Biodecolorization of textile azo dye using Bacillus sp. strain CH12 isolated from alkaline lake

Guadie, A; Tizazu, S; Melese, M; Guo, W; Ngo, HH; Xia, S

Biodecolorization of textile azo dye using Bacillus sp. strain CH12 isolated from alkaline lake

Guadie, A Tizazu, S Melese, M Guo, W

Ngo, HH

Xia, S

Permalink

Publication Type:: Journal Article
Citation:: Biotechnology Reports, 2017, 15 pp. 92 - 100
Issue Date:: 2017-09-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Accepted ManuscriptAdobe PDF (369.29 kB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Guadie, A	en_US
dc.contributor.author	Tizazu, S	en_US
dc.contributor.author	Melese, M	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Xia, S	en_US
dc.date.available	2017-06-29	en_US
dc.date.issued	2017-09-01	en_US
dc.identifier.citation	Biotechnology Reports, 2017, 15 pp. 92 - 100	en_US
dc.identifier.uri	http://hdl.handle.net/10453/119871
dc.description.abstract	© 2017 The Authors Textile azo dye decolorizing bacteria were isolated from alkaline Lakes Abaya and Chamo using Reactive Red 239 (RR239) dye. Through subsequent screening process, strain CH12 was selected to investigate the effects of nutrient supplement, DO, pH, temperature, dye concentration and types on decolorization. Based on 16S rRNA gene sequence analysis, strain CH12 was identified as Bacillus sp. Decolorization efficiencies were significantly enhanced with carbon (≥98%) and organic nitrogen (∼100%) supplements. Complete decolorization was also observed under anoxic and anaerobic conditions, and at the temperature of 30 °C and the pH of 10. However, the azo dye decolorization efficiency of strain CH12 was significantly reduced when NaNO3 (1–8%) was supplemented or under aerobic culturing condition (≤6%), indicating that RR239 was less preferred electron acceptor. Overall, strain CH12 can be a promising candidate for decolorization applications due to its potential to effectively decolorize higher RR239 concentrations (50−250 mg/L) and six additional dyes.	en_US
dc.relation.ispartof	Biotechnology Reports	en_US
dc.relation.isbasedon	10.1016/j.btre.2017.06.007	en_US
dc.title	Biodecolorization of textile azo dye using Bacillus sp. strain CH12 isolated from alkaline lake	en_US
dc.type	Journal Article
utslib.citation.volume	15	en_US
utslib.for	1002 Environmental Biotechnology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	15	en_US

Abstract:

© 2017 The Authors Textile azo dye decolorizing bacteria were isolated from alkaline Lakes Abaya and Chamo using Reactive Red 239 (RR239) dye. Through subsequent screening process, strain CH12 was selected to investigate the effects of nutrient supplement, DO, pH, temperature, dye concentration and types on decolorization. Based on 16S rRNA gene sequence analysis, strain CH12 was identified as Bacillus sp. Decolorization efficiencies were significantly enhanced with carbon (≥98%) and organic nitrogen (∼100%) supplements. Complete decolorization was also observed under anoxic and anaerobic conditions, and at the temperature of 30 °C and the pH of 10. However, the azo dye decolorization efficiency of strain CH12 was significantly reduced when NaNO3 (1–8%) was supplemented or under aerobic culturing condition (≤6%), indicating that RR239 was less preferred electron acceptor. Overall, strain CH12 can be a promising candidate for decolorization applications due to its potential to effectively decolorize higher RR239 concentrations (50−250 mg/L) and six additional dyes.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/119871