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

Kim, Jee Young1; Lee, Changsu2; Jeon, Min Seo1; Park, Jaewon3,4; Choi, Yoon-E1

2018-11

10.1016/j.biortech.2018.08.014

BIORESOURCE TECHNOLOGY   影响因子和分区

0960-8524

1873-2976

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.

Haematococcus pluvialis Astaxanthin Electrical treatment Periodical treatment

SCI ; EI

英语

其他

International Young Scientists Research Grant - National Natural Science Foundation of China (NSFC)[31750110453]

Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels

Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels

WOS:000445043600097

ELSEVIER SCI LTD

20183205675622

Biotechnology

Biotechnology:461.8

BIOLOGY & BIOCHEMISTRY

Web of Science

1.Korea Univ, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea
2.World Inst Kimchi, Microbiol & Funct Res Grp, Gwangju 61755, South Korea
3.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Dept Biomed Engn, Shenzhen 518055, Peoples R China

Kim, Jee Young,Lee, Changsu,Jeon, Min Seo,et al. Enhancement of microalga Haematococcus pluvialis growth and astaxanthin production by electrical treatment[J]. BIORESOURCE TECHNOLOGY,2018,268:815-819.

Kim, Jee Young,Lee, Changsu,Jeon, Min Seo,Park, Jaewon,&Choi, Yoon-E.(2018).Enhancement of microalga Haematococcus pluvialis growth and astaxanthin production by electrical treatment.BIORESOURCE TECHNOLOGY,268,815-819.

Kim, Jee Young,et al."Enhancement of microalga Haematococcus pluvialis growth and astaxanthin production by electrical treatment".BIORESOURCE TECHNOLOGY 268(2018):815-819.