Sedimentation rate-based screening of oleaginous microalgae for utilization as a direct combustion fuel

Young Joon Sung, Anil Kumar Patel, Byung Sun Yu, Hong Il Choi, Jongrae Kim, Eon Seon Jin, Sang Jun Sim

Research output: Contribution to journalArticle

Abstract

The co-combustion of microalgae biomass with coal has the potential to significantly reduce CO2 emissions by eliminating expensive and carbon-emitting downstream processes. In this study, the utilization of microalgal biomass as a direct combustion fuel in co-firing industries and the screening of potential oleaginous strains of high calorific value was investigated. High-lipid accumulating mutants were selected from mutant mixtures based on cell density using differential sedimentation rates. Of the mutant strains obtained in the top phase of the separation medium, 72% showed a higher lipid content than the wild-type strain. One mutant strain exhibited a 57.3% enhanced lipid content and a 9.3% lower heating value (LHV), both indicators of direct combustion fuel performance, compared to the wild-type strain. Our findings indicate that sedimentation rate-based strain selection allows for the easy and rapid screening of high-lipid content algal strains for the use of microalgae as direct combustion fuels.

Original languageEnglish
Article number122045
JournalBioresource Technology
Volume293
DOIs
Publication statusPublished - 2019 Dec 1

Fingerprint

Sedimentation
sedimentation rate
Screening
combustion
lipid
Lipids
Biomass
biomass
Calorific value
Coal
coal
heating
Carbon
mutant
screening
industry
carbon
Heating
Industry

Keywords

  • Direct combustion fuel
  • High-lipid content strain
  • Microalgae
  • Sedimentation rate

ASJC Scopus subject areas

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

Cite this

Sedimentation rate-based screening of oleaginous microalgae for utilization as a direct combustion fuel. / Sung, Young Joon; Patel, Anil Kumar; Yu, Byung Sun; Choi, Hong Il; Kim, Jongrae; Jin, Eon Seon; Sim, Sang Jun.

In: Bioresource Technology, Vol. 293, 122045, 01.12.2019.

Research output: Contribution to journalArticle

Sung, Young Joon ; Patel, Anil Kumar ; Yu, Byung Sun ; Choi, Hong Il ; Kim, Jongrae ; Jin, Eon Seon ; Sim, Sang Jun. / Sedimentation rate-based screening of oleaginous microalgae for utilization as a direct combustion fuel. In: Bioresource Technology. 2019 ; Vol. 293.
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