Selection of culture conditions through manipulation of physical and chemical parameters for production of high-value metabolites in marine microalga Tetraselmis tetrathele (West) butcher 1959 biomass

Microalgae cultivation is one of the crucial aspects in the commercialization of microalgae to produce a high amount of biomass and metabolites. In the aquaculture industry, microalgae biomass is used as feed and growth enhancers, and it is also considered a renewable and sustainable resource. Comme...

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Main Author:	Abd Wahab, Nurul Farihin
Format:	Thesis
Language:	English
Published:	2021
Subjects:	Algae culture Microalgae Microalgae - Biotechnology
Online Access:	http://psasir.upm.edu.my/id/eprint/105901/1/NURUL%20FARAHIN%20BINTI%20ABD%20WAHAB%20-%20IR.pdf
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id	my-upm-ir.105901
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spelling	my-upm-ir.1059012024-02-08T06:35:13Z Selection of culture conditions through manipulation of physical and chemical parameters for production of high-value metabolites in marine microalga Tetraselmis tetrathele (West) butcher 1959 biomass 2021-06 Abd Wahab, Nurul Farihin Microalgae cultivation is one of the crucial aspects in the commercialization of microalgae to produce a high amount of biomass and metabolites. In the aquaculture industry, microalgae biomass is used as feed and growth enhancers, and it is also considered a renewable and sustainable resource. Commercially, Tetraselmis sp. is one of the most commonly used microalgae in the aquaculture field. Although there are several studies on the benefits and culture conditions of Tetraselmis sp., little information is known about the understanding of theoretical and technical knowledge on mass culture, which can affect biomass productivity and the quality of microalgae biomass produced. The present study aims to obtain key insights of three growth factors considered as major contributors on the effect of microalgae growth: (1) ammonium nitrogen concentration (chemical parameter), (2) light intensity, and (3) culture temperature (physical parameters) for mass production of an indigenous species, Tetraselmis tetrathele under tropical conditions. Bubble column reactors (BCRs) were used to mimic indoor and outdoor conditions in enhancing the growth characteristics of cells, the effect of physiological processes, and the composition of metabolites. Overall, this study revealed that although the growth performance of T. tetrathele decreased under 35 °C, this indigenous species showed excellent self-adaptation capabilities to cope with high ammonium nitrogen (0.87 g L-1) and varying light intensities (up to 1,500 μmol m-2 s-1) by protecting microalgae from photodamage. These characteristics have significant implications for the selection of optimal conditions when designing more efficient microalgae culture systems in tropical conditions. The knowledge obtained from this work can be useful in assessing the applicability of this strain culture and also enhancing the understanding of the physiology of microalgae to sustainably maximize microalgae cultivation. Besides, these findings are particularly useful for relevant stakeholders to efficiently expand commercialization by selecting high-quality biomass production with specific metabolites of interest in T. tetrathele. Algae culture Microalgae Microalgae - Biotechnology 2021-06 Thesis http://psasir.upm.edu.my/id/eprint/105901/ http://psasir.upm.edu.my/id/eprint/105901/1/NURUL%20FARAHIN%20BINTI%20ABD%20WAHAB%20-%20IR.pdf text en public doctoral Universiti Putra Malaysia Algae culture Microalgae Microalgae - Biotechnology Mohd Ikhsan, Natrah Fatin
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
advisor	Mohd Ikhsan, Natrah Fatin
topic	Algae culture Microalgae Microalgae - Biotechnology
spellingShingle	Algae culture Microalgae Microalgae - Biotechnology Abd Wahab, Nurul Farihin Selection of culture conditions through manipulation of physical and chemical parameters for production of high-value metabolites in marine microalga Tetraselmis tetrathele (West) butcher 1959 biomass
description	Microalgae cultivation is one of the crucial aspects in the commercialization of microalgae to produce a high amount of biomass and metabolites. In the aquaculture industry, microalgae biomass is used as feed and growth enhancers, and it is also considered a renewable and sustainable resource. Commercially, Tetraselmis sp. is one of the most commonly used microalgae in the aquaculture field. Although there are several studies on the benefits and culture conditions of Tetraselmis sp., little information is known about the understanding of theoretical and technical knowledge on mass culture, which can affect biomass productivity and the quality of microalgae biomass produced. The present study aims to obtain key insights of three growth factors considered as major contributors on the effect of microalgae growth: (1) ammonium nitrogen concentration (chemical parameter), (2) light intensity, and (3) culture temperature (physical parameters) for mass production of an indigenous species, Tetraselmis tetrathele under tropical conditions. Bubble column reactors (BCRs) were used to mimic indoor and outdoor conditions in enhancing the growth characteristics of cells, the effect of physiological processes, and the composition of metabolites. Overall, this study revealed that although the growth performance of T. tetrathele decreased under 35 °C, this indigenous species showed excellent self-adaptation capabilities to cope with high ammonium nitrogen (0.87 g L-1) and varying light intensities (up to 1,500 μmol m-2 s-1) by protecting microalgae from photodamage. These characteristics have significant implications for the selection of optimal conditions when designing more efficient microalgae culture systems in tropical conditions. The knowledge obtained from this work can be useful in assessing the applicability of this strain culture and also enhancing the understanding of the physiology of microalgae to sustainably maximize microalgae cultivation. Besides, these findings are particularly useful for relevant stakeholders to efficiently expand commercialization by selecting high-quality biomass production with specific metabolites of interest in T. tetrathele.
format	Thesis
qualification_level	Doctorate
author	Abd Wahab, Nurul Farihin
author_facet	Abd Wahab, Nurul Farihin
author_sort	Abd Wahab, Nurul Farihin
title	Selection of culture conditions through manipulation of physical and chemical parameters for production of high-value metabolites in marine microalga Tetraselmis tetrathele (West) butcher 1959 biomass
title_short	Selection of culture conditions through manipulation of physical and chemical parameters for production of high-value metabolites in marine microalga Tetraselmis tetrathele (West) butcher 1959 biomass
title_full	Selection of culture conditions through manipulation of physical and chemical parameters for production of high-value metabolites in marine microalga Tetraselmis tetrathele (West) butcher 1959 biomass
title_fullStr	Selection of culture conditions through manipulation of physical and chemical parameters for production of high-value metabolites in marine microalga Tetraselmis tetrathele (West) butcher 1959 biomass
title_full_unstemmed	Selection of culture conditions through manipulation of physical and chemical parameters for production of high-value metabolites in marine microalga Tetraselmis tetrathele (West) butcher 1959 biomass
title_sort	selection of culture conditions through manipulation of physical and chemical parameters for production of high-value metabolites in marine microalga tetraselmis tetrathele (west) butcher 1959 biomass
granting_institution	Universiti Putra Malaysia
publishDate	2021
url	http://psasir.upm.edu.my/id/eprint/105901/1/NURUL%20FARAHIN%20BINTI%20ABD%20WAHAB%20-%20IR.pdf
_version_	1794018918691504128

Selection of culture conditions through manipulation of physical and chemical parameters for production of high-value metabolites in marine microalga Tetraselmis tetrathele (West) butcher 1959 biomass

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