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ID 118143
Title Alternative
Ethanol Enhances Astaxanthin Production by Aurantiochytrium sp.
Author
Ikeda, Yusuke Tokushima University
Masuda, Naruho Tokushima University
Keywords
astaxanthin
β-carotene
Aurantiochytrium
ethanol stress
Content Type
Journal Article
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.
Journal Title
Journal of Oleo Science
ISSN
13458957
13473352
NCID
AA11503337
Publisher
Japan Oil Chemists' Society
Volume
72
Issue
4
Start Page
441
End Page
446
Published Date
2023
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.
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
Bioscience and Bioindustry