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. 2015 Jun 3;13(6):3531–3549. doi: 10.3390/md13063531

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© 2015 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).

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Radical scavenging activity (RSA) on the free radical 1,1-diphenyl-2-picrylhydrazyl (DPPH) and iron and copper chelating activities of methanol extracts of four strains belonging to the Nannochloris (SBL1 and SBL4), Picochlorum (SBL2) and Desmochloris (SBL3) genera. Solid and error bars represent the average and standard deviation values, respectively (n = 6). Butylated hydroxytoluene (BHT; positive control) had an RSA of 88% at 1 mg/mL. Ethylenediamine tetraacetic acid (EDTA; positive control) had a metal chelating activity of 76% (copper) and 96% (iron) at a concentration of 1 mg/mL.