Influence of Medium Frequency Light/Dark Cycles on the Cultivation of <i>Auxenochlorella pyrenoidosa</i>
Light (wavelength, intensity, and light/dark cycle) have been considered as one of the most important parameters for microalgae cultivation. In this paper, the effect of medium frequency intermittent light on <i>Auxenochlorella pyrenoidosa</i> (formerly <i>Chlorella pyrenoidosa<...
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MDPI AG
2020-07-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/15/5093 |
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| author | Zhijie Chen Bosheng Su |
| author_facet | Zhijie Chen Bosheng Su |
| author_sort | Zhijie Chen |
| collection | DOAJ |
| description | Light (wavelength, intensity, and light/dark cycle) have been considered as one of the most important parameters for microalgae cultivation. In this paper, the effect of medium frequency intermittent light on <i>Auxenochlorella pyrenoidosa</i> (formerly <i>Chlorella pyrenoidosa</i>) cultivation was investigated. Three parameters of intermittent light, light intensity, light/dark ratio, and light/dark cycle were employed and the influence of these parameters on the productivity of <i>Auxenochlorella pyrenoidosa</i> was studied. The biomass yield and growth rates were mainly affected by the light fraction and cycle time. Light with 220 μE m<sup>−2</sup> s<sup>−1</sup> light intensity was determined as the optimal light intensity for biomass production. At the light intensity of 420 μE m<sup>−2</sup> s<sup>−1</sup>, the results indicated that the intermittent light improved the biomass production with larger light/dark ratio compared with the continuous light. At a lower mean light intensity over time, the intermittent light should be more suitable for biomass growth and the decrease in the light/dark ratio (L/D) will lead to a higher biomass productivity. The light/dark cycle time has little influence on the biomass yield. |
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| language | English |
| last_indexed | 2024-03-10T18:15:11Z |
| publishDate | 2020-07-01 |
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| spelling | doaj.art-9e1be0a142c44c27b4a254eac52eae252023-11-20T07:48:51ZengMDPI AGApplied Sciences2076-34172020-07-011015509310.3390/app10155093Influence of Medium Frequency Light/Dark Cycles on the Cultivation of <i>Auxenochlorella pyrenoidosa</i>Zhijie Chen0Bosheng Su1School of Mechanical and Energy Engineering, Jimei University, Xiamen 361021, ChinaSchool of Mechanical and Energy Engineering, Jimei University, Xiamen 361021, ChinaLight (wavelength, intensity, and light/dark cycle) have been considered as one of the most important parameters for microalgae cultivation. In this paper, the effect of medium frequency intermittent light on <i>Auxenochlorella pyrenoidosa</i> (formerly <i>Chlorella pyrenoidosa</i>) cultivation was investigated. Three parameters of intermittent light, light intensity, light/dark ratio, and light/dark cycle were employed and the influence of these parameters on the productivity of <i>Auxenochlorella pyrenoidosa</i> was studied. The biomass yield and growth rates were mainly affected by the light fraction and cycle time. Light with 220 μE m<sup>−2</sup> s<sup>−1</sup> light intensity was determined as the optimal light intensity for biomass production. At the light intensity of 420 μE m<sup>−2</sup> s<sup>−1</sup>, the results indicated that the intermittent light improved the biomass production with larger light/dark ratio compared with the continuous light. At a lower mean light intensity over time, the intermittent light should be more suitable for biomass growth and the decrease in the light/dark ratio (L/D) will lead to a higher biomass productivity. The light/dark cycle time has little influence on the biomass yield.https://www.mdpi.com/2076-3417/10/15/5093light-emitting diode (LED)<i>Auxenochlorella pyrenoidosa</i>medium frequencylight/dark cycle |
| spellingShingle | Zhijie Chen Bosheng Su Influence of Medium Frequency Light/Dark Cycles on the Cultivation of <i>Auxenochlorella pyrenoidosa</i> Applied Sciences light-emitting diode (LED) <i>Auxenochlorella pyrenoidosa</i> medium frequency light/dark cycle |
| title | Influence of Medium Frequency Light/Dark Cycles on the Cultivation of <i>Auxenochlorella pyrenoidosa</i> |
| title_full | Influence of Medium Frequency Light/Dark Cycles on the Cultivation of <i>Auxenochlorella pyrenoidosa</i> |
| title_fullStr | Influence of Medium Frequency Light/Dark Cycles on the Cultivation of <i>Auxenochlorella pyrenoidosa</i> |
| title_full_unstemmed | Influence of Medium Frequency Light/Dark Cycles on the Cultivation of <i>Auxenochlorella pyrenoidosa</i> |
| title_short | Influence of Medium Frequency Light/Dark Cycles on the Cultivation of <i>Auxenochlorella pyrenoidosa</i> |
| title_sort | influence of medium frequency light dark cycles on the cultivation of i auxenochlorella pyrenoidosa i |
| topic | light-emitting diode (LED) <i>Auxenochlorella pyrenoidosa</i> medium frequency light/dark cycle |
| url | https://www.mdpi.com/2076-3417/10/15/5093 |
| work_keys_str_mv | AT zhijiechen influenceofmediumfrequencylightdarkcyclesonthecultivationofiauxenochlorellapyrenoidosai AT boshengsu influenceofmediumfrequencylightdarkcyclesonthecultivationofiauxenochlorellapyrenoidosai |