. Thus, this discharged wet solid sediment
has been called the waste from beer fermentation broth (WBFB)
[16]. The fraction of WBFB in the final beer fermentation broth may
reach about 5%. The compositional analysis of WBFB showed that
it contains high amounts of carbon, nitrogen and other substances
including enzymes and yeast cells [16]. Due to its rich nutrient content
it can be employed for the production of various biochemical
products such as bacterial cellulose and water soluble oligosaccharides
production [17,18]. WBFB also seems to have the potential
to be used in the bio-ethanol production. The treatment and utilization
of WBFB also seems to be suitable from both an economic
as well as an environmental point of view. In the present study,
the activity of the saccharification enzyme in WBFB was verified
and the possibility of the production of ethanol from WBFB by
the simultaneous saccharification and fermentation process without
any additional enzyme, microbial cells and carbohydrates was
investigated.