Fig. 6From: Immobilization techniques improve volumetric hydrogen productivity of Caldicellulosiruptor species in a modified continuous stirred tank reactorFraction of C. kronotskyensis and C. owensensis in biofilm samples (Cases I–L). C. kronotskyensis (grey bar) and C. owensensis (black bar). A Co-culture without carrier (Case I). B Co-culture with acrylic fibres (Case J). C Co-culture with acrylic fibres and chitosan (Case K). D Co-culture with chitosan (Case L)Back to article page