To utilize cassava pulp containing abundant starch and cellulosic
fiber, its components were converted to ethanol using S. cerevisiae
strain K7G displaying glucoamylase on its cell surface, which was
constructed using a cell surface-engineering system based on aagglutinin.
The strain K7G effectively produced high yields of
ethanol from cassava pulp pretreated by hydrothermal reaction
(140 C for 1 h) and then by cellulase to hydrolyze the cellulose in
the pulp.