sp. nov. and sp. nov., novel soil streptomycetes metabolizing mutan and alternan.

Six bacterial strains, Mut1, Mut2, Alt1, Alt2, Alt3, and Alt4, were isolated from soil samples collected in parks in Gothenburg, Sweden, based on their ability to utilize the insoluble polysaccharides α-1,3-glucan (mutan; Mut strains) or the mixed-linkage α-1,3/α-1,6-glucan (alternan; Alt strains). Analysis of 16S rRNA gene sequences identified all strains as members of the genus . The genomes of the strains were sequenced and subsequent phylogenetic analyses identified Mut2 as a strain of and Alt1, Alt2 and Alt4 as strains of while Mut1 and Alt3 were most closely related to the type strains NBRC 101007 and NRRL ISP-5137, respectively.

Towards enhancement of gas-liquid mass transfer in bioelectrochemical systems: Validation of a robust CFD model.

Mass transfer has been identified as a major bottleneck in gas fermentation and microbial conversion of carbon dioxide to chemicals. We present a pragmatic and validated Computational Fluid Dynamics (CFD) model for mass transfer in bioelectrochemical systems. Experiments were conducted to measure mixing times and mass transfer in a Duran bottle and an H-cell.