Production of extra-cellular polymer in Azotobacter and biosorption of metal by exopolymer . Frontiers of Agriculture and Food Technology, [S. l.], v. 1, n. 1, p. 14–17, 2011. Disponível em: https://kevinpage.org/index.php/FAFT/article/view/686. Acesso em: 28 oct. 2026.