Chlorella vulgaris logistic growth kinetics model in high concentrations of aqueous ammonia

The ability of microalgae to utilize CO2 during photosynthesis and grow rapidly shows their potential in CO2 bio-fixation to capture and store the gas. However, CO2 capture by this biological approach is very slow compared to chemical reaction-based processes such as absorption using amine or aqueou...

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Main Authors:	Azmi, Azlin Suhaida, Che Aziz, Nurain Atikah, Mohamad Puad, Noor Illi, Abdul Halim, Amanatuzzakiah, Yusof, Faridah, Yusup, Suzana
Format:	Article
Language:	English English English
Published:	Kulliyyah of Engineering, International Islamic University Malaysia 2018
Subjects:	QR Microbiology T Technology (General)
Online Access:	http://irep.iium.edu.my/66530/ http://irep.iium.edu.my/66530/ http://irep.iium.edu.my/66530/ http://irep.iium.edu.my/66530/1/66530_Chlorella%20vulgaris%20logistic%20growth%20kinetics.pdf http://irep.iium.edu.my/66530/7/66530_Chlorella%20vulgaris%20logistic%20growth%20kinetics%20model%20in%20high%20concentrations_scopus.pdf http://irep.iium.edu.my/66530/12/66530_Chlorella%20vulgaris%20logistic%20growth%20kinetics_WOS.pdf

