Abstract                 Volume:6  Issue-4  Year-2019          Original Research Articles

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The effect of nutrients on the growth of microalgae Haematococcus lacustris (Girod-chantrans) Rostafinski 1875
Dang Mau TRINH1*, Thi Trang NGUYEN1, Phuoc Kha NGUYEN1, Nguyen Quynh Anh TRAN2 and Chau Tuan VO1
1Faculty of Biology and Environmental Sciences, The University of Danang - University of Education, Danang, Vietnam
2Faculty of Chemistry, The University of Danang - University of Education, Danang, Vietnam
*Corresponding author
Abstract:

Haematococcus lacustris is capable to synthesize high content of astaxanthin. Moreover, astaxanthin extracted from H.lacustris has been shown to have the highest anti-oxidativeactivity. While the demand for astaxanthin in the world is increasing, the production of astaxanthin from H. lacustris is still not easy since they have low growth rate and are very sensitive to changes in culture conditions. This study aimed at investigating the effect of nutritional factors on the growth rate of H. lacustris in order to determine the optimal medium for the biomass growth and astaxanthin synthesis of this specy. The results showed that H.lacustris grew better in RM culture medium (2.62 ± 0.17 × 105 cells/ml) than in BBM culture medium (2.44 ± 0.10 × 105 cells/ml). The highest cell density of H. lacustris was achieved in the RM medium with NaNO3 at 1200 mg/l (3.72 ± 0.022 × 105 cells/ml), and in the RM medium with K2HPO4 at 320 mg/l (3.42 ± 0.05 × 105 cells/ml).

Keywords: Astaxanthin Chlorophyta Haematococcus lacustris Mass culture Nutrient conditions
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How to cite this article:

Trinh, D. M., Nguyen, T. T., Nguyen, P. K., Tran, N. Q. A., Vo, C. T., 2019. The effect of nutrients on the growth of microalgae Haematococcus lacustris (Girod-chantrans) Rostafinski 1875.Int.J.Curr.Res.Biosci.Plantbiol. 6(4): 17-23. doi: https://doi.org/10.20546/ijcrbp.2019.604.003