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. 1996 Spring:57-58:233-42.

Screening for L-arabinose fermenting yeasts

B S Dien  1 , C P Kurtzman, B C Saha, R J Bothast
Affiliations
  • PMID: 8669899

Screening for L-arabinose fermenting yeasts

B S Dien et al. Appl Biochem Biotechnol. 1996 Spring.

Abstract

Utilization of pentose sugars (D-xylose and L-arabinose) derived from hemicellulose is essential for the economic conversion of biomass to ethanol. Xylose-fermenting yeasts were discovered in the 1980s, but to date, no yeasts have been found that ferment L-arabinose to ethanol in significant quantities. We have screened 116 different yeasts for the ability to ferment L-arabinose and have found the following species able to ferment the sugar: Candida auringiensis, Candida succiphila, Ambrosiozyma monospora, and Candida sp. (YB-2248). Though these yeasts produced ethanol concentrations of 4.1 g/L or less, they are potential candidates for mutational enhancement of L-arabinose fermentation. These yeasts were also found to ferment D-xylose.

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