Production of D-arabitol by a newly isolated Kodamaea ohmeri

Bioprocess Biosyst Eng. 2010 Jun;33(5):565-71. doi: 10.1007/s00449-009-0378-x. Epub 2009 Sep 19.

Abstract

A new yeast, isolated from natural osmophilic sources, produces D-arabitol as the main metabolic product from glucose. According to 18S rRNA analysis, the NH-9 strain belongs to the genus Kodamaea. The optimal culture conditions for inducing production of D-arabitol were 37 degrees C, neutral pH, 220 rpm shaking, and 5% inoculum. The yeast produced 81.2 +/- 0.67 g L(-1) D-arabitol from 200 g L(-1) D-glucose in 72 h with a yield of 0.406 g g(-1) glucose and volumetric productivity Q(P) of 1.128 g L(-1) h(-1). Semi-continuous repeated-batch fermentation was performed in shaker-flasks to enhance the process of D-arabitol production by Kodamaea ohmeri NH-9 from D-glucose. Under repeated-batch culture conditions, the highest volumetric productivity was 1.380 g L(-1) h(-1).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Glucose / metabolism
  • RNA, Fungal / genetics
  • RNA, Ribosomal, 18S / genetics
  • Saccharomycetales / genetics
  • Saccharomycetales / growth & development*
  • Saccharomycetales / isolation & purification
  • Saccharomycetales / metabolism
  • Sugar Alcohols / metabolism*

Substances

  • RNA, Fungal
  • RNA, Ribosomal, 18S
  • Sugar Alcohols
  • Glucose
  • arabitol