Abstract

An economic microalgae Haematococcus pluvialis CH-1 was used as experimental material. An experiment of adding six grades of concentrations of Vitamin-B₁ and Vitamin-B₁₂ respectively was conducted. Cell density, carotenoid content was measured. The results showed that the growth of H. pluvialis was accelerated significantly by adding of Vitamin-B₁ and Vitamin-B₁₂ respectively. The optimal adding concentration of Vitamin-B₁ and Vitamin-B₁₂ respectively for H. pluvialis was 10000 and 50 μg/L. Under the optimal concentration for H. pluvialis, cells density, carotenoid content were enhanced with Vitamin-B₁: 20.1 and 21.3%; Vitamin-B₁₂: 29.5 and 24.4% higher than the blank respectively. On the mass culture of motile cells of H. pluvialis, properly adding Vitamin-B₁ and Vitamin-B₁₂ respectively was effective for increase cells density and carotenoid content.

Keywords:

Carotenoid, Haematococcus pluvialis, vitamin-B₁, vitamin-B₁₂,

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