What is the best medium for bacteria?

Answer 1

It depends on your bacterium species and what particular procedure you are going to use them for.

LB (Luria Broth) is pretty good and fairly standard (that's 5 g/L Tryptone, 5 g/L yeast extract and 10 g/L NaCl)

TB (Terrific broth) gives quicker doubling times for certain species and strains.

2XTY is another that can be used. With Staphylococcus Aureus, the transition from LB to 2XTY causes them to rapidly decrease their doubling time. We have used this property in practical sessions demonstrating antibiotic effects as the effects of penicillin and other cidal drugs is manifest earlier in the afternoon.

Answer 2

It depends on what kind of bacteria, but generally bacteria like E. coli or Salmonella (which everyone pretty much knows) can grow on a simple LB medium. This stands for Luria Broth which is basically a concoction of nutrients which the bacteria requires for growth. This can be in liquid form or in solid form in which Agar is added to make it like a jello-y consistency.

Answer 3

Agar served in a petri dish.
Slightly warmer than room temperature, but not hot, is generally liked by most Bacteria although it depends on the Bacteria you are using. You need to keep the Agar moist while the Bacteria grows so remember to put the lid on the petri dish once the Bacteria is on the Agar.

Answer 4

Dirt, surfaces left uncleaned, undisposed waste, mucky lavatories, dirty hands, lack of personal hygene after using same and after handling raw foods etc. All bad habits of this nature, like not washing and cleaning up behind yourself in living and cooking spaces will soon spread bacteria. And open cuts and wounds are just a few of the reasons why bacteria spreads. In other words, just do nothing to clean up, or clean yourself, and soon enough, bacteria will take hold... enjoy:-)

If we keep our bodies clean, it follows suit that we will clean our living space as well... and prevent the spread of bacteria. I also add Dettol to Fairy Liquid water and wipe around all the kitchen surfaces and white furniture, on a daily basis, and I add it to the washing liquid, for mopping up the floors, because I own a dog.

I've done this all my adult life (I'm 61 and no one gets ill around my home, or food) and so it pleased me very much, when a doctor suggested doing exactly this, as a very sensible precaution for preventing viruses and tranference of germs, when my son was recovering from double pneumonia and I contracted salmonela poisoning, from the toilets or the food, both used by me in the very dirty hosptial, that nursed him;-)

Answer 5

In the laboratory we use nutrient agar which is a jelly like material. It's made up from a powder just like making regular jelly, poured into petri dishes and then put in an outoclave (pressure cooker) to kill any bacteria. The agar is exposed to the material you're sampling, covered and kept at body temperature.

Answer 6

Agar is the most common bacteria growing medium.

Answer 7

Bacterial species contains different strains. So, the requirement of medium will also be different . We cannot specify particular medium for all bacteria.

Answer 8

anything warm moist and in a high oxygen area

so bread in an airing cupboard would be the best, especially if there are damp clothes there

bread is a good medium as it has a large surface area and allows air to flow through it

Answer 9

Anything left out or in the fridge for too long!! Depends on what bacteria you after - mould spores are the most common I think..

Answer 10

Derek Akorah