Enhancing cell growth and lutein productivity of Desmodesmus sp. F51 by optimal utilization of inorganic carbon sources and ammonium salt

Youping Xie, Xurui Zhao, Jianfeng Chen, Xuqiu Yang, Shih Hsin Ho, Baobei Wang, Jo-Shu Chang, Ying Shen

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The type and concentration of inorganic carbon and nitrogen sources were manipulated to improve cell growth and lutein productivity of Desmodesmus sp. F51. Using nitrate as nitrogen source, the better cell growth and lutein accumulation were obtained under 2.5% CO2 supply when compared to the addition of NaHCO3 or Na2CO3. To solve the pH variation problem of ammonium consumption, the strategy of using dual carbon sources (NaHCO3 and CO2) was explored. A lower bicarbonate-C: ammonium-N ratio led to a lower culture pH as well as lower lutein productivity, but significantly enhanced the auto-flocculation efficiency of the microalgal cells. The highest biomass productivity (939 mg/L/d) and lutein productivity (5.22 mg/L/d) were obtained when the bicarbonate-C/ammonium-N ratio and ammonium-N concentration were 1:1 and 150 mg/L, respectively. The lutein productivity of 5.22 mg/L/d is the highest value ever reported in the literature using batch phototrophic cultivation.

Original languageEnglish
Pages (from-to)664-671
Number of pages8
JournalBioresource Technology
Volume244
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

Lutein
inorganic carbon
Cell growth
Ammonium Compounds
Carbon
ammonium
Salts
Productivity
salt
productivity
Bicarbonates
bicarbonate
Nitrogen
Flocculation
inorganic nitrogen
flocculation
Nitrates
Biomass
nitrate
nitrogen

All Science Journal Classification (ASJC) codes

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

Cite this

Xie, Youping ; Zhao, Xurui ; Chen, Jianfeng ; Yang, Xuqiu ; Ho, Shih Hsin ; Wang, Baobei ; Chang, Jo-Shu ; Shen, Ying. / Enhancing cell growth and lutein productivity of Desmodesmus sp. F51 by optimal utilization of inorganic carbon sources and ammonium salt. In: Bioresource Technology. 2017 ; Vol. 244. pp. 664-671.
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Enhancing cell growth and lutein productivity of Desmodesmus sp. F51 by optimal utilization of inorganic carbon sources and ammonium salt. / Xie, Youping; Zhao, Xurui; Chen, Jianfeng; Yang, Xuqiu; Ho, Shih Hsin; Wang, Baobei; Chang, Jo-Shu; Shen, Ying.

In: Bioresource Technology, Vol. 244, 01.01.2017, p. 664-671.

Research output: Contribution to journalArticle

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AU - Ho, Shih Hsin

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