Evaluation of positive interaction for cell growth between Bifidobacterium adolescentis and Propionibacterium freudenreichii using a co-cultivation system with two microfiltration modules

Using a co-cultivation system developed previously, positive interaction for cell growth between Bifidobacterium adolescentis and Propionibacterium freudenreichii was evaluated. The total dry cell weight (DCW) of these two strains obtained in the co-cultivation system was 1.5–1.7-fold of the sum of the DCWs obtained in two single cultivations of each bacterium.