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Photoperiod-induced mixotrophic metabolism in Chlorella vulgaris for high biomass and lipid to biodiesel productions using municipal wastewater medium

The performances of autotrophic and heterotrophic metabolisms in Chlorella vulgaris were assessed from various photoperiod regimes for the sustainable microalgal biodiesel production. Accordingly, the cellular biomass growth and lipid content in relation to the organic nutrient removals from municip...

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Main Authors: Leong, W.H., Saman, N.A.M., Kiatkittipong, W., Assabumrungrat, S., Najdanovic-Visak, V., Wang, J., Khoo, K.S., Lam, M.K., Mohamad, M., Lim, J.W.
Format: Article
Published: Elsevier Ltd 2022
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121906219&doi=10.1016%2fj.fuel.2021.123052&partnerID=40&md5=fe5ea09d17393e3f5c4fb5a169949b1d
http://eprints.utp.edu.my/28601/
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spelling my.utp.eprints.286012022-03-07T07:59:41Z Photoperiod-induced mixotrophic metabolism in Chlorella vulgaris for high biomass and lipid to biodiesel productions using municipal wastewater medium Leong, W.H. Saman, N.A.M. Kiatkittipong, W. Assabumrungrat, S. Najdanovic-Visak, V. Wang, J. Khoo, K.S. Lam, M.K. Mohamad, M. Lim, J.W. The performances of autotrophic and heterotrophic metabolisms in Chlorella vulgaris were assessed from various photoperiod regimes for the sustainable microalgal biodiesel production. Accordingly, the cellular biomass growth and lipid content in relation to the organic nutrient removals from municipal wastewater medium were evaluated from the various light/dark photoperiod cycles amidst mixotrophic metabolism. The mixotrophic treatment had been proven effective in producing high microalgal biomass and lipid while alternating its autotrophic and heterotrophic metabolisms. Thus, exploiting the optimum cellular biosynthesis pathways in inducing both biomass growth and lipid accumulation. Amidst mixotrophy, prolonging light condition would favour biomass growth, whilst extending dark condition had elevated cell lipid content. Accordingly, the 16:8 (light:dark) hours/cycle photoperiod was found adequate in yielding high biomass and lipid productions (0.89 and 0.16 g/L, respectively), while achieving near complete removal (>94) of chemical oxygen demand and ammonium-nitrogen from municipal wastewater. The dominant FAME constituents of C16 and C18 comprised of 90.65-100 of total FAME with the high unsaturation degree could proffer an excellent quality of microalgal biodiesel with low pour point, suitable for application in cold climate regions. © 2021 Elsevier Ltd Elsevier Ltd 2022 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121906219&doi=10.1016%2fj.fuel.2021.123052&partnerID=40&md5=fe5ea09d17393e3f5c4fb5a169949b1d Leong, W.H. and Saman, N.A.M. and Kiatkittipong, W. and Assabumrungrat, S. and Najdanovic-Visak, V. and Wang, J. and Khoo, K.S. and Lam, M.K. and Mohamad, M. and Lim, J.W. (2022) Photoperiod-induced mixotrophic metabolism in Chlorella vulgaris for high biomass and lipid to biodiesel productions using municipal wastewater medium. Fuel, 313 . http://eprints.utp.edu.my/28601/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description The performances of autotrophic and heterotrophic metabolisms in Chlorella vulgaris were assessed from various photoperiod regimes for the sustainable microalgal biodiesel production. Accordingly, the cellular biomass growth and lipid content in relation to the organic nutrient removals from municipal wastewater medium were evaluated from the various light/dark photoperiod cycles amidst mixotrophic metabolism. The mixotrophic treatment had been proven effective in producing high microalgal biomass and lipid while alternating its autotrophic and heterotrophic metabolisms. Thus, exploiting the optimum cellular biosynthesis pathways in inducing both biomass growth and lipid accumulation. Amidst mixotrophy, prolonging light condition would favour biomass growth, whilst extending dark condition had elevated cell lipid content. Accordingly, the 16:8 (light:dark) hours/cycle photoperiod was found adequate in yielding high biomass and lipid productions (0.89 and 0.16 g/L, respectively), while achieving near complete removal (>94) of chemical oxygen demand and ammonium-nitrogen from municipal wastewater. The dominant FAME constituents of C16 and C18 comprised of 90.65-100 of total FAME with the high unsaturation degree could proffer an excellent quality of microalgal biodiesel with low pour point, suitable for application in cold climate regions. © 2021 Elsevier Ltd
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author Leong, W.H.
Saman, N.A.M.
Kiatkittipong, W.
Assabumrungrat, S.
Najdanovic-Visak, V.
Wang, J.
Khoo, K.S.
Lam, M.K.
Mohamad, M.
Lim, J.W.
spellingShingle Leong, W.H.
Saman, N.A.M.
Kiatkittipong, W.
Assabumrungrat, S.
Najdanovic-Visak, V.
Wang, J.
Khoo, K.S.
Lam, M.K.
Mohamad, M.
Lim, J.W.
Photoperiod-induced mixotrophic metabolism in Chlorella vulgaris for high biomass and lipid to biodiesel productions using municipal wastewater medium
author_facet Leong, W.H.
Saman, N.A.M.
Kiatkittipong, W.
Assabumrungrat, S.
Najdanovic-Visak, V.
Wang, J.
Khoo, K.S.
Lam, M.K.
Mohamad, M.
Lim, J.W.
author_sort Leong, W.H.
title Photoperiod-induced mixotrophic metabolism in Chlorella vulgaris for high biomass and lipid to biodiesel productions using municipal wastewater medium
title_short Photoperiod-induced mixotrophic metabolism in Chlorella vulgaris for high biomass and lipid to biodiesel productions using municipal wastewater medium
title_full Photoperiod-induced mixotrophic metabolism in Chlorella vulgaris for high biomass and lipid to biodiesel productions using municipal wastewater medium
title_fullStr Photoperiod-induced mixotrophic metabolism in Chlorella vulgaris for high biomass and lipid to biodiesel productions using municipal wastewater medium
title_full_unstemmed Photoperiod-induced mixotrophic metabolism in Chlorella vulgaris for high biomass and lipid to biodiesel productions using municipal wastewater medium
title_sort photoperiod-induced mixotrophic metabolism in chlorella vulgaris for high biomass and lipid to biodiesel productions using municipal wastewater medium
publisher Elsevier Ltd
publishDate 2022
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121906219&doi=10.1016%2fj.fuel.2021.123052&partnerID=40&md5=fe5ea09d17393e3f5c4fb5a169949b1d
http://eprints.utp.edu.my/28601/
_version_ 1738656863018287104
score 13.211869

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