and beef
extract (100%) within 6 h of incubation, followed by the tests in
the presence of 5 ml extract of wheat straw (82%) and paddy
straw (76%) after 24 h of incubation. With other supplements of
carbon and nitrogen source, less decolorization efficiency was
observed within 24 h (Table 1). The faster decolorization in the
medium containing pure (beef extract and peptone) and
agricultural extract (wheat straw and paddy straw) might be due
to the metabolism of these nitrogen sources, which is considered
essential for the regeneration of NADH required for azo dye
decolorization (2). Supplementation of agricultural by-products
extract could enhances the decolorization of Direct Blue GLL by
Comamonas sp. UVS along with production of lignolytic enzymes
reported earlier (22). The use of agricultural by-products (wheat
straw and paddy straw) instead of pure substrates (peptone and
beef extract) for the enhancement of the decolorization of
Remazol Red becomes an inexpensive and ecofriendly process
since utilizing of lignocellulosic waste for the degradation of
industrial effluents could resolve the problem of the disposal of
agro-residues which is present in larger quantities (28).