Improvement of lutein and zeaxanthin production in Mychonastes sp. 247 by optimizing light intensity and culture salinity conditions

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Title
Improvement of lutein and zeaxanthin production in Mychonastes sp. 247 by optimizing light intensity and culture salinity conditions
Author(s)
S J Hong; K J Yim; Y J Ryu; C G Lee; Hyun Jin Jang; J Y Jung; Z H Kim
Bibliographic Citation
Journal of Microbiology and Biotechnology, vol. 33, no. 2, pp. 260-267
Publication Year
2023
Abstract
In this study, we sought to improve lutein and zeaxanthin production in Mychonastes sp. 247 and investigated the effect of environmental factors on lutein and zeaxanthin productivity in Mychonastes sp. The basic medium selection and N:P ratio were adjusted to maximize cell growth in one-stage culture, and lutein and zeaxanthin production conditions were optimized using a central composite design for two-stage culture. The maximum lutein production was observed at a light intensity of 60 μE/m2 /s and salinity of 0.49%, and the maximum zeaxanthin production was observed at a light intensity of 532 μE/m2 /s and salinity of 0.78%. Lutein and zeaxanthin production in the optimized medium increased by up to 2 and 2.6 folds, respectively, compared to that in the basic medium. Based on these results, we concluded that the optimal conditions for lutein and zeaxanthin production are different and that optimization of light intensity and culture salinity conditions may help increase carotenoid production. This study presents a useful and potential strategy for optimizing microalgal culture conditions to improve the productivity of lutein and zeaxanthin, which has applications in the functional food field.
Keyword
MicroalgaeMychonastes sp.LuteinZeaxanthinCentral composite design
ISSN
1017-7825
Publisher
Korea Soc-Assoc-Inst
DOI
http://dx.doi.org/10.4014/jmb.2211.11006
Type
Article
Appears in Collections:
1. Journal Articles > Journal Articles
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