Comparative analysis of lipid accumulation and fatty acid composition in microalgae chaetoceros sp. and isochrysis sp. under varied light intensities for biodiesel production / Zamzila Erdawati Zainol ... [et al.]

The escalating demand for renewable and sustainable energy sources has spurred research into innovative alternatives to conventional fossil fuels. Among these alternatives, microalgae have emerged as promising for biodiesel production due to their rapid growth rates, high lipid content, and ability...

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Main Authors: Zainol, Zamzila Erdawati, Ahmad, Aziani, Kamaruddin, Sharir Aizat, Abd. Aziz, Khairul Naim
Format: Article
Language:English
Published: Faculty of Applied Sciences 2024
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Online Access:https://ir.uitm.edu.my/id/eprint/98442/1/98442.pdf
https://ir.uitm.edu.my/id/eprint/98442/
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spelling my.uitm.ir.984422024-07-15T16:03:10Z https://ir.uitm.edu.my/id/eprint/98442/ Comparative analysis of lipid accumulation and fatty acid composition in microalgae chaetoceros sp. and isochrysis sp. under varied light intensities for biodiesel production / Zamzila Erdawati Zainol ... [et al.] scilett Zainol, Zamzila Erdawati Ahmad, Aziani Kamaruddin, Sharir Aizat Abd. Aziz, Khairul Naim QK Botany Biomass The escalating demand for renewable and sustainable energy sources has spurred research into innovative alternatives to conventional fossil fuels. Among these alternatives, microalgae have emerged as promising for biodiesel production due to their rapid growth rates, high lipid content, and ability to thrive in diverse environmental conditions. However, the efficient conversion of microalgae biomass into biodiesel hinges on optimizing lipid accumulation and ensuring desirable fatty acid compositions. Therefore, this study investigates the effects of different light intensities on lipid accumulation and fatty acid composition in two prevalent microalgae species, Chaetoceros sp. and Isochrysis sp., to optimize their biodiesel potential in seawater containing sodium metasilicate and Conway medium. The cultivation was carried out at three different light intensities (1000 lux, 2000 lux, and 3000 lux) with a photoperiod of 12:12 hours of light: dark cycle. The results showed that the samples achieved peak growth rates at a light intensity of 2000 lux, with Chaetoceros sp. reaching 12.32% growth and Isochrysis sp. achieving 9.72%. Chaetoceros sp. and Isochrysis sp. displayed their peak saturated fatty acid content, crucial for high-grade biodiesel, at the 2000 lux light intensity. Chaetoceros sp. reached 51.06%, while Isochrysis sp. recorded 44.05%. Additionally, both species contained notable proportions of C14, C16, and C18 fatty acids, essential components in selecting viable alternative biodiesel sources. Therefore, a light intensity of 2000 lux is recommended to be applied during the growing stage of this seaweed to produce quality biodiesel. Faculty of Applied Sciences 2024-01 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/98442/1/98442.pdf Comparative analysis of lipid accumulation and fatty acid composition in microalgae chaetoceros sp. and isochrysis sp. under varied light intensities for biodiesel production / Zamzila Erdawati Zainol ... [et al.]. (2024) Science Letters (ScL) <https://ir.uitm.edu.my/view/publication/Science_Letters_=28ScL=29/>, 18 (1): 5. pp. 39-49. ISSN 2682-8626
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic QK Botany
Biomass
spellingShingle QK Botany
Biomass
Zainol, Zamzila Erdawati
Ahmad, Aziani
Kamaruddin, Sharir Aizat
Abd. Aziz, Khairul Naim
Comparative analysis of lipid accumulation and fatty acid composition in microalgae chaetoceros sp. and isochrysis sp. under varied light intensities for biodiesel production / Zamzila Erdawati Zainol ... [et al.]
description The escalating demand for renewable and sustainable energy sources has spurred research into innovative alternatives to conventional fossil fuels. Among these alternatives, microalgae have emerged as promising for biodiesel production due to their rapid growth rates, high lipid content, and ability to thrive in diverse environmental conditions. However, the efficient conversion of microalgae biomass into biodiesel hinges on optimizing lipid accumulation and ensuring desirable fatty acid compositions. Therefore, this study investigates the effects of different light intensities on lipid accumulation and fatty acid composition in two prevalent microalgae species, Chaetoceros sp. and Isochrysis sp., to optimize their biodiesel potential in seawater containing sodium metasilicate and Conway medium. The cultivation was carried out at three different light intensities (1000 lux, 2000 lux, and 3000 lux) with a photoperiod of 12:12 hours of light: dark cycle. The results showed that the samples achieved peak growth rates at a light intensity of 2000 lux, with Chaetoceros sp. reaching 12.32% growth and Isochrysis sp. achieving 9.72%. Chaetoceros sp. and Isochrysis sp. displayed their peak saturated fatty acid content, crucial for high-grade biodiesel, at the 2000 lux light intensity. Chaetoceros sp. reached 51.06%, while Isochrysis sp. recorded 44.05%. Additionally, both species contained notable proportions of C14, C16, and C18 fatty acids, essential components in selecting viable alternative biodiesel sources. Therefore, a light intensity of 2000 lux is recommended to be applied during the growing stage of this seaweed to produce quality biodiesel.
format Article
author Zainol, Zamzila Erdawati
Ahmad, Aziani
Kamaruddin, Sharir Aizat
Abd. Aziz, Khairul Naim
author_facet Zainol, Zamzila Erdawati
Ahmad, Aziani
Kamaruddin, Sharir Aizat
Abd. Aziz, Khairul Naim
author_sort Zainol, Zamzila Erdawati
title Comparative analysis of lipid accumulation and fatty acid composition in microalgae chaetoceros sp. and isochrysis sp. under varied light intensities for biodiesel production / Zamzila Erdawati Zainol ... [et al.]
title_short Comparative analysis of lipid accumulation and fatty acid composition in microalgae chaetoceros sp. and isochrysis sp. under varied light intensities for biodiesel production / Zamzila Erdawati Zainol ... [et al.]
title_full Comparative analysis of lipid accumulation and fatty acid composition in microalgae chaetoceros sp. and isochrysis sp. under varied light intensities for biodiesel production / Zamzila Erdawati Zainol ... [et al.]
title_fullStr Comparative analysis of lipid accumulation and fatty acid composition in microalgae chaetoceros sp. and isochrysis sp. under varied light intensities for biodiesel production / Zamzila Erdawati Zainol ... [et al.]
title_full_unstemmed Comparative analysis of lipid accumulation and fatty acid composition in microalgae chaetoceros sp. and isochrysis sp. under varied light intensities for biodiesel production / Zamzila Erdawati Zainol ... [et al.]
title_sort comparative analysis of lipid accumulation and fatty acid composition in microalgae chaetoceros sp. and isochrysis sp. under varied light intensities for biodiesel production / zamzila erdawati zainol ... [et al.]
publisher Faculty of Applied Sciences
publishDate 2024
url https://ir.uitm.edu.my/id/eprint/98442/1/98442.pdf
https://ir.uitm.edu.my/id/eprint/98442/
_version_ 1806422020303355904
score 13.211869