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AuthorSungwhan, Kim
AuthorKim, Minsik
AuthorChang, Yong Keun
AuthorKim, Donghyun
Available date2024-07-08T09:26:45Z
Publication Date2023-05-01
Publication NameFuel
Identifierhttp://dx.doi.org/10.1016/j.fuel.2022.126902
CitationKim, S., Kim, M., Chang, Y. K., & Kim, D. (2023). Lipid production under a nutrient-sufficient condition outperforms starvation conditions due to a natural polarization of lipid content in algal biofilm. Fuel, 339, 126902.‏
ISSN00162361
URIhttps://www.sciencedirect.com/science/article/pii/S0016236122037267
URIhttp://hdl.handle.net/10576/56505
AbstractAttached algae cultivation for biofuel production has received proliferated attention given its advantage to reduce harvesting/dewatering costs and contamination risk. In this study, the effects of various nutrient starvation strategies on lipid production through the attached cultivation of Ettlia sp. YC001 was investigated. A detailed study on compositional variation over the depth of biofilms was followed to understand the phenomena within the biofilms under various nutrient conditions. As a result, the nutrient starvation strategy enhanced the lipid content of biofilms by 3–7 %, however, it limited biomass growth significantly. Ultimately, lipid production with sufficient nutrient supply outperformed those with nutrient starvations, reaching up to the maximum lipid productivity of 6.5 ± 0.1 g/m2/day. Compositional analyses over the depth of biofilms identified that high lipid accumulation was induced in the top layer of the biofilm regardless of medium condition as the top layers were naturally under stress from nutrient deficiency and high light exposure.
SponsorThe authors would like to acknowledge the funding provided by the Advanced Biomass R&D Center (ABC) of the Global Frontier Project, funded by the Ministry of Science and ICT (ABC-2010-002978)
Languageen
PublisherElsevier Ltd
SubjectAttached algae cultivation
Algal biofilm
Lipid productivity
Compositional polarization
Nutrient starvation
TitleLipid production under a nutrient-sufficient condition outperforms starvation conditions due to a natural polarization of lipid content in algal biofilm
TypeArticle
Volume Number339
Open Access user License http://creativecommons.org/licenses/by/4.0/
dc.accessType Open Access


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