Enhancement of astaxanthin accumulation using black light in Coelastrum and Monoraphidium isolated from Malaysia
Microalgae are important microorganisms which produce potentially valuable compounds. Astaxanthin, a group of xanthophyll carotenoids, is one of the most powerful antioxidants mainly found in microalgae, yeasts, and crustaceans. Environmental stresses such as intense light, drought, high salinity, n...
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2021
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my.utm.955342022-05-31T12:46:03Z http://eprints.utm.my/id/eprint/95534/ Enhancement of astaxanthin accumulation using black light in Coelastrum and Monoraphidium isolated from Malaysia Kaha, Marshila Iwamoto, Koji Nurul Ashyikin, Yahya Suhaimi, Noraiza Sugiura, Norio Hara, Hirofumi Othman, Nor’Azizi Zakaria, Zuriati Suzuki, Kengo T Technology (General) Microalgae are important microorganisms which produce potentially valuable compounds. Astaxanthin, a group of xanthophyll carotenoids, is one of the most powerful antioxidants mainly found in microalgae, yeasts, and crustaceans. Environmental stresses such as intense light, drought, high salinity, nutrient depletion, and high temperature can induce the accumulation of astaxanthin. Thus, this research aims to investigate the effect of black light, also known as long-wave ultraviolet radiation or UV-A, as a stressor on the accumulation of astaxanthin as well as to screen the antioxidant property in two tropical green algal strains isolated from Malaysia, Coelastrum sp. and Monoraphidium sp. SP03. Monoraphidium sp. SP03 showed a higher growth rate (0.66 day-1) compared to that of Coelastrum sp. (0.22 day-1). Coelastrum sp. showed significantly higher accumulation of astaxanthin in black light (0.999 g mL culture-1) compared to that in control condition (0.185 g mL-1). Similarly, Monoraphidium sp. SP03 showed higher astaxanthin content in black light (0.476 g mL culture-1) compared to that in control condition (0.363 g mL culture-1). Coelastrum sp. showed higher scavenging activity (30.19%) when cultured in black light condition, indicating a correlation between the antioxidant activity and accumulation of astaxanthin. In this study, black light was shown to possess great potential to enhance the production of astaxanthin in microalgae. Nature Research 2021 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/95534/1/KojiIwamoto2021_EnhancementOfAstaxanthinAccumulationUsingBlackLight.pdf Kaha, Marshila and Iwamoto, Koji and Nurul Ashyikin, Yahya and Suhaimi, Noraiza and Sugiura, Norio and Hara, Hirofumi and Othman, Nor’Azizi and Zakaria, Zuriati and Suzuki, Kengo (2021) Enhancement of astaxanthin accumulation using black light in Coelastrum and Monoraphidium isolated from Malaysia. Scientific Reports, 11 (1). p. 11708. ISSN 2045-2322 http://dx.doi.org/10.1038/s41598-021-91128-z |
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T Technology (General) Kaha, Marshila Iwamoto, Koji Nurul Ashyikin, Yahya Suhaimi, Noraiza Sugiura, Norio Hara, Hirofumi Othman, Nor’Azizi Zakaria, Zuriati Suzuki, Kengo Enhancement of astaxanthin accumulation using black light in Coelastrum and Monoraphidium isolated from Malaysia |
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Microalgae are important microorganisms which produce potentially valuable compounds. Astaxanthin, a group of xanthophyll carotenoids, is one of the most powerful antioxidants mainly found in microalgae, yeasts, and crustaceans. Environmental stresses such as intense light, drought, high salinity, nutrient depletion, and high temperature can induce the accumulation of astaxanthin. Thus, this research aims to investigate the effect of black light, also known as long-wave ultraviolet radiation or UV-A, as a stressor on the accumulation of astaxanthin as well as to screen the antioxidant property in two tropical green algal strains isolated from Malaysia, Coelastrum sp. and Monoraphidium sp. SP03. Monoraphidium sp. SP03 showed a higher growth rate (0.66 day-1) compared to that of Coelastrum sp. (0.22 day-1). Coelastrum sp. showed significantly higher accumulation of astaxanthin in black light (0.999 g mL culture-1) compared to that in control condition (0.185 g mL-1). Similarly, Monoraphidium sp. SP03 showed higher astaxanthin content in black light (0.476 g mL culture-1) compared to that in control condition (0.363 g mL culture-1). Coelastrum sp. showed higher scavenging activity (30.19%) when cultured in black light condition, indicating a correlation between the antioxidant activity and accumulation of astaxanthin. In this study, black light was shown to possess great potential to enhance the production of astaxanthin in microalgae. |
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Article |
author |
Kaha, Marshila Iwamoto, Koji Nurul Ashyikin, Yahya Suhaimi, Noraiza Sugiura, Norio Hara, Hirofumi Othman, Nor’Azizi Zakaria, Zuriati Suzuki, Kengo |
author_facet |
Kaha, Marshila Iwamoto, Koji Nurul Ashyikin, Yahya Suhaimi, Noraiza Sugiura, Norio Hara, Hirofumi Othman, Nor’Azizi Zakaria, Zuriati Suzuki, Kengo |
author_sort |
Kaha, Marshila |
title |
Enhancement of astaxanthin accumulation using black light in Coelastrum and Monoraphidium isolated from Malaysia |
title_short |
Enhancement of astaxanthin accumulation using black light in Coelastrum and Monoraphidium isolated from Malaysia |
title_full |
Enhancement of astaxanthin accumulation using black light in Coelastrum and Monoraphidium isolated from Malaysia |
title_fullStr |
Enhancement of astaxanthin accumulation using black light in Coelastrum and Monoraphidium isolated from Malaysia |
title_full_unstemmed |
Enhancement of astaxanthin accumulation using black light in Coelastrum and Monoraphidium isolated from Malaysia |
title_sort |
enhancement of astaxanthin accumulation using black light in coelastrum and monoraphidium isolated from malaysia |
publisher |
Nature Research |
publishDate |
2021 |
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http://eprints.utm.my/id/eprint/95534/1/KojiIwamoto2021_EnhancementOfAstaxanthinAccumulationUsingBlackLight.pdf http://eprints.utm.my/id/eprint/95534/ http://dx.doi.org/10.1038/s41598-021-91128-z |
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