Abstract
ABSTRACT The aim of this study was to isolate and characterize bacterial strains from bauxite residue in the southern region of Minas Gerais, Brazil, by 16S rRNA gene sequencing and biochemical assays. Bacillus cohnii, Bacillus pseudofirmus, and Bacillus clarkii were identified among the isolates. The isolates were able to use a wide range of carbon sources and to grow at NaCl concentrations of up to 10%, temperatures from 10 to 40 °C, and pH from 7 to 10.5, producing a wide variety of organic acids. This is the first report on microbial composition of bauxite residue in Brazil.
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