history of coagulase and oxidase test
Question
BatIN
excuse me but i need to know history behind oxidase and coagulase tests, its very important to me.
Germs on bathroom Faucet
Question
Anonymous
A lot of people touching something dirty in the bathroom then touch the faucet to turn it on. They wash there hands and then A lot of people then use their bare hands to turn off the faucet and recontaminate ...
Mold growth on cheese not working
Question
Anonymous
I am concerned about my Biology 2 lab experiment we are supposed to grow something and be able to measure it for 10 days. My experiment is seeing how pH affects mold growth on Land O Lakes Yellow American cheese. ...
What agar media is ideal to selectively grow enterococci?
Question
gabc
I am doing a project and i need to extract microbes from sand and grow just the enterococci. Is there an agar media that selectively grows enterococci?
I would also need to selectively grow e.coli and coliforms, but i found that ...
of what practical significance of capsule-forming bacteria in industry?
Question
Anonymous
HOW TO KNOW HOW OLD BACTERIA IS
Question
Anonymous
How do microbiologists estimate how old bacteria spores are? What are the processes or methods in knowing the age of bacterial spores?
Agar plate discoloration
Question
Esraa
Hello! I am currently a student doing a research paper about using weak organic acids as preservatives and microbial growth inhibition so I did an experiment. However, I got a small problem where there was no growth on the plates ...
Absorbance vs cell concentration from spectrophotometry
Question
Dawt
Hi dear,
I have plotted a graph for absorbance at 540 nm vs cells concentration of yeast for dilutions from 1/2 to 1/128. Using this graph, I can find cell concentration of unknown yeast after measuring its absorbance. It is possible ...
Is Klebsiella mobilis a lactose fermenter?
Question
trish
There are two demos in my lab for K. mobilis on a MacConkey Agar plate. One of them shows as yellow and the other shows as very very pink. So which one is it?
I know that Klebsiella pneumoniae is a ...
Inhibitor Zone
Question
Messi
Hello Everyone..
I am working on herbal extract to test thier effective on bacteria / + - / but the inhibitor zone doesn't show clear .. it's It is scattered, not regular ! I used Disk Dissolves to test the effect ...