2-Propanol degradation by Sulfolobus solfataricus

Helia Radianingtyas, Phillip C. Wright

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Sulfolobus solfataricus used 2-propanol and 2-propanone (acetone) when grown in static cultures at 78 °C with or without glucose at 10 g l-1. The presence of 3.92 g 2-propanol l-1 in both cases inhibited growth. However, acetone accumulation following 2-propanol depletion suggested that 2-propanol was co-metabolized via the acetone metabolic pathway. Glucose at 10 g l-1 increased 2-propanol and acetone utilization from 0.93 g l-1 to 1.77 g l-1 and from 0.11 g l-1 to 1.62 g l-1, respectively. Without glucose, immobilized S. solfataricus cells increased the 2-propanol removal rate to 0.035 g l-1 h-1, compared to 0.0012 g l-1 h-1 by its suspended counterpart. The results suggest the establishment of an immobilized reactor configuration is preferential for the treatment of high temperature solvent waste streams by this acidothermophilic Crenarchaeon.

Original languageEnglish
Pages (from-to)579-583
Number of pages5
JournalBiotechnology Letters
Volume25
Issue number7
DOIs
Publication statusPublished - Apr 2003

Keywords

  • Biodegradation
  • Biofilm
  • Hyperthermophilic
  • Immobilized
  • Isopropanol

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