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Electronic Journal of Biotechnology
Universidad Católica de Valparaíso
ISSN: 0717-3458
Vol. 4, No. 2, 2001, pp. 103-111
Bioline Code: ej01015
Full paper language: English
Document type: Review Article
Document available free of charge

Electronic Journal of Biotechnology, Vol. 4, No. 2, 2001, pp. 103-111

 en Production of natural and rare pentoses using microorganisms and their enzymes
Ahmed, Zakaria

Abstract

Biochemical methods, usually microbial or enzymatic, are suitable for the production of unnatural or rare monosaccharides. D-Arabitol was produced from D-glucose by fermentation with Candida famata check for this species in other resources R28. D-xylulose can also be produced from D-arabitol using Acetobacter aceti check for this species in other resources IFO 3281 and D-lyxose was produced enzymatically from D-xylulose using L-ribose isomerase (L-RI). Ribitol was oxidized to L-ribulose by microbial bioconversion with Acetobacter aceti IFO 3281; L-ribulose was epimerized to L-xylulose by the enzyme D-tagatose 3-epimerase and L-lyxose was produced by isomerization of L-RI. L-ribose and L-arabinose were prepared biochemically from ribitol by oxidation using Acetobacter aceti IFO 3281 and isomerization using L-RI and L-arabinose isomerase (L-AI), respectively. Other pentoses can be produced as well by cell or enzyme bioconversions.

Keywords
enzyme, microorganism, monosaccharides, pentose, rare sugar

 
© 2001 by Universidad Católica de Valparaíso -- Chile
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