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Hexavalent Chromium (Cr (VI)) Removal by Live Mycelium of a Trichoderma harzianum Strain | Sarkar 1 | Molecular Soil Biology

Hexavalent Chromium (Cr (VI)) Removal by Live Mycelium of a Trichoderma harzianum Strain  

Soumik Sarkar1 , Annamalai Satheshkumar2 , Robert Premkumar2
1. Al-Ameen Arts Science and Commerce College, P.G. and Research Dept. of Microbiology and Biotechnology- Bangalore-560027
2. UPASI Tea Research Foundation, Tea Research Institute, Nirar Dam BPO, Valparai-642 127, Tamil Nadu, India
Author    Correspondence author
Molecular Soil Biology, 2013, Vol. 4, No. 1   doi: 10.5376/msb.2013.04.0001
Received: 20 Dec., 2012    Accepted: 09 Jan., 2013    Published: 17 Feb., 2013
© 2013 BioPublisher Publishing Platform
This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Sarkar et al., 2012, Hexavalent Chromium (Cr (VI)) Removal by Live Mycelium of a Trichoderma harzianum Strain, Molecular Soil Biology, Vol.4, No.1 1-6 (doi: 10.5376/msb.2013.04.0001)

Abstract

Response of Trichoderma harzianum strain to different chromium concentrations was investigated by poison food technique. It was noticed that, the mycelial growth was inhibited up to 94 % at 40 mg/L concentration followed by 30 mg/L (91%).The chromium (VI) biosorption ability of Trichoderma harzianum was tested in vitro. The organism was inoculated on Czapek Dox broth medium containing 30 mg/L of Cr (VI) salt. The metal residues were analyzed at different day's interval (4, 5, 6 and 7 days). The effect of different pH and temperature on metal removal was also investigated. Results indicated that, at 7th day the metal removal reached the maximum level (90.2%). Further incubation did not increase the metal uptake. A pH range of 4~5 and temperature of 30℃ was optimum for Cr (VI) removal by T. harzianum in the present study.

Keywords
Chromium; Trichoderma harzianum; Biosorption; Ph; Temperature
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