Biodegradation of hazardous triphenylmethane dye methyl violet by Rhizobium radiobacter (MTCC 8161).
J Basic Microbiol
; 49 Suppl 1: S36-42, 2009 Sep.
Article
in En
| MEDLINE
| ID: mdl-19322828
ABSTRACT
Rhizobium radiobacter MTCC 8161 completely decolorized methyl violet (10 mg l(-1)) within 8 h both at static and shaking conditions. The decolorization time increased with increasing dye concentration. The effect of different carbon and nitrogen sources on the decolorization of methyl violet was studied. The maximum decolorization was observed in the presence of sucrose (1%) and urea (1%). UV-Visible, HPLC and FTIR analysis of extracted products confirmed biodegradation of methyl violet. The significant increase in the activities of lignin peroxidase and aminopyrine N-demethylase in the cells obtained after decolorization indicated involvement of these enzymes in the decolorization process. In addition to methyl violet, this strain also shows an ability to decolorize various industrial dyes, (red HE7B, yellow 4G, blue 2B, navy blue HE22, red M5B and red HE3B).
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Trityl Compounds
/
Agrobacterium tumefaciens
/
Coloring Agents
/
Gentian Violet
Language:
En
Journal:
J Basic Microbiol
Journal subject:
MICROBIOLOGIA
Year:
2009
Document type:
Article
Affiliation country:
Taiwan