Ethanol production from lignocellulosic biomass by simultaneous saccharification and fermentation employing the reuse of yeast and enzyme

Jun Suk Kim, Kyung Keun Oh, Seung Wook Kim, Yong Seob Jeong, Suk In Hong

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Simultaneous saccharification and fermentation (SSF) experiments were carried out with a lignocellulosic biomass. The effects of temperature on enzymatic saccharification and the ethanol fermentation were also investigated. The batch SSF process gave a final ethanol concentration of 10.44 g/l and equivalent glucose yield of 0.55 g/g, which was increased by 67% or higher over the saccharification at 42°C. The optimal operating condition was found to vary in several parameters, such as the transmembrane pressure, permeation rate, and separation coefficient, related to the SSF combined with membrane system (semi-batch system). When the fermentation was operated in a semi-batch mode, the efficiency of the enzymes and yeast lasted three times longer than in a batch mode.

Original languageEnglish
Pages (from-to)297-302
Number of pages6
JournalJournal of microbiology and biotechnology
Volume9
Issue number3
Publication statusPublished - 1999 Jun

Keywords

  • Fuel ethanol
  • Lignocellulosic biomass
  • Semi-batch simultaneous saccharification and fermentation
  • Ultrafiltration

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

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