UPM Institutional Repository

Decolorization of azo dyes by local microorganisms


Wan Johari, Wan Lutfi and Mohd Isa, Razlin Izwan and Ghazali, Norhusna and Mat Arif, Noorliza and Abd. Shukor, Mohd. Yunus (2013) Decolorization of azo dyes by local microorganisms. In: International Conference on Environmental Forensics 2013, 11-14 Nov. 2013, Marriot Hotel, Putrajaya, Malaysia. (pp. 357-361).


Several local microorganisms were isolated and screened for their capabilities to decolorize selected azo dyes. Two isolates, RII and NHG have shown their capabilities to decolorize azo dyes i.e. Metanil Yellow (monoazo) and Reactive Black 5 (diazo), respectively, under aerobic condition at room temperature. 96.0 % decolorization of Reactive Red 120 has been attained by the RII isolate. Crocein Orange G and Orange II, both have exactly the same molecular weights, were 23.7 and 68.5 % decolorized, respectively, by the same isolate under agitated conditions. 66.6, 61.4 and 11.4 % decolorization has been achieved by isolate NHG when tested with Direct Blue 71, Amaranth and Tartrazine, respectively. No correlation between degradation rate and molecular weight, number of azo bonds or presence of aromatic molecules has been observed.

Download File

PDF (Abstract)
Decolorization of azo dyes by local microorganisms.pdf

Download (34kB) | Preview

Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Faculty of Environmental Studies
DOI Number: https://doi.org/10.1007/978-981-4560-70-2_65
Publisher: Springer
Keywords: Azo dyes; Biodecolorization; Metanil yellow; Reactive black 5
Depositing User: Nabilah Mustapa
Date Deposited: 07 Jun 2017 08:53
Last Modified: 07 Jun 2017 08:53
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/978-981-4560-70-2_65
URI: http://psasir.upm.edu.my/id/eprint/55768
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item