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Date Published: 28/04/2023
Online Published: 30/04/2023
Abstract Views: 160
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DOI: https://doi.org/10.54607/hcmue.js.20.4.3642(2023)
Issue
Vol. 20 No. 4 (2023)
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Articles
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Võ , H. T., Nguyễn , H. N., & Nguyễn , T. H. P. (2023). ACCUMULATION OF CAROTENOID AND LIPID IN MICROALGAE DUNALIELLA BARDAWIL DCCBC 15 CULTIVATED UNDER HIGH SALINITY CONDITIONS. HCMUE Journal of Science, 20(4), 727. https://doi.org/10.54607/hcmue.js.20.4.3642(2023)

ACCUMULATION OF CAROTENOID AND LIPID IN MICROALGAE DUNALIELLA BARDAWIL DCCBC 15 CULTIVATED UNDER HIGH SALINITY CONDITIONS

Hồng Trung Võ , Huỳnh Nhi Nguyễn , Thị Hồng Phúc Nguyễn

Main Article Content

Abstract

 

The salt-tolerant unicellular green algae Dunaliella bardawil (D. salina var bardawil) is a natural source of β-carotene with thecontents of up to 14% of dry weight under adverse environmental conditions, such as nutrient deficiency, high salinity, and high irradiance. This study aimed to assess the effect of salinity stress on the production of carotenoids and lipids under nutrient deficiency and the salinity of 3M and 4,5M in low-cost enriched natural seawater medium. The results showed that the carotenoids contents of the D. bardawil under the nutrient starvation (14,890 pg/tb) and the car/chl ratio (7,966) were higher compared with a high salinity of 3M (12,710 pg/tb và 7,269) and 4,5M condition (11,526 pg/tb và 7,258) (p<0,05). Similarly, lipids accumulation by D. bardawil under the nutrient starvation (145,946 pg/tb) and lipid/chl ratio (77,964) were also higher compared with a high salinity of 3M (122,038 pg/tb và 71,376) and 4,5M condition (122,963 pg/tb và 77,612). Thus, nutrient starvation is one of the strategies for the cultivation of D. bardawil to obtain high carotenoids and lipids contents from biomass.

 

Keywords

carotenoid, Dunaliella bardawil, lipid, nutrient starvation, salinity stress

Article Details

References

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