Another method of process integration is the Consolidated BioProcessing
(CBP), in which one single microorganism is used for hydrolysis and
fermentation steps. This potentially reduces the capital costs and increases process efficiency (Lynd et al., 2002). However, microorganisms which can
both produce enzymes for hydrolysis of biomass and then ferment released
sugars are still in the early development stage (Lynd et al., 2005).