Exploring the influence of carbon sources and salinity on the growth of microalgae
In the domain of microalgae cultivation, the selection of carbon source and salinity profoundly impacts the growth and metabolic activity of species like Chlorella sp. Carbon sources and salt serve as vital substrates, dictating not only biomass production but also shaping cellular processes essenti...
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_01030.pdf |
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| author | Choong Xin Yi Teh Hui Ying Lam Man Kee Raviadaran Revathi Chai Yee Ho Tan Inn Shi Foo Henry Chee Yew Wong Voon-Loong Loy Adrian Chun Minh |
| author_facet | Choong Xin Yi Teh Hui Ying Lam Man Kee Raviadaran Revathi Chai Yee Ho Tan Inn Shi Foo Henry Chee Yew Wong Voon-Loong Loy Adrian Chun Minh |
| author_sort | Choong Xin Yi |
| collection | DOAJ |
| description | In the domain of microalgae cultivation, the selection of carbon source and salinity profoundly impacts the growth and metabolic activity of species like Chlorella sp. Carbon sources and salt serve as vital substrates, dictating not only biomass production but also shaping cellular processes essential for various applications, particularly as agricultural biofertilizers. This study investigated the impact of different carbon sources and varying concentrations of sodium chloride (NaCl) on the growth of Chlorella sp. It was found that CO2 bubbling significantly improved microalgae growth, resulting in a notable 5.60% increase compared to cultivation with sodium bicarbonate. Within a span of 14 days, Chlorella sp. reached its peak biomass of 1.32 g/L ± 1.2% under CO2 bubbling, outperforming NaHCO3 cultivation, indicating a more efficient carbon utilization. Furthermore, the study revealed that Chlorella sp. achieved its highest biomass and lipid yield under CO2 bubbling cultivation without the addition of NaCl (1.32 g/L ± 1.2% and 0.43 g/L ± 3.0 % respectively), while a NaCl concentration of 0.5 M yielded the highest lipid content (34% ± 1.8 %) but had relatively low lipid yield at 0.21 g/L ± 5.0%. This underscored the impact of NaCl stress on the growth and lipid content of Chlorella sp. |
| format | Article |
| id | doaj-art-11198a2e92e248d58690af8187bcf687 |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-11198a2e92e248d58690af8187bcf6872025-02-05T10:47:33ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016030103010.1051/e3sconf/202560301030e3sconf_isgst2024_01030Exploring the influence of carbon sources and salinity on the growth of microalgaeChoong Xin Yi0Teh Hui Ying1Lam Man Kee2Raviadaran Revathi3Chai Yee Ho4Tan Inn Shi5Foo Henry Chee Yew6Wong Voon-Loong7Loy Adrian Chun Minh8Chemical Engineering Department, Universiti Teknologi PETRONASChemical Engineering Department, Universiti Teknologi PETRONASChemical Engineering Department, Universiti Teknologi PETRONASChemical Engineering Department, Universiti Teknologi PETRONASChemical Engineering Department, Universiti Teknologi PETRONASDepartment of Chemical and Energy Engineering, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250Department of Chemical and Energy Engineering, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250School of Energy and Chemical Engineering, Xiamen University MalaysiaDepartment of Chemical and Biological Engineering, Monash UniversityIn the domain of microalgae cultivation, the selection of carbon source and salinity profoundly impacts the growth and metabolic activity of species like Chlorella sp. Carbon sources and salt serve as vital substrates, dictating not only biomass production but also shaping cellular processes essential for various applications, particularly as agricultural biofertilizers. This study investigated the impact of different carbon sources and varying concentrations of sodium chloride (NaCl) on the growth of Chlorella sp. It was found that CO2 bubbling significantly improved microalgae growth, resulting in a notable 5.60% increase compared to cultivation with sodium bicarbonate. Within a span of 14 days, Chlorella sp. reached its peak biomass of 1.32 g/L ± 1.2% under CO2 bubbling, outperforming NaHCO3 cultivation, indicating a more efficient carbon utilization. Furthermore, the study revealed that Chlorella sp. achieved its highest biomass and lipid yield under CO2 bubbling cultivation without the addition of NaCl (1.32 g/L ± 1.2% and 0.43 g/L ± 3.0 % respectively), while a NaCl concentration of 0.5 M yielded the highest lipid content (34% ± 1.8 %) but had relatively low lipid yield at 0.21 g/L ± 5.0%. This underscored the impact of NaCl stress on the growth and lipid content of Chlorella sp.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_01030.pdf |
| spellingShingle | Choong Xin Yi Teh Hui Ying Lam Man Kee Raviadaran Revathi Chai Yee Ho Tan Inn Shi Foo Henry Chee Yew Wong Voon-Loong Loy Adrian Chun Minh Exploring the influence of carbon sources and salinity on the growth of microalgae E3S Web of Conferences |
| title | Exploring the influence of carbon sources and salinity on the growth of microalgae |
| title_full | Exploring the influence of carbon sources and salinity on the growth of microalgae |
| title_fullStr | Exploring the influence of carbon sources and salinity on the growth of microalgae |
| title_full_unstemmed | Exploring the influence of carbon sources and salinity on the growth of microalgae |
| title_short | Exploring the influence of carbon sources and salinity on the growth of microalgae |
| title_sort | exploring the influence of carbon sources and salinity on the growth of microalgae |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_01030.pdf |
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