Palm oil mill effluent for lipid production by the diatom thalassiosira pseudonana

Biomass and lipid production by the marine centric diatom Thalassiosira pseudonana were characterized in media based on palm oil mill effluent (POME) as a source of key nutrients. The optimal medium comprised 20% by volume POME, 80 µM Na2SiO3, and 35 g NaCl L−1 in water at pH ~7.7. In 15-day batch c...

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Main Authors: Karthick Murugan, Palanisamy, Gaanty Pragas, Maniam, Mohd Hasbi, Ab. Rahim, Natanamurugaraj, Govindan
Format: Article
Language:English
Published: MDPI 2022
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/33343/
http://umpir.ump.edu.my/id/eprint/33343/1/Palm%20oil%20mill%20effluent%20for%20lipid%20production%20by%20the%20diatom%20thalassiosira%20pseudonana.pdf
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author Karthick Murugan, Palanisamy
Gaanty Pragas, Maniam
Mohd Hasbi, Ab. Rahim
Natanamurugaraj, Govindan
author_facet Karthick Murugan, Palanisamy
Gaanty Pragas, Maniam
Mohd Hasbi, Ab. Rahim
Natanamurugaraj, Govindan
author_sort Karthick Murugan, Palanisamy
building UMP Institutional Repository
collection Online Access
description Biomass and lipid production by the marine centric diatom Thalassiosira pseudonana were characterized in media based on palm oil mill effluent (POME) as a source of key nutrients. The optimal medium comprised 20% by volume POME, 80 µM Na2SiO3, and 35 g NaCl L−1 in water at pH ~7.7. In 15-day batch cultures (16:8 h/h light–dark cycle; 200 µmol photons m−2 s−1, 26 ± 1◦C) bubbled continuously with air mixed with CO2 (2.5% by vol), the peak concentration of dry biomass was 869 ± 14 mg L−1 corresponding to a productivity of ~58 mg L−1 day−1 . The neutral lipid content of the biomass was 46.2 ± 1.1% by dry weight. The main components of the esterified lipids were palmitoleic acid methyl ester (31.6% w/w) and myristic acid methyl ester (16.8% w/w). The final biomass concentration and the lipid content were affected by the light–dark cycle. Continuous (24 h light) illumination at the above-specified irradiance reduced biomass productivity to ~54 mg L−1 day−1 and lipid content to 38.1%.
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spelling ump-333432022-03-15T08:03:02Z http://umpir.ump.edu.my/id/eprint/33343/ Palm oil mill effluent for lipid production by the diatom thalassiosira pseudonana Karthick Murugan, Palanisamy Gaanty Pragas, Maniam Mohd Hasbi, Ab. Rahim Natanamurugaraj, Govindan QD Chemistry QP Physiology T Technology (General) Biomass and lipid production by the marine centric diatom Thalassiosira pseudonana were characterized in media based on palm oil mill effluent (POME) as a source of key nutrients. The optimal medium comprised 20% by volume POME, 80 µM Na2SiO3, and 35 g NaCl L−1 in water at pH ~7.7. In 15-day batch cultures (16:8 h/h light–dark cycle; 200 µmol photons m−2 s−1, 26 ± 1◦C) bubbled continuously with air mixed with CO2 (2.5% by vol), the peak concentration of dry biomass was 869 ± 14 mg L−1 corresponding to a productivity of ~58 mg L−1 day−1 . The neutral lipid content of the biomass was 46.2 ± 1.1% by dry weight. The main components of the esterified lipids were palmitoleic acid methyl ester (31.6% w/w) and myristic acid methyl ester (16.8% w/w). The final biomass concentration and the lipid content were affected by the light–dark cycle. Continuous (24 h light) illumination at the above-specified irradiance reduced biomass productivity to ~54 mg L−1 day−1 and lipid content to 38.1%. MDPI 2022-01 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/33343/1/Palm%20oil%20mill%20effluent%20for%20lipid%20production%20by%20the%20diatom%20thalassiosira%20pseudonana.pdf Karthick Murugan, Palanisamy and Gaanty Pragas, Maniam and Mohd Hasbi, Ab. Rahim and Natanamurugaraj, Govindan (2022) Palm oil mill effluent for lipid production by the diatom thalassiosira pseudonana. Fermentation, 8 (1). pp. 1-16. ISSN 2311-5637. (Published) https://doi.org/10.3390/fermentation8010023 https://doi.org/10.3390/fermentation8010023
spellingShingle QD Chemistry
QP Physiology
T Technology (General)
Karthick Murugan, Palanisamy
Gaanty Pragas, Maniam
Mohd Hasbi, Ab. Rahim
Natanamurugaraj, Govindan
Palm oil mill effluent for lipid production by the diatom thalassiosira pseudonana
title Palm oil mill effluent for lipid production by the diatom thalassiosira pseudonana
title_full Palm oil mill effluent for lipid production by the diatom thalassiosira pseudonana
title_fullStr Palm oil mill effluent for lipid production by the diatom thalassiosira pseudonana
title_full_unstemmed Palm oil mill effluent for lipid production by the diatom thalassiosira pseudonana
title_short Palm oil mill effluent for lipid production by the diatom thalassiosira pseudonana
title_sort palm oil mill effluent for lipid production by the diatom thalassiosira pseudonana
topic QD Chemistry
QP Physiology
T Technology (General)
url http://umpir.ump.edu.my/id/eprint/33343/
http://umpir.ump.edu.my/id/eprint/33343/
http://umpir.ump.edu.my/id/eprint/33343/
http://umpir.ump.edu.my/id/eprint/33343/1/Palm%20oil%20mill%20effluent%20for%20lipid%20production%20by%20the%20diatom%20thalassiosira%20pseudonana.pdf