Agar is a gelatinous substance extracted from seaweed. One of its many uses is to solidify nutrient broth used in growing bacteria on a petri dish. A petri dish is a two piece clear glass or plastic dish which keeps dirt or dust from falling into the sterile medium, but allows air to enter and carbon dioxide to leave.
hello; i want to know :how can i compensate the schrinkage of the agar plate in incubator after applying electrical current? can i compensate it with sodium chloride! thanks
around, enough to fill the bottom or the petri dish.
to inoculate an agar plate you would place bacteria on the agar to grow
There are areas on the agar plate where no bacteria grow because that area was missed when the plate was streaked.
A control in an agar plate is the left over spot where you have put no bacteria swabs on, that way when the bacterias have grown you can see if the bacterias spread onto the control, or if the control stayed disinfected.
Yes. S. aureus can grow on TSA plate because this plate is general purpose medium and has most nutrient for bacteria growth.
Agar is a semi solid medium used to grow bacteria.
to inoculate an agar plate you would place bacteria on the agar to grow
There are areas on the agar plate where no bacteria grow because that area was missed when the plate was streaked.
Agar plates gives you a more visual view of the bacteria growth but is limited in the amount of bacteria that can grow on the plate. With broth, you won't be able to see the bacteria colonies but you will be able to grow much more of the bacteria for sampling.
Because plate count agar is still agar. therefore, it still has all the nutrients that bacteria require to grow.
Use selective media agar plates. Different types of agar will let bacteria grow and inhibit fungal growth, or vice versa.
A control in an agar plate is the left over spot where you have put no bacteria swabs on, that way when the bacterias have grown you can see if the bacterias spread onto the control, or if the control stayed disinfected.
Yes. S. aureus can grow on TSA plate because this plate is general purpose medium and has most nutrient for bacteria growth.
Agar is a semi solid medium used to grow bacteria.
Theoretically, anything. As the agar is a non-selective agar many bugs can grow on nutrient agar. The only ones that can't are ones that have different growing conditions or different characteristics that makes it difficult or impossible to grow, but that is more uncommon.
Gram-positive bacteria grows in Mannitol agar because it contains a high level of salt. This type of agar allows only certain types of bacteria to grow, making it selective.Ê
Agar (a seaweed derivative)
blood or nutrient agar would work, but blood agar will most likely grow more bacteria.