CULTURAL STRATEGY INCREASE ACCUMULATION OF CAROTENOID AND LIPID IN HAEMATOCOCCUS PLUVIALIS

Trieu Quoc Huy1, Vo Hong Trung1, , Truong Ngoc Hien1, Nguyen Thi Hong Phuc2
1 Nguyen Tat Thanh Univesity, Vietnam
2 Nguyen Tat Thanh University, Vietnam

Main Article Content

Abstract

Haematococcus pluvialis is a unicellular green microalgae with high commercial value due to its ability to accumulate large amounts of carotenoids, especially astaxanthin under adverse culturing conditions. High light or nutrient depletion both contribute to the growth and accumulation of carotenoids and lipids in microalgae. In this study, three different inhibitory culture conditions, namely nutrient depletion inhibitor culture, natural light inhibition, and inhibited by denitrification supplemented with NPK, were performed on BG11 medium to investigate the function lipid and carotenoid content of microalgae H. pluvialis. The results showed that H. pluvialis cells accumulated high levels of carotenoid pigments in culture conditions of denitrification and NPK supplementation (54.709 ± 1.905 mg/g), and the highest lipid content was obtained in natural light conditions (5.434 ± 0.146 mg/100g).

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References

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