|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Journal of Scientific and Industrial Research (JSIR) >
JSIR Vol.70 [2011] >
JSIR Vol.70(11) [November 2011] >
| Title: | Biodecolourization of azo dyes using Phanerochaete chrysosporium: Effect of culture conditions and enzyme activities |
| Authors: | Pakshirajan, Kannan
Jaiswal, Shashank
Das, Ratul Kumar |
| Keywords: | Azo dyes
Dye decolourization
Lignin peroxidase
Manganese peroxidase
Phanerochaete chrysosporium |
| Issue Date: | Nov-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | This study presents effect of culture conditions [temp.
(28-39oC)
& agitation speed (0-200 rpm)] on biodecolourization of
azo dyes [Direct Red - 80 (DR-80) & Mordant Blue –
9 (MB-9)] over an initial concentration range of 10-100 mg/l using white
rot fungus, Phanerochaete chrysosporium in batch
shake flasks. Optimum values of temperature & agitation speed,
respectively,
for dye decolourization were found to be: DR-80, 39oC & 200 rpm;
and MB-9, 37oC & 150 rpm. Both dyes were best removed
at the least initial concentration (10 mg/l). Employing
Arrhenius equation, activation energies for decolourization of dyes were
estimated to be: DR-80, 32.67; and MB-9, 39.12 kJ/mol.
Maximum enzyme activities of LiP and MnP were found to be more with
DR-80 than with MB-9. Study proved very good potential
of ligninase producing fungus in decolourization of industrial
wastewaters containing
synthetic dyes. |
| Page(s): | 987-991 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.70(11) [November 2011]
|
|
