Analysis of Carotenoids in Haloarchaea Species from Atacama Saline Lakes by High Resolution UHPLC-Q-Orbitrap-Mass Spectrometry: Antioxidant Potential and Biological Effect on Cell Viability.

Although the concentration of 250 μg/mL showed a trend to increase the cell viability, in the concentration of 15 μg/mL, a decrease in cell viability at 6 and 48 h was observed, while after 24 and 72 h, no significative differences were observed after cell stimulation ( Figure 5 ).

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