Lumostatic operation controlled by the optimum light intensity per dry weight for the effective production of Chlorella zofingiensis in the high cell density continuous culture
To maximize the production rate of Chlorella zofingiensis, a lumostatic continuous culture was operated under light intensities of 250–1510 μE m− 2 s− 1. The cell density and volumetric biomass production rate were increased without photo inhibition and reached 13.5 g-dry weight (dw) L− 1 on day 21....
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| Format: | Article |
| Language: | English |
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Elsevier
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/54730/ http://psasir.upm.edu.my/id/eprint/54730/1/Lumostatic%20operation%20controlled%20by%20the%20optimum%20light%20intensity%20.pdf |
| _version_ | 1848852617535422464 |
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| author | Imaizumi, Yuki Nagao, Norio Md Yusoff, Fatimah Kurosawa, Norio Kawasaki, Nobuyuki Toda, Tatsuki |
| author_facet | Imaizumi, Yuki Nagao, Norio Md Yusoff, Fatimah Kurosawa, Norio Kawasaki, Nobuyuki Toda, Tatsuki |
| author_sort | Imaizumi, Yuki |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | To maximize the production rate of Chlorella zofingiensis, a lumostatic continuous culture was operated under light intensities of 250–1510 μE m− 2 s− 1. The cell density and volumetric biomass production rate were increased without photo inhibition and reached 13.5 g-dry weight (dw) L− 1 on day 21.5 and 2.41 g-dw L− 1 day− 1 on day 10.5, respectively. These maximum values were higher than any previous photoautotrophic culture study with C. zofingiensis. The specific growth rate was maintained at a high level > 0.5 day− 1 until the light intensity per dry weight decreased below 28 μE g-dw− 1 s− 1, which coincided with the value estimated in our previous study, verifying the reliability of this estimated value. There was a strong relationship between the photosynthetic efficiency and light intensity per dry weight for C. zofingiensis. This relationship may be useful for evaluating species-specific productivity to select productive species. |
| first_indexed | 2025-11-15T10:40:56Z |
| format | Article |
| id | upm-54730 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:40:56Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
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| spelling | upm-547302018-04-20T05:35:14Z http://psasir.upm.edu.my/id/eprint/54730/ Lumostatic operation controlled by the optimum light intensity per dry weight for the effective production of Chlorella zofingiensis in the high cell density continuous culture Imaizumi, Yuki Nagao, Norio Md Yusoff, Fatimah Kurosawa, Norio Kawasaki, Nobuyuki Toda, Tatsuki To maximize the production rate of Chlorella zofingiensis, a lumostatic continuous culture was operated under light intensities of 250–1510 μE m− 2 s− 1. The cell density and volumetric biomass production rate were increased without photo inhibition and reached 13.5 g-dry weight (dw) L− 1 on day 21.5 and 2.41 g-dw L− 1 day− 1 on day 10.5, respectively. These maximum values were higher than any previous photoautotrophic culture study with C. zofingiensis. The specific growth rate was maintained at a high level > 0.5 day− 1 until the light intensity per dry weight decreased below 28 μE g-dw− 1 s− 1, which coincided with the value estimated in our previous study, verifying the reliability of this estimated value. There was a strong relationship between the photosynthetic efficiency and light intensity per dry weight for C. zofingiensis. This relationship may be useful for evaluating species-specific productivity to select productive species. Elsevier 2016-12 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/54730/1/Lumostatic%20operation%20controlled%20by%20the%20optimum%20light%20intensity%20.pdf Imaizumi, Yuki and Nagao, Norio and Md Yusoff, Fatimah and Kurosawa, Norio and Kawasaki, Nobuyuki and Toda, Tatsuki (2016) Lumostatic operation controlled by the optimum light intensity per dry weight for the effective production of Chlorella zofingiensis in the high cell density continuous culture. Algal Research, 20. pp. 110-117. ISSN 2211-9264 https://www.sciencedirect.com/science/article/pii/S2211926416303770 10.1016/j.algal.2016.09.015 |
| spellingShingle | Imaizumi, Yuki Nagao, Norio Md Yusoff, Fatimah Kurosawa, Norio Kawasaki, Nobuyuki Toda, Tatsuki Lumostatic operation controlled by the optimum light intensity per dry weight for the effective production of Chlorella zofingiensis in the high cell density continuous culture |
| title | Lumostatic operation controlled by the optimum light intensity per dry weight for the effective production of Chlorella zofingiensis in the high cell density continuous culture |
| title_full | Lumostatic operation controlled by the optimum light intensity per dry weight for the effective production of Chlorella zofingiensis in the high cell density continuous culture |
| title_fullStr | Lumostatic operation controlled by the optimum light intensity per dry weight for the effective production of Chlorella zofingiensis in the high cell density continuous culture |
| title_full_unstemmed | Lumostatic operation controlled by the optimum light intensity per dry weight for the effective production of Chlorella zofingiensis in the high cell density continuous culture |
| title_short | Lumostatic operation controlled by the optimum light intensity per dry weight for the effective production of Chlorella zofingiensis in the high cell density continuous culture |
| title_sort | lumostatic operation controlled by the optimum light intensity per dry weight for the effective production of chlorella zofingiensis in the high cell density continuous culture |
| url | http://psasir.upm.edu.my/id/eprint/54730/ http://psasir.upm.edu.my/id/eprint/54730/ http://psasir.upm.edu.my/id/eprint/54730/ http://psasir.upm.edu.my/id/eprint/54730/1/Lumostatic%20operation%20controlled%20by%20the%20optimum%20light%20intensity%20.pdf |