Individual educators are also using new media. Since the autumn of 2005 ... has been publishing audio podcasts of lectures from her general microbiology class, entitled Microbiology Lectures ...

The competition between different microbes for nutrients in a medium led to some species outgrowing the others. In 1881, Robert Koch noted that bacteria grew optimally when inoculated in broth culture ...

Of paramount importance is the cell line. The cell culture media is the second factor, and third, the configuration of the bioreactor, including settings such as dissolved oxygen or agitation rate.