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

Explain about long acting insulin, Q. Explain about Long acting insulin? ...

Q. Explain about Long acting insulin? Long acting: Long acting insulin does not work until 4 Lo 8 hours after injecting. Its peak activity occurs 18 to 24 hours after injectio

Financing of healthcare - Principles, Normal 0 false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Abscission - effects of plant growth regulators, Abscission - Effects of Pl...

Abscission - Effects of Plant Growth Regulators Abscission of leaves and fruit is one of the more obvious characteristics of senescence. Leaves do not fall simply because they

State the concept of type locus interaction, State the concept of type locu...

State the concept of type locus interaction Some of the major contributions included the concept of type locus interaction, the analysis of quantitative as opposed to qualitati

Analysis of amino acid sequence on particular peptide, Define Analysis of A...

Define Analysis of Amino Acid sequence on Particular Peptide? The analysis of the relative order or the sequence in which the ammo acids are arranged-along the length of the

Determine the postovulatory phase of x menstrual cycle, Healthy human femal...

Healthy human female X is 25 years old and not pregnant.  During the postovulatory phase of X's menstrual cycle,   A.  there are high blood plasma levels of LH and FSH.

Explain the law of segregation, Explain how the events of meiosis account f...

Explain how the events of meiosis account for the law of segregation and the law of independent assortment. In meiosis, the two alleles of every gene are segregated when the tw

Excitation of heart - circulation, Excitation of Heart - Circulation T...

Excitation of Heart - Circulation The heart has an inherent capacity to contract rhythmically without any external stimulus. Proof of this is obtained when we see that the hea

How are the proteins important in metabolism of lens, How are the proteins ...

How are the proteins important in metabolism of lens? Proteins Physical slate of protein is important for transparency of lens. Morner first time classified protein of l

Representation of the metabolism, Biological effects: Aflatoxins are acute ...

Biological effects: Aflatoxins are acute hepatotoxins and are known to be carcinogenic in some animal species as rat. Aflatoxin B1 is acutely toxic and is responsible for liver nec

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