DESCRIZIONE
The present invention relates to a method for propagating an autotrophic CO 2 assimilating organism, comprising the steps of providing a reaction space comprising an aqueous culture medium, introducing a CO 2 -containing gas stream into the culture medium, cultivating the autotrophic CO 2 assimilating organism in the culture medium. According to the invention, it is provided that the culture medium has a pH of 8.5 to 11, and the CO 2 -containing gas stream is continuously introduced into the culture medium, wherein in particular from the CO 2 -Assimilierenden organism unreacted CO 2 as bicarbonate or carbonate is dissolved in the cultural restaurant.