ID | 118143 |
Title Alternative | Ethanol Enhances Astaxanthin Production by Aurantiochytrium sp.
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Author |
Sakamoto, Takaiku
Tokushima University
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Ikeda, Yusuke
Tokushima University
Masuda, Naruho
Tokushima University
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Keywords | astaxanthin
β-carotene
Aurantiochytrium
ethanol stress
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Content Type |
Journal Article
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Description | Two-percent ethanol increased the astaxanthin productivity of heterotrophic microalgae Aurantiochytrium sp. O5-1-1 to 2.231 mg/L, 45-fold higher than under ethanol-free condition. Ethanol in the medium decreased at the same rate as spontaneous volatilization, suggesting that it was not a transient signaling factor but a continuous stress on the cells. The triply mutated strain OM3-3 produced 5.075 mg/L astaxanthin under 2% ethanol conditions. Furthermore, the astaxanthin accumulation of the mutant OM3-9 was 0.895 mg/g, which was 150-fold higher than that of strain O5-1-1 in ethanol-free condition. These results are beneficial for the commercial exploitation of carotenoids producing Aurantiochytrium spp.
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Journal Title |
Journal of Oleo Science
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ISSN | 13458957
13473352
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NCID | AA11503337
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Publisher | Japan Oil Chemists' Society
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Volume | 72
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Issue | 4
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Start Page | 441
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End Page | 446
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Published Date | 2023
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Rights | CC BY 4.0 (Attribution 4.0 International) (https://creativecommons.org/licenses/by/4.0/). This license allows users to share and adapt an article, even commercially, as long as appropriate credit is given. That is, this license lets others copy, distribute, remix, and build upon the Article, even commercially, provided the original source and Authors are credited.
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language |
eng
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Publisher
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departments |
Bioscience and Bioindustry
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