Chemistry: molecular biology and microbiology – Enzyme – proenzyme; compositions thereof; process for... – Hydrolase
Reissue Patent
2011-01-18
2011-01-18
Saidha, Tekchand (Department: 1652)
Chemistry: molecular biology and microbiology
Enzyme , proenzyme; compositions thereof; process for...
Hydrolase
C435S202000, C435S205000
Reissue Patent
active
RE042046
ABSTRACT:
The present invention relates to a granular starch hydrolyzing enzyme composition comprising an acid stable alpha amylase (asAA) having granular starch hydrolyzing activity. The invention also relates to a one-step method for producing an alcohol which comprises contacting a granular starch substrate with an acid-stable alpha amylase (asAA) having granular starch hydrolyzing (GSH) activity and a glucoamylase (GA) in a fermentation step which also comprises ethanologenic microorganisms at a temperature of 25-40° C. to obtain a fermentation broth having 5 to 20% ethanol.
REFERENCES:
Kajiwara, Y. et al., Production of Acid-Stable α-Amylase byAspergillus kawachiiduring BarleyShochu-KojiProduction,Journal of Fermentation and Bioengineering,84(3): 224-227, 1997.
International Search Report for PCT/US04/41276, filed Dec. 9, 2004.
Dunn-Coleman Nigel
Lantero, Jr. Oreste J.
Lantz Suzanne E.
Pepsin Michael J.
Shetty Jayarama K.
Danisco US Inc.
Saidha Tekchand
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