Table 1 Summary of the results obtained. Color evolution of the solution, time of Mn drop in solution, presence of biofilm and pH values at the end of the experiment (8 days), initial dissolution rates (r_Si).

	Color of the solution				Drop of Mn in solution	Biofilm at the end of the experiment	pH at the end of the experiment	r_Si (g/m²/d)
	At 2 days	At 3 days	At 6 days	At 8 days (end)	Drop of Mn in solution	Biofilm at the end of the experiment	pH at the end of the experiment	r_Si (g/m²/d)
[VM100]	Colorless	Colorless	Colorless	Colorless	Not observed	Not observed	7.4 ± 0.0	1.87 ± 0.49
[VM100 + P. putida]	Yellow/green	Brown	Dark brown	Dark brown	After 2 days	Observed	7.2 ± 0.1	0.90 ± 0.29
[VM50 + P. putida]	Light yellow	Light yellow	Brown	Brown	After 3 Days	Observed	6.8 ± 0.1
[VM25 + P. putida]	Light yellow	Light yellow	Light yellow	Light brown	After 6 Days	Observed	6.4 ± 0.1
[VNM100]	Colorless	Colorless	Colorless	Colorless	Not observed	Not observed	7.4 ± 0.1	1.50 ± 0.15
[VNM100 + P. putida]	Light yellow	Light yellow	Light yellow	Light yellow	Not observed	Not observed	7.0 ± 0.0	0.89 ± 0.12
[P. putida]	Colorless	Colorless	Colorless	Colorless	Not observed	Not observed	5.8 ± 0.3

Standard deviations represent the experimental uncertainties calculated on the two set of experiments. Initial pH was 6.5 ± 0.1 for all conditions and all the solutions were colorless at the beginning of the experiment.

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