b. High efficiency of material conversion
It is difficult for Rhizopus strain to produce
glucoamylase, which is important for the commercial
production of glucose, from gelatinized starch under
liquid culture medium. Rhizopus strain can produced a
large amount of glucoamylase from using liquefied starch,
which is produced by reacting α-amylase with gelatinized
starch14). It is well known that α-amylase is produced from
Bacillus strain15). Thus, mixed culture of Rhizopus strain
and Bacillus strain produced at high levels of Glucoamylase
production from gelatinized starch16).