Accumulation of hexavalent chromium by an exopolysaccharide producing marine Enterobacter cloaceae.
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.
Iyer
Anita
A
Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, India.
Mody
Kalpana
K
Jha
Bhavanath
B
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
D011135:Polysaccharides, Bacterial; D002857:Chromium; C074702:chromium hexavalent ion