Largely enhanced bioethanol production through the combined use of lignin-modified sugarcane and xylose fermenting yeast strain

Ja Kyong Ko, Je Hyeong Jung, Fredy Altpeter, Baskaran Kannan, Ha Eun Kim, Kyoung Heon Kim, Hal S. Alper, Youngsoon Um, Sun Mi Lee

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The recalcitrant structure of lignocellulosic biomass is a major barrier in efficient biomass-to-ethanol bioconversion processes. The combination of feedstock engineering via modification in the lignin synthesis pathway of sugarcane and co-fermentation of xylose and glucose with a recombinant xylose utilizing yeast strain produced 148% more ethanol compared to that of the wild type biomass and control strain. The lignin reduced biomass led to a substantially increased release of fermentable sugars (glucose and xylose). The engineered yeast strain efficiently co-utilized glucose and xylose for fermentation, elevating ethanol yields. In this study, it was experimentally demonstrated that the combined efforts of engineering both feedstock and microorganisms largely enhances the bioconversion of lignocellulosic feedstock to bioethanol. This strategy will significantly improve the economic feasibility of lignocellulosic biofuels production.

Original languageEnglish
Pages (from-to)312-320
Number of pages9
JournalBioresource Technology
Volume256
DOIs
Publication statusPublished - 2018 May 1

Fingerprint

Bioethanol
Xylose
Lignin
Yeast
lignin
yeast
Biomass
Feedstocks
Glucose
ethanol
Bioconversion
glucose
Ethanol
biomass
Fermentation
fermentation
Strain control
engineering
Biofuels
biofuel

Keywords

  • Biomass recalcitrance
  • Co-fermentation
  • Lignin modification
  • Lignocellulosic bioethanol
  • Xylose utilizing strain

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cite this

Largely enhanced bioethanol production through the combined use of lignin-modified sugarcane and xylose fermenting yeast strain. / Ko, Ja Kyong; Jung, Je Hyeong; Altpeter, Fredy; Kannan, Baskaran; Kim, Ha Eun; Kim, Kyoung Heon; Alper, Hal S.; Um, Youngsoon; Lee, Sun Mi.

In: Bioresource Technology, Vol. 256, 01.05.2018, p. 312-320.

Research output: Contribution to journalArticle

Ko, Ja Kyong ; Jung, Je Hyeong ; Altpeter, Fredy ; Kannan, Baskaran ; Kim, Ha Eun ; Kim, Kyoung Heon ; Alper, Hal S. ; Um, Youngsoon ; Lee, Sun Mi. / Largely enhanced bioethanol production through the combined use of lignin-modified sugarcane and xylose fermenting yeast strain. In: Bioresource Technology. 2018 ; Vol. 256. pp. 312-320.
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