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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Nov 2016, 37 (6)                                     Back


nstantaneous and historical temperature effects on a-pinene

Biotransformation and detoxification of a greater tinctorial textile colorant using an isolated bacterial strain

 

Madhava Anil Kumar1, Ramasamy Priyadarshini1, Dhandapani Nilavunesan4, Muthulingam Seenuvasan1,

Vaidyanathan Vinoth Kumar2, Dhanasekaran Anuradha3 and Subramanian Sivanesan4*

 1Department of Biotechnology, Madha Engineering College, Chennai-600 069

2School of Bioengineering, Department of Biotechnology, SRM University, Chennai-603 203

3Centre for Biotechnology, Alagappa College of Technology, Anna University, Chennai-600 025

4Department of Applied Science and Technology, Alagappa College of Technology, Anna University, Chennai-600 025

*Corresponding Author E-mail: sivanesh1963@gmail.com

 

 

Publication Data

Paper received:

18 September, 2015

 

Revised received:

07 January, 2016

 

Re-Revised received:

14 May, 2016

 

Accepted:

26 August, 2016

 

Abstract

The acclimated cells of Achromobacter xylosoxidans strain APZ wereemployed to decolorize a textile colorant, Reactive green 19A (RG19A) of greater tinctorial strength.The strain decolorized and simultaneously mineralized RG19Awith a high average decolorization rate of 208.33 μgmin-1under normal operating (pH 7.0 and 35?C) and static conditions. The spectral and chromatographic data described that the decolorization was due to biodegradation facilitated by the extracellular oxidoreductases secreted by A. xylosoxidans strain APZ. The extent of RG19A mineralization during biotransformation was monitored by measuring the percentage reduction in the concentration of chemical oxygen demand and released aromatic amines. Plant growth parameters of seedlings of Phaseolus mungo, Triticum aestivum and Sorghum bicolor seedlings were assessed to monitor toxicity reduction.   

 

 

 Key words

Achromobacter xylosoxidans, Aromatic amines, Detoxification, Mineralization

 

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