Aqueous ammonia pretreatment of oil palm empty fruit bunches for ethanol production

Young Hoon Jung, In Jung Kim, Jong In Han, In-Geol Choi, Kyoung Heon Kim

Research output: Contribution to journalArticle

64 Citations (Scopus)


Oil palm empty fruit bunches (EFB) were pretreated by aqueous ammonia soaking for ethanol production. Pretreated EFB, which were pretreated at the optimal conditions of 60°C, 12. h, and 21% (w/w) aqueous ammonia, showed 19.5% and 41.4% glucose yields during an enzymatic digestibility test for 96. h when using 15 and 60. FPU of cellulase, respectively. Using the pretreated EFB, simultaneous saccharification and fermentation for 168. h with 5% (w/v) glucan loading and 60. FPU of cellulase and 30. CBU of β-glucosidase per gram glucan resulted in ethanol production of 18.6. g/L titer, 65.6% of theoretical maximum yield, and 0.11. g/L/h of productivity.

Original languageEnglish
Pages (from-to)9806-9809
Number of pages4
JournalBioresource Technology
Issue number20
Publication statusPublished - 2011 Oct 1


  • Aqueous ammonia pretreatment
  • Biomass
  • Ethanol
  • Lignocelluloses
  • Oil palm empty fruit bunches

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

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