Molybdenum disulfide nanoparticles concurrently stimulated biomass and β-carotene accumulation in Dunaliella salina.

Authors :: Luo SW
Alimujiang A
Cui J
Chen TT
Balamurugan S
Zheng JW
Wang X
Yang WD
Li HY
Source :: Bioresource technology [Bioresour Technol] 2021 Jan; Vol. 320 (Pt B), pp. 124391. Date of Electronic Publication: 2020 Nov 10.
Publication Year :: 2021
Abstract: Molybdenum disulfide nanoparticles (MoS <subscript>2</subscript> NPs) hold tremendous properties in wide domain of applications. In this study, the impact of MoS <subscript>2</subscript> NPs was investigated on algal physiological and metabolic properties and a two-stage strategy was acquired to enhance the commercial potential of Dunaliella salina. With 50 µg/L of MoS <subscript>2</subscript> NPs exposure, cellular growth and biomass production were promoted by 1.47- and 1.33-fold than that in control, respectively. MoS <subscript>2</subscript> NPs treated cells were subject to high light intensity for 7 days after 30 days of normal light cultivation, which showed that high light intensity gradually increased β-carotene content by 1.48-fold. Furthermore, analyses of primary metabolites showed that combinatorial approach significantly altered the biochemical composition of D. salina. Together, these findings demonstrated that MoS <subscript>2</subscript> NPs at an optimum concentration combined with high light intensity could be a promising approach to concurrently enhance biomass and β-carotene production in microalgae.<br /> (Copyright © 2020 Elsevier Ltd. All rights reserved.)

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