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Redox mediators assisted-degradation of direct yellow 4

100%

Nouren S., Bhatti H. N., Iqbal M., Bibi I., Nazar N., Iqbat D. N., Kanwal Q., Kausar A., Hussain F.

Polish Journal of Environmental Studies

2017

tom 26

nr 6

Direct yellow 4 degradation was investigated in the presence of various mediators (p-coumaric acid, 1, hydroxybenzotriazole (HOBT), syringaldehyde, vanillin, syringic acid, veratryl alcohol, and pyrocatechol) at pre-optimized conditions of process variables, i.e., pH 5.0, temperature 50ºC, enzyme dose 24 U/mL, and 0.25 mM H₂O₂ concentration. Citrus limon peroxidase (CL-POD) was used for degradation of DY4 dye. In the absence of mediators, the DY4 degradation was 60%, whereas mediators enhanced the POD biodegradation efficiency up to 87%. Among mediators investigated, syringaldehyde showed promising efficiency. We investigated yringaldehyde concentrations in the range of 0.0125-0.5 mM, and 0.025 mM was optimum for maximum dye degradation, which revealed that mediators could be used to enhance the biodegradation of dyes.

Ograniczanie wyników

1 Polish Journal of Environmental Studies

1 Bhatti H. N.

1 Bibi I.

1 Hussain F.

1 Iqbal M.

1 Iqbat D. N.

1 Kanwal Q.

1 Kausar A.

1 Nazar N.

1 Nouren S.

1 2017

Wyniki wyszukiwania

Redox mediators assisted-degradation of direct yellow 4