[0177] To sum up, the technical and biological validation of the cultivation of probiotics like Lactobacillus spp. and Bifidobacterium bifidum in the container assembly 200 in combination with the anaerobic gassing lid are shown. The microfluidic chip technology combined with the direct nitrogen gassing of the sample container 18 via the gassing lid enables the simultaneous performance of pH control, feeding and direct nitrogen gassing in small scale cultivation systems. It is a suitable system for the cultivation of anaerobic bacteria.