Biocomponent-based microalgal transformations into biofuels during the pretreatment and fermentation process

Geon Soo Ha, Marwa M. El-Dalatony, Do Hyeon Kim, El Sayed Salama, Mayur B. Kurade, Hyun Seog Roh, Abd El-Fatah Abomohra, Byong Hun Jeon

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Microalgal cell wall integrity and composition have a significant impact on the fermentation process and biofuel recovery. In this study, various biofuels (bioethanol, higher alcohols (C3-C5), and biodiesel) were produced by the fermentation of carbohydrates and proteins, and transesterification of lipids from three different microalgal strains (Pseudochlorella sp., Chlamydomonas mexicana, and Chlamydomonas pitschmannii), each possessing different proportions of bioconstituents (carbohydrates, proteins, and lipids). Changes in the cell wall structure and thickness were observed before and after fermentation using transmission electron microscopy. Pseudochlorella sp. showed the highest yields of bioethanol (0.45 g-ethanol/g-carbohydrates), higher alcohols (0.44 g-higher alcohols/g-proteins), and biodiesel (0.55 g-biodiesel/g-lipids), which consequently revealed a maximum energy recovery (42%) from whole constituents. This study suggests that different physiological properties, including cell wall thickness and the proportion of bioconstituents in microalgae, could have a significant impact on the pretreatment and fermentation efficiencies for biofuels production.

Original languageEnglish
Article number122809
JournalBioresource technology
Volume302
DOIs
Publication statusPublished - 2020 Apr

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Biocomponent-based microalgal transformations into biofuels during the pretreatment and fermentation process'. Together they form a unique fingerprint.

  • Cite this

    Ha, G. S., El-Dalatony, M. M., Kim, D. H., Salama, E. S., Kurade, M. B., Roh, H. S., El-Fatah Abomohra, A., & Jeon, B. H. (2020). Biocomponent-based microalgal transformations into biofuels during the pretreatment and fermentation process. Bioresource technology, 302, [122809]. https://doi.org/10.1016/j.biortech.2020.122809