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. 2021 Feb 22;9(2):456. doi: 10.3390/microorganisms9020456

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© 2021 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 (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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The Pb(II) removal capacity of distinct strains of LAB. Panel (A): Five selected pairs of strains from the same species but with distinct removal capacities. Panel (B): Two selected pairs of strains from the same species but with similar removal capacities. Panel (C): Four selected groups of strains from the same genus but with distinct removal capacities. Panel (D): Four selected strains from groups of cocci with distinct removal capacities. Metal removal capacity was defined as the mean ± SD percentage of the initial quantity of metal in solution, in triplicate experiments. Different letters indicate significant (p < 0.05) between-strain differences.