Liquefying aqueous starch slurry followed by saccharification wi

Details Liquefying aqueous starch slurry followed by saccharification wi Liquefying aqueous starch slurry followed by saccharification wi

1981-01-21

1982-05-18

Marantz, Sidney

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing oxygen-containing organic compound

127 38, 127 462, 203 19, 203DIG13, 435 99, C13K 106, C12P 706

Patent

active

043306250

ABSTRACT:
Starch derived from a dry milled cereal grain such as corn or milo is hydrolyzed to provide a sterile aqueous fermentable sugar solution which is especially adapted for fermentative conversion to ethanol with minimum thermal expenditure. Following an initial acid-catalyzed hydrolysis to thin, or liquefy, the starch, substantially all of the water insoluble protein and oil components, and a portion of the water soluble components, e.g., sugars, proteins and vitamins, are separately recovered from the partial starch hydrolysate with the water solubles being recycled to the system. Thereafter, the partial starch hydrolysate is subjected to further hydrolysis in the presence of an acidic cationic exchange resin as catalyst to provide an aqueous solution of fermentable sugar.

REFERENCES:
patent: 3371018 (1968-02-01), Ewing
patent: 3463770 (1969-08-01), Fellers
patent: 3519431 (1970-07-01), Wayne
patent: 3616220 (1971-10-01), Nisbet
patent: 3939281 (1976-02-01), Schwengers
patent: 4255518 (1981-03-01), Muller
patent: 4256541 (1981-03-01), Muller
patent: 4266027 (1981-05-01), Muller

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