title: Biodegradation and detoxification of melanoidin from distillery effluent using an aerobic bacterial strain SAG5 of Alcaligenes faecalis.
abstract: Distillery effluent retains very dark brown color even after anaerobic treatment due to presence of various water soluble, recalcitrant and coloring compounds mainly melanoidins. In laboratory conditions, melanoidin decolorizing bacteria was isolated and optimized the cultural conditions at various incubation temperatures, pH, carbon sources, nitrogen sources and combined effect of both carbon and nitrogen sources. The optimum decolorization (72.6 ± 0.56%) of melanoidins was achieved at pH 7.5 and temperature 37 °C on 5th day of cultivation. The toxicity evaluation with mung bean (Vigna radiata) revealed that the raw distillery effluent was environmentally highly toxic as compared to biologically treated distillery effluent, which indicated that the effluent after bacterial treatment is environmentally safe. This proves to be novel biological treatment technique for biodegradation and detoxification of melanoidin from distillery effluent using the bacterial strain SAG(5).
authors: Department of Microbiology, Maharshi Dayanand University, Rohtak, 124001 Haryana, India. anita.gangotra@gmail.com
authors: Anita Rani
authors: AR
authors: Santal
authors: N P
authors: NP
authors: Singh
authors: Baljeet Singh
authors: BS
authors: Saharan
mesh_terms: D000332:Aerobiosis; D042481:Alcaligenes faecalis / Q000378:metabolism*; D001673:Biodegradation, Environmental; D003116:Color; D017931:DNA Primers; D006863:Hydrogen-Ion Concentration; D008658:Inactivation, Metabolic; D016133:Polymerase Chain Reaction; D011108:Polymers / Q000378:metabolism* / Q000633:toxicity; D013696:Temperature
chemical_list: D017931:DNA Primers; D011108:Polymers; C011908:melanoidin polymers