Combined strategy for 17-α-ethynilestradiol removal, CO2 fixation, and carotenoid accumulation using Thermosynechococcus sp. CL-1 cultivation

Birgitta Narindri Rara Winayu, Sheng Bin Tsai, Hsin Ta Hsueh, Hsin Chu

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

An isolated cyanobacterium, Thermosynechococcus sp. CL-1 (TCL-1), is a potential CO2 fixation, estrogen removal, and pigments production agent even under extreme conditions. In this study, TCL-1 was cultivated under various 17-α-ethinylestradiol/EE2 contents and growth conditions (light intensities and dissolved inorganic nitrogen/DIN). Under low EE2 concentration (1 mg/L), TCL-1 presented hormesis phenomenon with promotion of biomass productivity (68.2 ± 0.6 mg/L/h) and β-carotene productivity (0.47 ± 0.12 mg/L/h) compared to control cultivation without EE2. Strong endurance of TCL-1 was indicated by insignificant biomass growth reduction, even under 10 mg/L EE2. Moreover, compared to the variety of DIN levels, light intensity presented a greater influence on growth, CO2 fixation, and carotenoid accumulation of TCL-1. Total EE2 removal by TCL-1 reached the range of 66.4–82.3 % and the process was initiated by adsorption on cells’ surfaces prior to accumulation.

Original languageEnglish
Pages (from-to)137-146
Number of pages10
JournalProcess Biochemistry
Volume128
DOIs
Publication statusPublished - 2023 May

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biochemistry
  • Applied Microbiology and Biotechnology

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