Continuous process for ethanol production by bacte

专利名称：Continuous process for ethanol production

by bacterial fermentation using pH control

发明人：Hugh G. Lawford申请号：US07/0409申请日：19870504公开号：US04840902A公开日：190620

摘要：A continuous process for the production of ethanol by fermentation of anorganism of the genus Zymomonas is provided. The method is carried out by cultivatingthe organism under substantially steady state, anaerobic conditions and under conditionsin which ethanol production is substantially uncoupled from cell growth. By controllingpH in the fermentation medium between a pH of about 3.8 and a pH less than 4. 5, it ispossible to optimize kinetic parameters, such as q.sub.s (g substrate/g biomass-hr.sup.-1)and q.sub.p (g ethanol/g biomass-hr.sup.-1) without adversely affecting ethanolconcentration in the fermentation medium.

申请人：GEORGE WESTON LIMITED

代理机构：Finnegan, Henderson, Farabow, Garrett & Dunner

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