How to eliminate gram positive bacteria from a mixture of gram-negative bacteria?

Gram (-) bacteria are resitant to things that Gram positive aren't.





You could eliminate g+ bacteria one of two ways from a culture of both of these types of bacteria.





Gram positive are suceptible to pencilin like antibiotics. Infusing those antibiotics into a culture with both of these bacteria will degrade the cell walls of the gram positive bacteria. They will not affect the gram negative bacteria.








Secondly, gram positive bacteria need specific amino acids and nutrients that gram negative bacteria can synthesize on their own. By creating a specific culture medium, one can kill off the gram positive bacteria.

How to eliminate gram positive bacteria from a mixture of gram-negative bacteria?
any kind of penicillin will do it. Other antibiotics can be effective against gram -, so check before.....

camellia