Maximizing CO2 biofixation of Arthrospira platensis using an in situ bicarbonate pool: Optimization of CO2-regulated pH and bicarbonate concentration
The highly alkaline environment required for Arthrospira cultivation has great potential for CO2 capture and utilization, but less attention has been paid. Here, we used Arthrospira medium as an in situ carbon pool to improve biomass production, carbon fixation, and capture efficiencies. Under optim...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Journal of CO2 Utilization |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212982025001568 |
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| author | Youzhi Yu Yan Xu Kaixuan Wang Yi Ding Yahong Geng Yeguang Li Xiaobin Wen Zhongjie Wang |
| author_facet | Youzhi Yu Yan Xu Kaixuan Wang Yi Ding Yahong Geng Yeguang Li Xiaobin Wen Zhongjie Wang |
| author_sort | Youzhi Yu |
| collection | DOAJ |
| description | The highly alkaline environment required for Arthrospira cultivation has great potential for CO2 capture and utilization, but less attention has been paid. Here, we used Arthrospira medium as an in situ carbon pool to improve biomass production, carbon fixation, and capture efficiencies. Under optimized pH 8.5–10.5 and 8.4 g L−1 sodium bicarbonate, the highest carbon fixation rates of Arthrospira platensis reached 295.68–304.75 mg L−1 d−1 and 26.35 g m−2 d−1 in a 3-L reactor and 5 m2 runway pond, respectively, and produced biomass with abundant of phycocyanin and carotenoids. Furthermore, carbon fixation rates of 24.73–26.93 g m−2 d−1 and exogenous CO2 utilization efficiencies of 72.62–78.24 % were obtained by culture in a large-scale 200-m2 runway pond. Overall, this study established an in situ carbon pool system suitable for Arthrospira for carbon capture and fixation, which effectively promotes the use of Arthrospira in carbon emission reduction. |
| format | Article |
| id | doaj-art-59cc8ce3fea54a57be8b51cee668dada |
| institution | Matheson Library |
| issn | 2212-9839 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of CO2 Utilization |
| spelling | doaj-art-59cc8ce3fea54a57be8b51cee668dada2025-07-25T04:18:35ZengElsevierJournal of CO2 Utilization2212-98392025-09-0199103172Maximizing CO2 biofixation of Arthrospira platensis using an in situ bicarbonate pool: Optimization of CO2-regulated pH and bicarbonate concentrationYouzhi Yu0Yan Xu1Kaixuan Wang2Yi Ding3Yahong Geng4Yeguang Li5Xiaobin Wen6Zhongjie Wang7State Key Laboratory of Plant Diversity and Specialty Crops, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, ChinaState Key Laboratory of Plant Diversity and Specialty Crops, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, ChinaState Key Laboratory of Plant Diversity and Specialty Crops, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, ChinaState Key Laboratory of Plant Diversity and Specialty Crops, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, ChinaState Key Laboratory of Plant Diversity and Specialty Crops, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, ChinaState Key Laboratory of Plant Diversity and Specialty Crops, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, ChinaState Key Laboratory of Plant Diversity and Specialty Crops, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, China; Correspondence to: Wuhan Botanical Garden, Chinese Academy of Sciences, No.201 Jiufeng 1 Road, East Lake High-Tech Development Zone, Wuhan, Hubei, ChinaState Key Laboratory of Plant Diversity and Specialty Crops, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, China; Correspondence to: Wuhan Botanical Garden, Chinese Academy of Sciences, No.201 Jiufeng 1 Road, East Lake High-Tech Development Zone, Wuhan, Hubei, ChinaThe highly alkaline environment required for Arthrospira cultivation has great potential for CO2 capture and utilization, but less attention has been paid. Here, we used Arthrospira medium as an in situ carbon pool to improve biomass production, carbon fixation, and capture efficiencies. Under optimized pH 8.5–10.5 and 8.4 g L−1 sodium bicarbonate, the highest carbon fixation rates of Arthrospira platensis reached 295.68–304.75 mg L−1 d−1 and 26.35 g m−2 d−1 in a 3-L reactor and 5 m2 runway pond, respectively, and produced biomass with abundant of phycocyanin and carotenoids. Furthermore, carbon fixation rates of 24.73–26.93 g m−2 d−1 and exogenous CO2 utilization efficiencies of 72.62–78.24 % were obtained by culture in a large-scale 200-m2 runway pond. Overall, this study established an in situ carbon pool system suitable for Arthrospira for carbon capture and fixation, which effectively promotes the use of Arthrospira in carbon emission reduction.http://www.sciencedirect.com/science/article/pii/S2212982025001568Arthrospira platensisCarbon dioxide fixationCarbon poolpHSodium bicarbonate |
| spellingShingle | Youzhi Yu Yan Xu Kaixuan Wang Yi Ding Yahong Geng Yeguang Li Xiaobin Wen Zhongjie Wang Maximizing CO2 biofixation of Arthrospira platensis using an in situ bicarbonate pool: Optimization of CO2-regulated pH and bicarbonate concentration Journal of CO2 Utilization Arthrospira platensis Carbon dioxide fixation Carbon pool pH Sodium bicarbonate |
| title | Maximizing CO2 biofixation of Arthrospira platensis using an in situ bicarbonate pool: Optimization of CO2-regulated pH and bicarbonate concentration |
| title_full | Maximizing CO2 biofixation of Arthrospira platensis using an in situ bicarbonate pool: Optimization of CO2-regulated pH and bicarbonate concentration |
| title_fullStr | Maximizing CO2 biofixation of Arthrospira platensis using an in situ bicarbonate pool: Optimization of CO2-regulated pH and bicarbonate concentration |
| title_full_unstemmed | Maximizing CO2 biofixation of Arthrospira platensis using an in situ bicarbonate pool: Optimization of CO2-regulated pH and bicarbonate concentration |
| title_short | Maximizing CO2 biofixation of Arthrospira platensis using an in situ bicarbonate pool: Optimization of CO2-regulated pH and bicarbonate concentration |
| title_sort | maximizing co2 biofixation of arthrospira platensis using an in situ bicarbonate pool optimization of co2 regulated ph and bicarbonate concentration |
| topic | Arthrospira platensis Carbon dioxide fixation Carbon pool pH Sodium bicarbonate |
| url | http://www.sciencedirect.com/science/article/pii/S2212982025001568 |
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