Enhancement of microalga Haematococcus pluvialis growth and astaxanthin production by electrical treatment

Jee Young Kim, Changsu Lee, Min Seo Jeon, Jaewon Park, Yoon-E Choi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, we investigated the effects of electrical treatment on Haematococcus pluvialis growth. The slow growth of H. pluvialis is a major limitation for its mass production. We discovered that electrical treatment may promote the growth of H. pluvialis. To evaluate optimal growth-promoting conditions, the algal growth rate was investigated at various voltages. The optimum current was identified as 100 mA (voltage: 25 V). In comparison with the non-treated cells, those subjected to electrical treatment showed a 1.2 fold increase in cell density. Further experiments confirmed the direct impact of electrical treatment on the growth of H. pluvialis. The periodic application of electrical voltage resulted in a significant increase in the dry weight and astaxanthin production. The astaxanthin content in the periodic application of electrical treatment was 32.6 mg/L, which was a 10% increase compared to those in the non-treated controls. This strategy may serve as a novel approach to enhance H. pluvialis growth as well as astaxanthin production.

Original languageEnglish
Pages (from-to)815-819
Number of pages5
JournalBioresource Technology
Volume268
DOIs
Publication statusPublished - 2018 Nov 1

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microalga
Electric potential
astaxanthine
Cells
fold
experiment
Experiments

Keywords

  • Astaxanthin
  • Electrical treatment
  • Haematococcus pluvialis
  • Periodical treatment

ASJC Scopus subject areas

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

Cite this

Enhancement of microalga Haematococcus pluvialis growth and astaxanthin production by electrical treatment. / Kim, Jee Young; Lee, Changsu; Jeon, Min Seo; Park, Jaewon; Choi, Yoon-E.

In: Bioresource Technology, Vol. 268, 01.11.2018, p. 815-819.

Research output: Contribution to journalArticle

Kim, Jee Young ; Lee, Changsu ; Jeon, Min Seo ; Park, Jaewon ; Choi, Yoon-E. / Enhancement of microalga Haematococcus pluvialis growth and astaxanthin production by electrical treatment. In: Bioresource Technology. 2018 ; Vol. 268. pp. 815-819.
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