Appeal No. 94-2999
Application 07/672,286
APPENDIX
8. A method of sterilizing a fermentation vessel used in a
batch fermentation process that includes an associated alcohol
distillation or purification facility for purifying alcohol
produced in the fermentation vessel to a higher alcohol
concentration, wherein said fermentation vessel is intermittently
emptied of fermented product, including alcohol, and cleaned,
comprising the steps of:
withdrawing a sterilizing alcohol in aqueous solution from
the distillation or purification facility with a sufficient
concentration of alcohol to kill undesirable microorganisms;
sterilizing said emptied and cleaned fermentation vessel by
introducing only said sterilizing alcohol in aqueous solution
into the fermentation vessel;
withdrawing said sterilizing alcohol in aqueous solution
from the fermentation vessel following the sterilization of said
fermentation vessel and returning the sterilizing alcohol in
aqueous solution to said distillation or purification facility.
25. A process for producing alcohol, comprising the steps
of:
placing a batch of fermentable feedstock or substrate in a
fermentation vessel with water and alcohol producing fungi;
allowing the fungi to ferment the feedstock or substrate to
produce a mixture having a liquid fraction comprising alcohol and
water and a solid fraction comprising residual solid by-products
of the fermentation process;
removing the liquid and solid fractions from the
fermentation vessel;
separating the solid fraction from the liquid fraction;
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Last modified: November 3, 2007