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- Title
Redox Mediators Assisted-degradation of Direct Yellow 4.
- Authors
Nouren, Shazia; Bhatti, Haq Nawaz; Iqbal, Munawar; Bibi, Ismat; Nazar, Nosheen; Iqbal, Dure Najaf; Kanwal, Qudsia; Kausar, Abida; Hussain, Fida
- Abstract
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 50°C, 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.
- Subjects
LEMON; PEROXIDASE; SYRINGIC acid; DYES &; dyeing; EUTROPHICATION
- Publication
Polish Journal of Environmental Studies, 2017, Vol 26, Issue 6, p2885
- ISSN
1230-1485
- Publication type
Article
- DOI
10.15244/pjoes/68564