Fermentation method producing ethanol

Patent · Wed Jan 01 00:00:00 EST 1986

OSTI ID:865758

Wang, Daniel I. C. ^[1]; Dalal, Rajen ^[2]

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1. Belmont, MA
2. Chicago, IL

Ethanol is the major end product of an anaerobic, thermophilic fermentation process using a mutant strain of bacterium Clostridium thermosaccharolyticum. This organism is capable of converting hexose and pentose carbohydrates to ethanol, acetic and lactic acids. Mutants of Clostridium thermosaccharolyticum are capable of converting these substrates to ethanol in exceptionally high yield and with increased productivity. Both the mutant organism and the technique for its isolation are provided.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: XR-9-8109-1; EG-77-C-01-4042
• Assignee: Massachusetts Institute of Technology (Cambridge, MA)
• Patent Number(s): US 4568644
• Application Number: 06/640,247
• OSTI ID: 865758
• Country of Publication: United States
• Language: English

Related Subjects

fermentation
method
producing
ethanol
major
product
anaerobic
thermophilic
process
mutant
strain
bacterium
clostridium
thermosaccharolyticum
organism
capable
converting
hexose
pentose
carbohydrates
acetic
lactic
acids
mutants
substrates
exceptionally
yield
increased
productivity
technique
isolation
provided
fermentation process
lactic acid
producing ethanol
method producing
mutant strain
fermentation method
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