Ultraviolet-B radiation improves astaxanthin accumulation in green microalga Haematococcus pluvialis

Zhengyun Wu, Guanqun Chen, Siukuen Chong, Nai Ki MAK, Feng Chen, Yue Jiang*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

25 Citations (Scopus)


Ultraviolet-B (UV-B) radiation has significantly negative effect on cell survival rate (P < 0. 01) and positive effect on astaxanthin accumulation (P < 0. 01) of Haematococcus pluvialis. H. pluvialis accumulated 3. 2 mg/g of astaxanthin when being exposed to 5 W/m2 of UV-B for 60 min prior to 72 h of high light treatment, which was 122% higher than that of the control. This UV-B treatment also significantly stimulated lipid peroxidation and the value of malondialdehyde and glutathione peroxidase activities were 156 and 166% higher than those of control, respectively (P < 0. 01).

Original languageEnglish
Pages (from-to)1911-1914
Number of pages4
JournalBiotechnology Letters
Issue number12
Publication statusPublished - Dec 2010

Scopus Subject Areas

  • Biotechnology
  • Bioengineering
  • Applied Microbiology and Biotechnology

User-Defined Keywords

  • Antioxidant enzyme
  • Astaxanthin
  • Haematococcus pluvialis
  • Ultraviolet-B radiation


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