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10.3390/foods14183249
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Article

Synergistic Effects of Dysmorphococcus globosus on Selenium Enrichment and Astaxanthin Accumulation

by
Moyu Zhong
1,2,3,†,
Xinxin Huang
1,2,3,4,†,
Xinyue Zhang
1,2,3,
Zahid Hussain
1,2,3,
Zhaohui Zan
1,
Qi Wang
2,
Xiulan Xie
1,2,3,4,* and
Maozhi Ren
1,2,3,4,*
1
Functional Plant Cultivation and Application Teams, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Dushi Building, No. 36 Lazi East Street Road, Tianfu New Area, Chengdu 610000, China
2
Ankang Se-Enriched Products Research and Development Center, Ankang 725000, China
3
Chengdu National Agricultural Science and Technology Center, Chengdu 610000, China
4
School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450052, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Foods 2025, 14(18), 3249; https://doi.org/10.3390/foods14183249
Submission received: 14 August 2025 / Revised: 14 September 2025 / Accepted: 17 September 2025 / Published: 18 September 2025
(This article belongs to the Special Issue Formulation and Development of Natural Health Products: Promoting Sustainable Change)
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Abstract

Hidden starvation poses a critical threat to people’s nutritional status and overall health. Developing functional agriculture can alleviate hidden starvation. This study investigates organic selenium supplementation challenges and the antioxidant potential of high-value astaxanthin. The microalgal strain Dysmorphococcus globosus HY13 was cultured in medium containing sodium selenite, and the effects of different sodium selenite concentrations on the growth of HY13 were analyzed. Color change was the most obvious when the medium was supplemented with 1500 mg L−1 selenite, with samples showing an orange-red color. The conversion efficiency of inorganic selenium to organic selenium reached 99.23%. Similarly, under selenium stress conditions, the HY13 strain accumulated high levels of astaxanthin (up to 0.86 mg g−1 dry weight). Thus, D. globosus appears to efficiently convert inorganic selenium into organic selenium and synergistically accumulate high-value astaxanthin under selenium stress, emphasizing its potential applications in functional agriculture and nutritionally fortified product development.
Keywords: astaxanthin; organic selenium; microalgae; hidden starvation; carotenoid; functional food astaxanthin; organic selenium; microalgae; hidden starvation; carotenoid; functional food
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MDPI and ACS Style

Zhong, M.; Huang, X.; Zhang, X.; Hussain, Z.; Zan, Z.; Wang, Q.; Xie, X.; Ren, M. Synergistic Effects of Dysmorphococcus globosus on Selenium Enrichment and Astaxanthin Accumulation. Foods 2025, 14, 3249. https://doi.org/10.3390/foods14183249

AMA Style

Zhong M, Huang X, Zhang X, Hussain Z, Zan Z, Wang Q, Xie X, Ren M. Synergistic Effects of Dysmorphococcus globosus on Selenium Enrichment and Astaxanthin Accumulation. Foods. 2025; 14(18):3249. https://doi.org/10.3390/foods14183249

Chicago/Turabian Style

Zhong, Moyu, Xinxin Huang, Xinyue Zhang, Zahid Hussain, Zhaohui Zan, Qi Wang, Xiulan Xie, and Maozhi Ren. 2025. "Synergistic Effects of Dysmorphococcus globosus on Selenium Enrichment and Astaxanthin Accumulation" Foods 14, no. 18: 3249. https://doi.org/10.3390/foods14183249

APA Style

Zhong, M., Huang, X., Zhang, X., Hussain, Z., Zan, Z., Wang, Q., Xie, X., & Ren, M. (2025). Synergistic Effects of Dysmorphococcus globosus on Selenium Enrichment and Astaxanthin Accumulation. Foods, 14(18), 3249. https://doi.org/10.3390/foods14183249

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