Fig. 1From: Upgrading syngas fermentation effluent using Clostridium kluyveri in a continuous fermentationSimplified pathways showing the coupling of syngas fermentation, relying on the Wood–Ljungdahl pathway, and biological chain elongation, relying on reverse β-oxidation. The red and green box represents the boundary of the microorganism performing the pathway. More details on both pathways can be found in References [8] and [42]Back to article page