In Simultaneous Saccharification and Co-fermentation (SSCF) process,
glucose and xylose are co-fermented in the same reactor. Strains of
Saccharomyces cerevisiae and Zymomonas mobilis are genetically engineered
to co-ferment both glucose and xylose (Dien et al., 2003; Hahn-Hägerdal et
al., 2007; Öhgren et al., 2006; Zhang et al., 1995).