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Growth, carbohydrate productivity and growth kinetic study of Halochlorella rubescens cultivated under CO2-rich conditions

This study was parametrically established to investigate the effect of different initial pH cultivation medium from pH 4.00 to pH 10.00 and CO2 concentration from 0.04% to 25% (v/v) on the growth and carbohydrate content of Halochlorella rubescens. Changes in biochemical compositions were also ana...

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Main Authors: Tan, Kean Meng, Mohd Asyraf Kassim,
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2020
Online Access:http://journalarticle.ukm.my/15694/1/49_01_01.pdf
http://journalarticle.ukm.my/15694/
http://www.mabjournal.com/index.php?option=com_content&view=article&id=981&catid=59:current-view&Itemid=56
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spelling my-ukm.journal.156942020-11-16T11:07:07Z http://journalarticle.ukm.my/15694/ Growth, carbohydrate productivity and growth kinetic study of Halochlorella rubescens cultivated under CO2-rich conditions Tan, Kean Meng Mohd Asyraf Kassim, This study was parametrically established to investigate the effect of different initial pH cultivation medium from pH 4.00 to pH 10.00 and CO2 concentration from 0.04% to 25% (v/v) on the growth and carbohydrate content of Halochlorella rubescens. Changes in biochemical compositions were also analysed using Fourier-transform infrared spectroscopy (FTIR). The maximum concentration of biomass and the productivity carbohydrate were 0.49 ± 0.01 g/L and 22.42 ± 0.03 mg/L.d respectively, when pH 10.00 and 5% (v/v) CO2 concentration were used for cultivation. The FTIR analysis revealed obvious changes in the chemical functional groups for the1200-900 cm-1, 1655 cm-1 and 2850 cm-1 bands, which represent carbohydrate, protein and lipid in microalgal biomass under different cultivation conditions. At the completion of this study, two kinetic growth models, Logistic and Gompertz were evaluated for microalgae growth at elevated condition. The kinetic model analysis for Halochlorella rubescens growth at high CO2 condition fit well with the Gompertz equation with R2 value of 0.9977. The data acquired from this research was helpful for predicting the growth characteristics of microalgae in a CO2-rich medium and could act as an essential platform for the production of chemicals and biofuels. Penerbit Universiti Kebangsaan Malaysia 2020 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/15694/1/49_01_01.pdf Tan, Kean Meng and Mohd Asyraf Kassim, (2020) Growth, carbohydrate productivity and growth kinetic study of Halochlorella rubescens cultivated under CO2-rich conditions. Malaysian Applied Biology, 49 (1). pp. 1-11. ISSN 0126-8643 http://www.mabjournal.com/index.php?option=com_content&view=article&id=981&catid=59:current-view&Itemid=56
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description This study was parametrically established to investigate the effect of different initial pH cultivation medium from pH 4.00 to pH 10.00 and CO2 concentration from 0.04% to 25% (v/v) on the growth and carbohydrate content of Halochlorella rubescens. Changes in biochemical compositions were also analysed using Fourier-transform infrared spectroscopy (FTIR). The maximum concentration of biomass and the productivity carbohydrate were 0.49 ± 0.01 g/L and 22.42 ± 0.03 mg/L.d respectively, when pH 10.00 and 5% (v/v) CO2 concentration were used for cultivation. The FTIR analysis revealed obvious changes in the chemical functional groups for the1200-900 cm-1, 1655 cm-1 and 2850 cm-1 bands, which represent carbohydrate, protein and lipid in microalgal biomass under different cultivation conditions. At the completion of this study, two kinetic growth models, Logistic and Gompertz were evaluated for microalgae growth at elevated condition. The kinetic model analysis for Halochlorella rubescens growth at high CO2 condition fit well with the Gompertz equation with R2 value of 0.9977. The data acquired from this research was helpful for predicting the growth characteristics of microalgae in a CO2-rich medium and could act as an essential platform for the production of chemicals and biofuels.
format Article
author Tan, Kean Meng
Mohd Asyraf Kassim,
spellingShingle Tan, Kean Meng
Mohd Asyraf Kassim,
Growth, carbohydrate productivity and growth kinetic study of Halochlorella rubescens cultivated under CO2-rich conditions
author_facet Tan, Kean Meng
Mohd Asyraf Kassim,
author_sort Tan, Kean Meng
title Growth, carbohydrate productivity and growth kinetic study of Halochlorella rubescens cultivated under CO2-rich conditions
title_short Growth, carbohydrate productivity and growth kinetic study of Halochlorella rubescens cultivated under CO2-rich conditions
title_full Growth, carbohydrate productivity and growth kinetic study of Halochlorella rubescens cultivated under CO2-rich conditions
title_fullStr Growth, carbohydrate productivity and growth kinetic study of Halochlorella rubescens cultivated under CO2-rich conditions
title_full_unstemmed Growth, carbohydrate productivity and growth kinetic study of Halochlorella rubescens cultivated under CO2-rich conditions
title_sort growth, carbohydrate productivity and growth kinetic study of halochlorella rubescens cultivated under co2-rich conditions
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2020
url http://journalarticle.ukm.my/15694/1/49_01_01.pdf
http://journalarticle.ukm.my/15694/
http://www.mabjournal.com/index.php?option=com_content&view=article&id=981&catid=59:current-view&Itemid=56
_version_ 1684654289096540160
score 13.211869

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