Sedimentation rate-based screening of oleaginous microalgae for utilization as a direct combustion fuel
- Authors
- Sung, Young Joon; Patel, Anil Kumar; Yu, Byung Sun; Choi, Hong Il; Kim, Jongrae; Jin, EonSeon; Sim, Sang Jun
- Issue Date
- Dec-2019
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Microalgae; High-lipid content strain; Sedimentation rate; Direct combustion fuel
- Citation
- BIORESOURCE TECHNOLOGY, v.293, pp.1 - 8
- Indexed
- SCIE
SCOPUS
- Journal Title
- BIORESOURCE TECHNOLOGY
- Volume
- 293
- Start Page
- 1
- End Page
- 8
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/11596
- DOI
- 10.1016/j.biortech.2019.122045
- ISSN
- 0960-8524
- 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.
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