Coliform is the barometer of food and environment. It reflects the environmental condition such as secondary contamination of the processed and cooked food. It is determined to be negative by food sanitary law and in many cases

Coliform forms red colony.

Staphylococcus is the normal inhabitant bacteria which is spreading in the human's mouth, throat and fingers. Staphylococcus aureus is known as cause of food poisoning by toxin, enterotoxin.

Staphylococcus forms black colony.
Staphylococcus aureus fluoresces by ultraviolet ray

This shows the contaminated condition by bacteria at various process of the food manufacturing, processing and storage, etc., and becomes the barometer of the total evaluation regarding safety of food.

Staphylococcus forms black colony.
Staphylococcus aureus fluoresces by ultraviolet ray

Cause of food poisoning mainly by fishes, especially in summer.
It happens often so careful attention is necessary not to cause secondary contamination from the fish treated utensils and equipment

Vibrio forms red purple and a little bit blurred colony

Salmonella mainly causes food poisoning by chicken and eggs, and ranks always above in the statistics of food poisoning by bacteria.

Among salmonella, hydrogen sulfide producing bacteria forms rust red colony

Revised coliform detection paper enables specially to distinguish and detect E. coli from other coliform group which is the indicator of fecal pollution.

E.coli and coliform group forma blue colony. Through ultraviolet ray, E.coli fluorescent.

Both mold and ferment exist widely in our environment and visually it deteriorates the food value as time passes. Certain kind produces carcinogenic substances represented by aflatoxin. It enables to check contamination before it appears.

Mold forms specified-colored colony, and ferment forms dark brown colony.