Biosorption of heavy metals by the exopolysaccharide produced by Paenibacillus jamilae - Morillo Perez, Jose Antonio; Garcia-Ribera, Rafael; Quesada, Teresa; Aguilera, Margarita; Ramos-Cormenzana, Alberto; Monteoliva-Sanchez, Mercedes (WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY, 2008)