Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing compound containing saccharide radical
Patent
1995-11-30
1999-11-09
Scheiner, Toni R.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing compound containing saccharide radical
435151, 435161, C12P 1914, C12P 706
Patent
active
059812370
ABSTRACT:
A method and apparatus are disclosed for liquefaction of starch derived from cereal grain. A single-screw extruder is utilized to gelatinize a starch substrate providing significant advantage over prior art jet steam cookers. Liquefaction of the gelatinized starch substrate is completed by post-extrusion bioreaction of the starch with a static-mixer reactor. An alpha-amylase enzyme is utilized to facilitate the liquefaction process. The Liquefacted starch substrate is heated after bioreaction to achieve complete digestion of remaining starch inclusions. Liquefacted starch substrates utilizing the disclosed process significantly reduce the amount of energy required in the conversion of starch to fermentable sugars in the production of ethanol.
REFERENCES:
patent: 5059439 (1991-10-01), Wenger et al.
Author: Galen J. Rokey, Title: Extrusion Cooking of Cereal Grain as an Initial Process in the Production of Ethanol Date: Aug. 21, 1990, pp. 529-542, Pub. Wenger Manufacturing, Inc.
Author: Daryl D. Grafelman, Michael M. Meagher, Title: Liquefaction of Starch By a Single-screw Extruder and Post-Extrusion Static-mixer Reactor, Date: Feb. 18, 1994, pp. 529-542, Pub. Nebraska Agricultural Experiment Station, Lincoln, NE.
Davidson, V.J. et al. 1984. J. Food Science 49: 453-458.
Weu, L.F. et al. 1990. Cereal Chemistry 67(3): 268-275.
Lee, Y.C. et al. J. Food Science 55(5): 1365-1366, 1372.
Lammers, G. et al. 1994. Chemical Eng. Res. & Design 72(A5): 728-732.
Tsayev, A.I et al. 1992. Polymer Eng. & Sci. 32(2): 85-93.
Lammers J. et al. 1993. Starch 45(7): 227-232.
Grafelman Daryl D.
Meagher Michael M.
Board of Regents
Scheiner Toni R.
LandOfFree
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