displayed indicating the
number of colonies.
The Recent Colony Counter
• The automatic colony counter has the ability to
separate the image of combined colonies for th...
For the old/digital colony counter
The Old Colony Counter
1. Place the colony counter on the lighted surface
with the colonies marked off with a felt-tipped
...
Comparison
Recent

Old

• Is indeed faster and easier to
use
• More efficient for observation.

• Hard to use
• Manual cou...
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Colony Counter Compatibility Mode

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Transcript of "Colony Counter Compatibility Mode"

  1. 1. Colony Counter
  2. 2. Colony counter
  3. 3. Colony counter • A colony counter is an instrument used to count colonies of bacteria or other microorganisms growing on an agar plate. • An instrument designed to conveniently count or assist counting colonies of microorganisms on a plate containing a gelled growth medium.
  4. 4. Colony counter • One variety uses a pencil-like rod with a metal tip, which is connected by an electrical connection to the gelled growth medium; when touched to a colony on the plate, the completion of the electrical circuit causes an increment of 1 unit on the readout of the colony counter.
  5. 5. Early counters Recent counters • Early counters were merely lighted surfaces on which the plate was placed, with the colonies marked off with a felttipped pen on the outer surface of the plate while the operator kept the count manually. • More recent counters attempt to count the colonies electronically, by identifying individual areas of dark and light according to automatic or user-set thresholds, and counting the resulting contrasting spots.
  6. 6. (for the automatic colony counter)
  7. 7. 1. Place the Petri-dish on the colony counter 2. Count a Petri-dish by clicking the count button on the software.
  8. 8. • 3.The results will be displayed indicating the number of colonies.
  9. 9. The Recent Colony Counter • The automatic colony counter has the ability to separate the image of combined colonies for the user to magnify each colony. • The recent colony counter is connected to a PC.
  10. 10. For the old/digital colony counter
  11. 11. The Old Colony Counter 1. Place the colony counter on the lighted surface with the colonies marked off with a felt-tipped pen on the outer surface. 2. Keep the count manually
  12. 12. Comparison Recent Old • Is indeed faster and easier to use • More efficient for observation. • Hard to use • Manual counting • Not so efficient compare to the recent
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