Ethanol production from oil palm trunks treated with aqueous ammonia and cellulase

Young Hoon Jung, In Jung Kim, Jae-Jin Kim, Kyeong Keun Oh, Jong In Han, In-Geol Choi, Kyoung Heon Kim

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Oil palm trunks are a possible lignocellulosic source for ethanol production. Low enzymatic digestibility of this type of material (11.9% of the theoretical glucose yield) makes pretreatment necessary. An enzymatic digestibility of 95.4% with insoluble solids recovery of 49.8% was achieved after soaking shredded oil palm trunks in ammonia under optimum conditions (80°C, 1:12 solid-to-liquid ratio, 8h and 7% (w/w) ammonia solution). Treatment with 60 FPU of commercial cellulase (Accellerase 1000) per gram of glucan and fermentation with Saccharomyces cerevisiae D5A resulted in an ethanol concentration of 13.3g/L and an ethanol yield of 78.3% (based on the theoretical maximum) after 96h. These results indicate that oil palm trunks are a biomass feedstock that can be used for bioethanol production.

Original languageEnglish
Pages (from-to)7307-7312
Number of pages6
JournalBioresource Technology
Volume102
Issue number15
DOIs
Publication statusPublished - 2011 Aug 1

Fingerprint

Palm oil
Cellulase
Ammonia
ethanol
Ethanol
ammonia
digestibility
oil
Bioethanol
Glucans
Yeast
Fermentation
Feedstocks
fermentation
Glucose
glucose
Biomass
Recovery
liquid
biomass

Keywords

  • Ammonia pretreatment
  • Ethanol
  • Lignocellulose
  • Oil palm trunks

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Ethanol production from oil palm trunks treated with aqueous ammonia and cellulase. / Jung, Young Hoon; Kim, In Jung; Kim, Jae-Jin; Oh, Kyeong Keun; Han, Jong In; Choi, In-Geol; Kim, Kyoung Heon.

In: Bioresource Technology, Vol. 102, No. 15, 01.08.2011, p. 7307-7312.

Research output: Contribution to journalArticle

Jung, Young Hoon ; Kim, In Jung ; Kim, Jae-Jin ; Oh, Kyeong Keun ; Han, Jong In ; Choi, In-Geol ; Kim, Kyoung Heon. / Ethanol production from oil palm trunks treated with aqueous ammonia and cellulase. In: Bioresource Technology. 2011 ; Vol. 102, No. 15. pp. 7307-7312.
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