Explain procedure for test of presence of coliform bacteria, Biology

Assignment Help:

Explain Procedure for the test of Presence of Coliform Bacteria?

This test procedure is in continuation to the presumptive test procedure followed on last experiment. Now carry out this exercise following the steps enumerated herewith.

1. Label the EMB/Endo agar plates with the source of the water sample.

2. Streak the plates with the respective positive or doubtful presumptive broth culture using sterile inoculating loop.

3. Incubate all the culture plates in an inverted position for 24 hours at 37°C.

4. Observe the plates for the presence or absence of E.coli colonies.

Appearance of typical colonies with dark centres and metallic sheen indicates positive confirmed test, i.e., water is non potable.


Related Discussions:- Explain procedure for test of presence of coliform bacteria

Tanco beans plant, what are the origin, morphology, active constituents, us...

what are the origin, morphology, active constituents, uses and market preparation of tanco beans ?

Corpus allatum and juvenile hormone, Corpus Allatum and Juvenile Hormone ...

Corpus Allatum and Juvenile Hormone The corpora allata are rounded glands attached to the posterior side of every corpus cardiacum making a compact body just behind the brain.

#title.humans and environment., what are the two main pollutants that contr...

what are the two main pollutants that contribute to aci rain

Anti lipid drugs-peri operative problems, Anti Lipid Drugs :  The current ...

Anti Lipid Drugs :  The current thinking is that it is very important to keep lipid levels low. It helps in preventing atherosclerotic changes in venous grafts and the long-term p

Explain class adverse effects of nnrti, Class adverse effects of NNRTI ...

Class adverse effects of NNRTI All NNRTIs can cause a rash that is sometimes severe. NNRTIs are metabolized by and can affect hepatic CYP 450 isozymes; drug interactions can o

What nerve is being compressed, what major nerve do you think is being comp...

what major nerve do you think is being compressed when a person often feel pain in the posterior surface of the thigh radiating to the area behind the knee and where is the likely

Cytoplasm plays the most important pathogenetic role, The formation of surf...

The formation of surface blebs caused by ischemia reflects in part plasma membrane injury, but also a sign of cytoplasmic injury. Which filamentous component of the cytoplasm plays

Define protein requirement during tuberculosis, Define Protein requirement ...

Define Protein requirement during tuberculosis Protein : Achronic infection  is marked by a prolonged duration of fever. This leads to wasting of muscles, increased nitrogen

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd