Abstract

An economic microalgae Haematococcus pluvialis CH-1 was used as experimental material. An experiment of adding six grades of concentrations of Vitamin-B₁₂ and Vitamin-H respectively was conducted. Cell density, biomass and astaxanthin content were measured. The results showed that the growth of H. pluvialis was accelerated significantly by adding of Vitamin-B₁₂ and Vitamin-H, respectively. The optimal adding concentration of Vitamin-B₁₂ and Vitamin-H respectively for H. pluvialis was 50 and 500 &mug/L. Under the optimal concentration for H. pluvialis, cells density, biomass and astaxanthin content were enhanced with Vitamin-B₁₂: 29.5, 30.0 and 28.3%; Vitamin-H: 17.1, 29.2 and 22.6% higher than the blank, respectively. On the mass culture of motile cells of H. pluvialis, properly adding Vitamin-B₁₂ and Vitamin-H, respectively was effective for increase cells density, biomass and astaxanthin content.

Keywords:

Haematococcus pluvialis, vitamin-b₁₂, vitamin-H, astaxanthin,

References

Competing interests

The authors have no competing interests.

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