Not to be confused with Coliiformes, a family of birds, or Fecal coliform, one type of coliform bacteria.
Escherichia coli
Coliform bacteria are defined as either motile or non-motile Gram-negative non-spore forming bacilli that possess β-galactosidase to produce acids and gases under their optimal growth temperature of 35–37 °C.[1] They can be aerobes or facultative aerobes, and are a commonly used indicator of low sanitary quality of foods, milk, and water.[2] Coliforms can be found in the aquatic environment, in soil and on vegetation; they are universally present in large numbers in the feces of warm-blooded animals as they are known to inhabit the gastrointestinal system.[1] While coliform bacteria are not normally causes of serious illness, they are easy to culture, and their presence is used to infer that other pathogenic organisms of fecal origin may be present in a sample, or that said sample is not safe to consume.[1] Such pathogens include disease-causing bacteria, viruses, or protozoa and many multicellular parasites.[1]
Every drinking water source must be tested for the presence of these total coliform bacteria.
^ abcdLi D, Liu S (2019). "Water Quality Monitoring in Aquaculture". Water Quality Monitoring and Management. Elsevier. pp. 303–328. doi:10.1016/b978-0-12-811330-1.00012-0. ISBN 978-0-12-811330-1. S2CID 133759843.
^Martin NH, Trmčić A, Hsieh TH, Boor KJ, Wiedmann M (2016). "The Evolving Role of Coliforms As Indicators of Unhygienic Processing Conditions in Dairy Foods". Frontiers in Microbiology. 7: 1549. doi:10.3389/fmicb.2016.01549. PMC 5043024. PMID 27746769.
Coliformbacteria are defined as either motile or non-motile Gram-negative non-spore forming bacilli that possess β-galactosidase to produce acids and...
The coliform index is a rating of the purity of water based on a count of fecal bacteria. It is one of many tests done to assure sufficient water quality...
of indicator bacteria. The most common indicators are total coliforms, fecal coliforms, E. coli, and enterococci. The presence of bacteria commonly found...
test, or differential coliform test, or confirmed Escherichia coli count, is a test used for the identification of coliformbacteria from warm-blooded animals...
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ESH-ə-RIK-ee-ə KOH-ly) is a gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower...
to humans but also to many species of animals. The levels of fecal coliformbacteria from human waste in the river near Varanasi are more than 100 times...
arrivals to the resort island dropped 60 percent due to the increase of coliformbacteria from poor sewage and septic systems on the island. The condition of...
Citrobacter is a genus of Gram-negative, aerobic, rod-shaped coliformbacteria of the Enterobacteriaceae family. Citrobacter spp. cause opportunistic...
with the presence of coliformbacteria, a convenient marker for a class of harmful fecal pathogens. The presence of fecal coliforms (like E. Coli) serves...
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suffers from the city's poor waste treatment. In its waters, "fecal coliformbacteria sometimes spike at 16 times the Brazilian government's 'satisfactory'...
potassium, calcium, manganese, magnesium) Microorganisms such as fecal coliformbacteria (Escherichia coli), Cryptosporidium, and Giardia lamblia; see Bacteriological...
City of Cincinnati's Health Department discovered high levels of coliformbacteria (due to inadequate daily cleansing) in the spigots of dispensers filled...
area's water supply with cancer-causing disinfection byproducts and coliformbacteria. Residents report the water having a strong smell of chlorine, discoloration...
photocatalytic previous composite showed a 98% reduction in total coliformbacteria immediately after filtration. Exposure of the filtered water to sunlight...
A coliphage is a type of bacteriophage that infects coliformbacteria such as Escherichia coli. Coliphage originate almost exclusively from human feces...
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several diseases and species names : Escherichia coli, a type of coliformbacteria normally present in the intestine Adenomatosis polyposis coli, a protein...
becomes necessary. Commonly used indicator bacteria include total coliforms, or a subset of this group, fecal coliforms, which are found in the intestinal tracts...
operational & maintenance (O&M) total coliformbacteria water samples. If the test results are negative for bacteria, the drinking water is considered safe...
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to remove suspended solids, colloidal particles, disease-causing bacteria, some viruses and protozoan cysts. The filtered water after passing through...
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