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Biotechnol Lett. 2007 Mar;29(3):397-404. Epub 2006 Dec 12.

Low salt medium for lactate and ethanol production by recombinant Escherichia coli B.

Author information

1
Institute of Biotechnology, National Autonomous University of Mexico, Cuernavaca, Morelos, Mexico.

Abstract

Individual nutrient salts were experimentally varied to determine the minimum requirements for efficient L (+)-lactate production by recombinant strains of Escherichia coli B. Based on these results, AM1 medium was formulated with low levels of alkali metals (4.5 mM and total salts (4.2 g l(-1)). This medium was equally effective for ethanol production from xylose and lactate production from glucose with average productivities of 18-19 mmol l(-1) h(-1) for both (initial 48 h of fermentation).

PMID:
17160622
DOI:
10.1007/s10529-006-9252-y
[Indexed for MEDLINE]

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