Enhancing microalgal oil/lipid production from Chlorella sorokiniana CY1 using deep-sea water supplemented cultivation medium

Chun Yen Chen, Jo Shu Chang, Hsin Yueh Chang, Tzong Yueh Chen, Jou Hsien Wu, Wen Lung Lee

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

Engineering strategies were applied in this study to promote the autotrophic growth and oil accumulation of an oil-rich indigenous microalga Chlorella sorokiniana CY1 using deep-sea water (DSW) as the medium. The addition of 20% DSW to the culture medium effectively enhanced the cell growth and oil accumulation of C. sorokiniana CY1, leading to an oil content and biomass concentration of 61.0% and 3.0. g/L, respectively. The microalga strain was also successfully grown in 5. L plastic bag-type photobioreactor on DSW-amended medium, obtaining an oil content, biomass concentration, and biomass productivity of 51.7%, 2.4. g/L, and 176.6. mg/L/d, respectively. The semi-batch cultivation resulted in stable biomass production, but the lipid production efficiency slightly decreased. The main fatty acids in the lipid produced from C. sorokiniana CY1 were palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1), linoleic acid (C18:2) and eicosenoic acid (C20:1). This lipid quality is suitable for biodiesel production.

Original languageEnglish
Pages (from-to)74-81
Number of pages8
JournalBiochemical Engineering Journal
Volume77
DOIs
Publication statusPublished - 2013 Aug 5

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Environmental Engineering
  • Bioengineering
  • Biomedical Engineering

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