Procedure for preparation of selective & differential medium, Biology

Assignment Help:

Procedure for Preparation of Selective and Differential Medium

Now prepare the MacConkey agar medium following the steps given herewith:

1. Weigh and dissolve all ingredients except agar one by one in 500 ml of distilled water.

2. Make the volume to 1000 ml with distilled water and set the pH to 7.3.

3. Add agar and dissolve it by heating.

4. Autoclave the medium at 15 psi for 15-20 minutes.

5. After cooling to 45oC, dispense the medium aseptically into sterile petri plates.

6. Allow to solidify and then inoculate with the given cultures.

For inoculation, divide the plate into different sections by marking the bottom of the dish. Label each section with the name of the organism to be inoculated. Inoculate the plate with different organisms by making a single line of inoculation of each organism at appropriate section/place as shown in margin Figure.

7. Incubate the plates in inverted position for 24 hours at 37oC and then record observations.

 


Related Discussions:- Procedure for preparation of selective & differential medium

Define prevention of idd by iodized oil, Define prevention of idd by Iodize...

Define prevention of idd by Iodized Oil? The other approach employed as a specific measure for women and children in hyper-endemic areas is injection of iodized oil. Intramuscu

Explain hiv/aids, Explain HIV/AIDS HIV/AIDS is another example of  chro...

Explain HIV/AIDS HIV/AIDS is another example of  chronic infections.  Its existence was discovered recently in 1981. The spread  of  HIV infection  is widespread  and  can  pro

Aujeszky''s disease, Aujeszky's disease This is primarily a disease of...

Aujeszky's disease This is primarily a disease of pigs, which serve as the principal reservoir host. The secondary hosts include cattle, horse, sheep, goat, dog and cat but hu

What is the phase of the menstrual cycle, In general what is the phase of t...

In general what is the phase of the menstrual cycle when copulation may lead to fecundation? Although this is not a rule, to be effective fecundation in general must happen wit

What will occur to the levels above of secondary consumers, In the short te...

In the short term what will occur to the levels above and below a population of secondary consumers of a numeric pyramid if a large number of individuals from this population dies?

Define solvent chemical potentials from phase equilibria, Define Solvent Ch...

Define Solvent Chemical Potentials from Phase Equilibria? Previously explained how we can evaluate the activity coefficient γ m,B of a nonelectrolyte solute of a binary soluti

Corpus allatum and prothoracic gland, Corpus Allatum and Prothoracic Gland ...

Corpus Allatum and Prothoracic Gland Corpus Allatum The corpus allatum is situated in the neck region of insects. It is generally a rounded, solid and translucent struc

Information processing in sensory neuron, Information Processing in Sensory...

Information Processing in Sensory Neuron You have previously seen that the sensory neuron transmits the information it receives, as an action potential along its axon. We desc

What is the principle of automated blood cell counters, Question 1 Discuss...

Question 1 Discuss various methods of blood collection in a laboratory. Add a note on collection of blood by using vacutainers. Make a table indicating the color of vacutainer tub

Pneumonia, Pneumonia: Pneumonia is an inflammation with consolidation ...

Pneumonia: Pneumonia is an inflammation with consolidation  of  the parenchyma of  the lung. It occurs most commonly in infants and young children and may occur as primary dis

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