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spelling	iium-665302019-01-30T07:28:01Z http://irep.iium.edu.my/66530/ Chlorella vulgaris logistic growth kinetics model in high concentrations of aqueous ammonia Azmi, Azlin Suhaida Che Aziz, Nurain Atikah Mohamad Puad, Noor Illi Abdul Halim, Amanatuzzakiah Yusof, Faridah Yusup, Suzana QR Microbiology T Technology (General) The ability of microalgae to utilize CO2 during photosynthesis and grow rapidly shows their potential in CO2 bio-fixation to capture and store the gas. However, CO2 capture by this biological approach is very slow compared to chemical reaction-based processes such as absorption using amine or aqueous ammonia. Integration between chemical (aqueous ammonia) and biological (microalgae) aspects might enhance the capturing process and at the same time the microalgae can assimilate CO2 for beneficial bioproduct formation. Thus, it is important to assess the growth of the microalgae in various concentrations of ammonia with CO2 supply. Hence, the main objective of this study is to investigate Chlorella vulgaris (C. vulgaris) growth and its kinetics in aqueous ammonia. To achieve that, C. vulgaris was cultivated in various concentrations of aqueous ammonia between 0 to 1920 mg/L at room temperature (i.e. 27°C) and supplied with 15% (v/v) of CO2 under illumination of 3500 lux of white fluorescent light. Result shows that the maximum growth capacity (Xmax) of C. vulgaris is deteriorating from 1.820 Au to 0.245 Au as the concentration of aqueous ammonia is increasing. However, no significant change in maximum specific growth rate (μmax) was observed. The growth data was then fitted into the logistic growth model. The model coefficient of determination (R2) is reducing which suggesting modification of model is required. Kulliyyah of Engineering, International Islamic University Malaysia 2018-12-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/66530/1/66530_Chlorella%20vulgaris%20logistic%20growth%20kinetics.pdf application/pdf en http://irep.iium.edu.my/66530/7/66530_Chlorella%20vulgaris%20logistic%20growth%20kinetics%20model%20in%20high%20concentrations_scopus.pdf application/pdf en http://irep.iium.edu.my/66530/12/66530_Chlorella%20vulgaris%20logistic%20growth%20kinetics_WOS.pdf Azmi, Azlin Suhaida and Che Aziz, Nurain Atikah and Mohamad Puad, Noor Illi and Abdul Halim, Amanatuzzakiah and Yusof, Faridah and Yusup, Suzana (2018) Chlorella vulgaris logistic growth kinetics model in high concentrations of aqueous ammonia. IIUM Engineering Journal, 19 (2). pp. 1-9. ISSN 1511-788X E-ISSN 2289-7860 http://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/893 10.31436/iiumej.v19i2.893
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	QR Microbiology T Technology (General)
spellingShingle	QR Microbiology T Technology (General) Azmi, Azlin Suhaida Che Aziz, Nurain Atikah Mohamad Puad, Noor Illi Abdul Halim, Amanatuzzakiah Yusof, Faridah Yusup, Suzana Chlorella vulgaris logistic growth kinetics model in high concentrations of aqueous ammonia
description	The ability of microalgae to utilize CO2 during photosynthesis and grow rapidly shows their potential in CO2 bio-fixation to capture and store the gas. However, CO2 capture by this biological approach is very slow compared to chemical reaction-based processes such as absorption using amine or aqueous ammonia. Integration between chemical (aqueous ammonia) and biological (microalgae) aspects might enhance the capturing process and at the same time the microalgae can assimilate CO2 for beneficial bioproduct formation. Thus, it is important to assess the growth of the microalgae in various concentrations of ammonia with CO2 supply. Hence, the main objective of this study is to investigate Chlorella vulgaris (C. vulgaris) growth and its kinetics in aqueous ammonia. To achieve that, C. vulgaris was cultivated in various concentrations of aqueous ammonia between 0 to 1920 mg/L at room temperature (i.e. 27°C) and supplied with 15% (v/v) of CO2 under illumination of 3500 lux of white fluorescent light. Result shows that the maximum growth capacity (Xmax) of C. vulgaris is deteriorating from 1.820 Au to 0.245 Au as the concentration of aqueous ammonia is increasing. However, no significant change in maximum specific growth rate (μmax) was observed. The growth data was then fitted into the logistic growth model. The model coefficient of determination (R2) is reducing which suggesting modification of model is required.
format	Article
author	Azmi, Azlin Suhaida Che Aziz, Nurain Atikah Mohamad Puad, Noor Illi Abdul Halim, Amanatuzzakiah Yusof, Faridah Yusup, Suzana
author_facet	Azmi, Azlin Suhaida Che Aziz, Nurain Atikah Mohamad Puad, Noor Illi Abdul Halim, Amanatuzzakiah Yusof, Faridah Yusup, Suzana
author_sort	Azmi, Azlin Suhaida
title	Chlorella vulgaris logistic growth kinetics model in high concentrations of aqueous ammonia
title_short	Chlorella vulgaris logistic growth kinetics model in high concentrations of aqueous ammonia
title_full	Chlorella vulgaris logistic growth kinetics model in high concentrations of aqueous ammonia
title_fullStr	Chlorella vulgaris logistic growth kinetics model in high concentrations of aqueous ammonia
title_full_unstemmed	Chlorella vulgaris logistic growth kinetics model in high concentrations of aqueous ammonia
title_sort	chlorella vulgaris logistic growth kinetics model in high concentrations of aqueous ammonia
publisher	Kulliyyah of Engineering, International Islamic University Malaysia
publishDate	2018
url	http://irep.iium.edu.my/66530/ http://irep.iium.edu.my/66530/ http://irep.iium.edu.my/66530/ http://irep.iium.edu.my/66530/1/66530_Chlorella%20vulgaris%20logistic%20growth%20kinetics.pdf http://irep.iium.edu.my/66530/7/66530_Chlorella%20vulgaris%20logistic%20growth%20kinetics%20model%20in%20high%20concentrations_scopus.pdf http://irep.iium.edu.my/66530/12/66530_Chlorella%20vulgaris%20logistic%20growth%20kinetics_WOS.pdf
first_indexed	2023-09-18T21:34:28Z
last_indexed	2023-09-18T21:34:28Z
_version_	1777412727879237632

Chlorella vulgaris logistic growth kinetics model in high concentrations of aqueous ammonia

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