Manipulation of light wavelength at appropriate growth stage to enhance biomass productivity and fatty acid methyl ester yield using Chlorella vulgaris

Dae Geun Kim; Changsu Lee; Seung Moon Park; Yoon E. Choi

doi:10.1016/j.biortech.2014.02.078

Manipulation of light wavelength at appropriate growth stage to enhance biomass productivity and fatty acid methyl ester yield using Chlorella vulgaris

Dae Geun Kim, Changsu Lee, Seung Moon Park, Yoon E. Choi

Research output: Contribution to journal › Article › peer-review

116 Citations (Scopus)

Abstract

LEDs light offer several advantages over the conventional lamps, thereby being considered as the optimal light sources for microalgal cultivation. In this study, various light-emitting diodes (LEDs) especially red and blue color with different light wavelengths were employed to explore the effects of light source on phototrophic cultivation of Chlorella vulgaris. Blue light illumination led to significantly increased cell size, whereas red light resulted in small-sized cell with active divisions. Based on the discovery of the effect of light wavelengths on microalgal biology, we then applied appropriate wavelength at different growth stages; blue light was illuminated first and then shifted to red light. By doing so, biomass and lipid productivity of C. vulgaris could be significantly increased, compared to that in the control. These results will shed light on a novel approach using LED light for microalgal biotechnology.

Original language	English
Pages (from-to)	240-248
Number of pages	9
Journal	Bioresource technology
Volume	159
DOIs	https://doi.org/10.1016/j.biortech.2014.02.078
Publication status	Published - 2014 May
Externally published	Yes

Bibliographical note

Funding Information:
This research was financially supported by the Ministry of Trade, Industry & Energy (MOTIE), Korea Institute for Advancement of Technology (KIAT) and Honam Institute for Regional Program Evaluation through the Leading Industry Development for Economic Region. This work was also supported by the Advanced Biomass R&D Center (ABC) of Korea Grant funded by the Ministry of Education, Science and Technology (ABC-2012-055032). In addition, this work was also supported by the Industrial Technology Research Infrastructure Program (N0000004) funded by the Ministry of Trade, Industry and Energy (MTE, Korea).

Keywords

Biodiesel
Chlorella vulgaris
LED
Microalgal cultivation
Wavelength shift

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2014.02.078

Cite this

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title = "Manipulation of light wavelength at appropriate growth stage to enhance biomass productivity and fatty acid methyl ester yield using Chlorella vulgaris",

abstract = "LEDs light offer several advantages over the conventional lamps, thereby being considered as the optimal light sources for microalgal cultivation. In this study, various light-emitting diodes (LEDs) especially red and blue color with different light wavelengths were employed to explore the effects of light source on phototrophic cultivation of Chlorella vulgaris. Blue light illumination led to significantly increased cell size, whereas red light resulted in small-sized cell with active divisions. Based on the discovery of the effect of light wavelengths on microalgal biology, we then applied appropriate wavelength at different growth stages; blue light was illuminated first and then shifted to red light. By doing so, biomass and lipid productivity of C. vulgaris could be significantly increased, compared to that in the control. These results will shed light on a novel approach using LED light for microalgal biotechnology.",

keywords = "Biodiesel, Chlorella vulgaris, LED, Microalgal cultivation, Wavelength shift",

author = "Kim, {Dae Geun} and Changsu Lee and Park, {Seung Moon} and Choi, {Yoon E.}",

note = "Funding Information: This research was financially supported by the Ministry of Trade, Industry & Energy (MOTIE), Korea Institute for Advancement of Technology (KIAT) and Honam Institute for Regional Program Evaluation through the Leading Industry Development for Economic Region. This work was also supported by the Advanced Biomass R&D Center (ABC) of Korea Grant funded by the Ministry of Education, Science and Technology (ABC-2012-055032). In addition, this work was also supported by the Industrial Technology Research Infrastructure Program (N0000004) funded by the Ministry of Trade, Industry and Energy (MTE, Korea).",

year = "2014",

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doi = "10.1016/j.biortech.2014.02.078",

language = "English",

volume = "159",

pages = "240--248",

journal = "Bioresource technology",

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AU - Kim, Dae Geun

AU - Lee, Changsu

AU - Park, Seung Moon

AU - Choi, Yoon E.

N1 - Funding Information: This research was financially supported by the Ministry of Trade, Industry & Energy (MOTIE), Korea Institute for Advancement of Technology (KIAT) and Honam Institute for Regional Program Evaluation through the Leading Industry Development for Economic Region. This work was also supported by the Advanced Biomass R&D Center (ABC) of Korea Grant funded by the Ministry of Education, Science and Technology (ABC-2012-055032). In addition, this work was also supported by the Industrial Technology Research Infrastructure Program (N0000004) funded by the Ministry of Trade, Industry and Energy (MTE, Korea).

PY - 2014/5

Y1 - 2014/5

N2 - LEDs light offer several advantages over the conventional lamps, thereby being considered as the optimal light sources for microalgal cultivation. In this study, various light-emitting diodes (LEDs) especially red and blue color with different light wavelengths were employed to explore the effects of light source on phototrophic cultivation of Chlorella vulgaris. Blue light illumination led to significantly increased cell size, whereas red light resulted in small-sized cell with active divisions. Based on the discovery of the effect of light wavelengths on microalgal biology, we then applied appropriate wavelength at different growth stages; blue light was illuminated first and then shifted to red light. By doing so, biomass and lipid productivity of C. vulgaris could be significantly increased, compared to that in the control. These results will shed light on a novel approach using LED light for microalgal biotechnology.

AB - LEDs light offer several advantages over the conventional lamps, thereby being considered as the optimal light sources for microalgal cultivation. In this study, various light-emitting diodes (LEDs) especially red and blue color with different light wavelengths were employed to explore the effects of light source on phototrophic cultivation of Chlorella vulgaris. Blue light illumination led to significantly increased cell size, whereas red light resulted in small-sized cell with active divisions. Based on the discovery of the effect of light wavelengths on microalgal biology, we then applied appropriate wavelength at different growth stages; blue light was illuminated first and then shifted to red light. By doing so, biomass and lipid productivity of C. vulgaris could be significantly increased, compared to that in the control. These results will shed light on a novel approach using LED light for microalgal biotechnology.

KW - Biodiesel

KW - Chlorella vulgaris

KW - LED

KW - Microalgal cultivation

KW - Wavelength shift

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Manipulation of light wavelength at appropriate growth stage to enhance biomass productivity and fatty acid methyl ester yield using Chlorella vulgaris

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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