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Effects of macro/micronutrients on green and brown microalgal cell growth and fatty acids in photobioreactor and open-tank systems

This study described the optimization of growth parameters that affected locally-isolated green Nannochloropsis oculata and Tetraselmis suecica and brown Isochrysis galbana and Pavlova lutheri microalgae using Response Surface Methodology (RSM). Under deficiency conditions of 10�65 g L�1 KNO3, 3...

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Main Authors: Usman Shah, S.M., Abdullah, M.A.
Format: Article
Published: Elsevier Ltd 2018
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041628373&doi=10.1016%2fj.bcab.2018.01.011&partnerID=40&md5=561143e1ba09915dd3d0dee52f462f6b
http://eprints.utp.edu.my/21660/
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spelling my.utp.eprints.216602018-08-01T02:12:38Z Effects of macro/micronutrients on green and brown microalgal cell growth and fatty acids in photobioreactor and open-tank systems Usman Shah, S.M. Abdullah, M.A. This study described the optimization of growth parameters that affected locally-isolated green Nannochloropsis oculata and Tetraselmis suecica and brown Isochrysis galbana and Pavlova lutheri microalgae using Response Surface Methodology (RSM). Under deficiency conditions of 10�65 g L�1 KNO3, 3�7.5 g L�1 Na2HPO4 and 2.5 g L�1 FeCl3 the highest lipid accumulation of 37.3, 23.6, 28.3 and 37.2, with slightly reduced cell growth of 0.64, 0.49, 0.54 and 0.38 g L�1 were achieved for N. oculata, T. suecica, I. galbana and P. lutheri, respectively. The macronutrients significantly influenced the biomass and lipid content positively. However, the interaction of phosphate-phosphate for N. oculata, and nitrate-nitrate for I. galbana may affect cell growth negatively. The highest biomass of 0.62�0.96 g L�1 and lipid content of 31.6�42.2 in 5 L PBR and the highest biomass of 0.45�0.72 g L�1 and lipid content of 24.4�38.5 in 300 L open tank were achieved for all the four species. The total saturated fatty acids (44.3�63.8 and 30.4�55.03); monounsaturated fatty acids (6.1�37.0 and 4.2�13.1); and polyunsaturated fatty acids (8.3�22.3 and 1.02�15.2) were obtained, respectively, with pentadecanoic (C15:0), palmitic (C16:0), palmitoleic (C16:1), heptadecanoic (C17:0), oleic (C18:1), eicosanoic (C20:0), eicosapentaenoic (C20:5) and docosahexaenoic (C22:6) as predominant fatty acids. © 2018 Elsevier Ltd Elsevier Ltd 2018 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041628373&doi=10.1016%2fj.bcab.2018.01.011&partnerID=40&md5=561143e1ba09915dd3d0dee52f462f6b Usman Shah, S.M. and Abdullah, M.A. (2018) Effects of macro/micronutrients on green and brown microalgal cell growth and fatty acids in photobioreactor and open-tank systems. Biocatalysis and Agricultural Biotechnology, 14 . pp. 10-17. http://eprints.utp.edu.my/21660/
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 This study described the optimization of growth parameters that affected locally-isolated green Nannochloropsis oculata and Tetraselmis suecica and brown Isochrysis galbana and Pavlova lutheri microalgae using Response Surface Methodology (RSM). Under deficiency conditions of 10�65 g L�1 KNO3, 3�7.5 g L�1 Na2HPO4 and 2.5 g L�1 FeCl3 the highest lipid accumulation of 37.3, 23.6, 28.3 and 37.2, with slightly reduced cell growth of 0.64, 0.49, 0.54 and 0.38 g L�1 were achieved for N. oculata, T. suecica, I. galbana and P. lutheri, respectively. The macronutrients significantly influenced the biomass and lipid content positively. However, the interaction of phosphate-phosphate for N. oculata, and nitrate-nitrate for I. galbana may affect cell growth negatively. The highest biomass of 0.62�0.96 g L�1 and lipid content of 31.6�42.2 in 5 L PBR and the highest biomass of 0.45�0.72 g L�1 and lipid content of 24.4�38.5 in 300 L open tank were achieved for all the four species. The total saturated fatty acids (44.3�63.8 and 30.4�55.03); monounsaturated fatty acids (6.1�37.0 and 4.2�13.1); and polyunsaturated fatty acids (8.3�22.3 and 1.02�15.2) were obtained, respectively, with pentadecanoic (C15:0), palmitic (C16:0), palmitoleic (C16:1), heptadecanoic (C17:0), oleic (C18:1), eicosanoic (C20:0), eicosapentaenoic (C20:5) and docosahexaenoic (C22:6) as predominant fatty acids. © 2018 Elsevier Ltd
format Article
author Usman Shah, S.M.
Abdullah, M.A.
spellingShingle Usman Shah, S.M.
Abdullah, M.A.
Effects of macro/micronutrients on green and brown microalgal cell growth and fatty acids in photobioreactor and open-tank systems
author_facet Usman Shah, S.M.
Abdullah, M.A.
author_sort Usman Shah, S.M.
title Effects of macro/micronutrients on green and brown microalgal cell growth and fatty acids in photobioreactor and open-tank systems
title_short Effects of macro/micronutrients on green and brown microalgal cell growth and fatty acids in photobioreactor and open-tank systems
title_full Effects of macro/micronutrients on green and brown microalgal cell growth and fatty acids in photobioreactor and open-tank systems
title_fullStr Effects of macro/micronutrients on green and brown microalgal cell growth and fatty acids in photobioreactor and open-tank systems
title_full_unstemmed Effects of macro/micronutrients on green and brown microalgal cell growth and fatty acids in photobioreactor and open-tank systems
title_sort effects of macro/micronutrients on green and brown microalgal cell growth and fatty acids in photobioreactor and open-tank systems
publisher Elsevier Ltd
publishDate 2018
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041628373&doi=10.1016%2fj.bcab.2018.01.011&partnerID=40&md5=561143e1ba09915dd3d0dee52f462f6b
http://eprints.utp.edu.my/21660/
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score 13.211869

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