xenologist

Hi all! I am an undergraduate student at a college in Albany. I am currently running a research experiment studying biofilm formations. However I have run into a roadblock which I hope you can all help me with.. I have cultured Streptococcus Epidermis and Staphylococcus Aureus from environmental samples i took. I used Manitol salt agar plates to culture them. However, the problem i am running into now is that my S. Aureus sample also contains some species of Cornyebacterium. I cannot manage to separate these two microbes. The great tragedy of all of this is that i will eventually have to culture these two microbes together later on in the experiment, but for right now i need to obtain pure cultures. If anyone knows of a way to separate these two organisms i would be greatly appreciative ( + 100 win! to the answerer ) weather it be a special type of agar or broth, or some kind of external chemical that i could introduce.... =) Thank you! I can't get to wait to know you all better on the forums. -Xenologist