@article { ISI:000262966200010,
	title = {Chromate reduction by PVA-alginate immobilized streptomyces griseus in a bioreactor},
	journal = {Biotechnology Letters},
	volume = {31},
	number = {1},
	year = {2009},
	month = {JAN},
	pages = {71-76},
	publisher = {SPRINGER},
	address = {VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS},
	abstract = {<p>Microbial reduction of toxic Cr(6+) to the less toxic Cr(3+) is potentially a useful bioremediation process. Among the matrices tested for whole cell immobilization of an efficient chromate-reducing Streptomyces griseus strain, PVA-alginate was the most effective and was used for reduction of Cr(VI) in a bioreactor. Cr(6+) reduction efficiency decreased as Cr(6+) was increased from 2 to 12 mg l(-1) but increased with an increase in biomass concentration. However, increasing the flow rate from 2 to 8 ml h(-1) did not significantly affect Cr(6+) reduction. The reduction was faster in simulated effluent than in synthetic medium and complete removal of 8 mg Cr(6+) l(-1) from effluent and synthetic medium occurred in 2 and 12 h, respectively. Our results indicate that immobilized S. griseus cells could be applied for the large-scale bioremediation of chromate-containing effluents and wastewaters.</p>},
	keywords = {Bioremediation, Chromate reduction, Immobilized cells, Polyvinyl alcohol-alginate, Streptomyces griseus},
	issn = {0141-5492},
	doi = {10.1007/s10529-008-9829-8},
	author = {Poopal, Ashwini C. and Laxman, Ryali Seeta}
}
