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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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Main Authors: Imaizumi, Yuki, Nagao, Norio, Md Yusoff, Fatimah, Kurosawa, Norio, Kawasaki, Nobuyuki, Toda, Tatsuki
Format: Article
Language:English
Published: Elsevier 2016
Online Access:http://psasir.upm.edu.my/id/eprint/54730/1/Lumostatic%20operation%20controlled%20by%20the%20optimum%20light%20intensity%20.pdf
http://psasir.upm.edu.my/id/eprint/54730/
https://www.sciencedirect.com/science/article/pii/S2211926416303770
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spelling my.upm.eprints.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
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
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.
format Article
author Imaizumi, Yuki
Nagao, Norio
Md Yusoff, Fatimah
Kurosawa, Norio
Kawasaki, Nobuyuki
Toda, Tatsuki
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
author_facet Imaizumi, Yuki
Nagao, Norio
Md Yusoff, Fatimah
Kurosawa, Norio
Kawasaki, Nobuyuki
Toda, Tatsuki
author_sort Imaizumi, Yuki
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_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_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_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
publisher Elsevier
publishDate 2016
url http://psasir.upm.edu.my/id/eprint/54730/1/Lumostatic%20operation%20controlled%20by%20the%20optimum%20light%20intensity%20.pdf
http://psasir.upm.edu.my/id/eprint/54730/
https://www.sciencedirect.com/science/article/pii/S2211926416303770
_version_ 1643835694486913024
score 13.211869

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