Recent advances in two-phase partitioning bioreactors for the treatment of volatile organic compounds

► State of the art of TPPBs for gas treatment: breakthroughs over the last 5 years. ► Elucidation of VOC mass transfer and uptake mechanisms. ► Optimization of organic phase selection, bioreactor design and modeling. ► Potential of confining biocatalytic activity in the organic phase. ► Discussion on the main limitations and research niches for scale-up.