Continuous cellulosic bioethanol co-fermentation by immobilized Zymomonas mobilis and suspended Pichia stipitis in a two-stage process

Ferdian Wirawan, Chieh Lun Cheng, Yung Chung Lo, Chun Yen Chen, Jo Shu Chang, Shao Yuan Leu, Duu Jong Lee

研究成果: Article

1 引文 斯高帕斯(Scopus)

摘要

Bioethanol produced from lignocellulosic materials has been considered as one of the most promising fuels to replace fossil fuels. Immobilized yeasts or bacteria have been frequently used in continuous system due to its feasibility for repeated use with high biomass retention during the continuous process. In this study, continuous SHcF (separate hydrolysis and co-fermentation) and SScF (simultaneous saccharification and co-fermentation) were evaluated for ethanol production from alkaline pretreated sugarcane bagasse using Zymomonas mobilis (PVA immobilized cells) and Pichia stipitis (suspended cells). In SHcF fermentation, the ethanol yield and productivity of 0.36 g ethanol/g cellulose (corresponding to 70.65% of theoretical yield) and 1.868 g/L/h were achieved. In contrast, SScF system resulted in an ethanol yield of 0.414 g ethanol/g cellulose (corresponding to 81.17% of theoretical yield) and ethanol productivity of 0.705 g/L/h. The performance of the two systems are compared and discussed.

原文English
文章編號114871
期刊Applied Energy
266
DOIs
出版狀態Published - 2020 五月 15

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Energy(all)
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law

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