title: Accumulation of hexavalent chromium by an exopolysaccharide producing marine Enterobacter cloaceae.
abstract: An exopolysaccharide producing Enterobacter cloaceae (AK-I-MB-71a) was tested for its Cr (VI) tolerance. This isolate was not only resistant to this heavy metal but also showed enhanced growth and exopolysaccharide production in the presence of Cr (VI) at 25, 50 and 100 ppm concentrations. XRF analysis of both the biomass as well as the exopolysaccharide revealed that a sum total of about 60-70% chromium was accumulated by this bacterium. This indicated that this organism could prove to be a potential candidate in the field of bioremediation with respect to chromium removal.
authors.affiliation: Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, India.
authors.forename: Anita
authors.initials: A
authors.lastname: Iyer
authors.forename: Kalpana
authors.initials: K
authors.lastname: Mody
authors.forename: Bhavanath
authors.initials: B
authors.lastname: Jha
mesh_terms: D018533:Biomass; D002857:Chromium / Q000032:analysis / Q000493:pharmacokinetics*; D016972:Enterobacter cloacae / Q000254:growth & development* / Q000378:metabolism*; D004784:Environmental Monitoring / Q000379:methods*; D011135:Polysaccharides, Bacterial / Q000378:metabolism; D013052:Spectrometry, X-Ray Emission
chemical_list: D011135:Polysaccharides, Bacterial; D002857:Chromium; C074702:chromium hexavalent ion