Optimization and characterization of chromium(VI) reduction in saline condition by moderately halophilic Vigribacillus sp. isolated from mangrove soil of Bhitarkanika, India

► Isolation of a new halophilic bacterium from saline mangrove soil. ► Indentified as Vigribacillus sp. with potential for Cr(VI) reduction. ► Ability to reduce Cr(VI) to Cr(III) in relatively high salt medium. ► Complete characterization of reduced Cr(III) species. ► Formation of nanometric size amorphous Cr(III) hydroxide.