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A Bioremediation Approach to Mercury Removal in a Shake Flask Culture Using <em>Pseudomonas putida</em> (ATCC 49128) | OMICS International| Abstract
ISSN: 2155-9872

Journal of Analytical & Bioanalytical Techniques
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  • Research Letter   
  • J Anal Bioanal Tech 2016, Vol 7(3): 312
  • DOI: 10.4172/2155-9872.1000312

A Bioremediation Approach to Mercury Removal in a Shake Flask Culture Using Pseudomonas putida (ATCC 49128)

Abd Aziz Bin Mohd Azoddein1,2, Mani Malam Ahmad1*, Rosli Mohd Yunus1 and Nik Meriam Nik Sulaiman1
1Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang (UMP), , Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia
2Department of Chemical Engineering, Faculty of Engineering, University Malaya, Kuala Lumpur, Malaysia
*Corresponding Author : Mani Malam Ahmad, Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang (UMP), Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia, Tel: +601136560301, Email: [email protected]

Received Date: Mar 14, 2016 / Accepted Date: Apr 08, 2016 / Published Date: Apr 15, 2016


Mercury is one of the most poisonous elements found on earth bonded to sulfhydryl groups of enzymes and proteins, thereby inactivating vital cell functions. Indeed this has drawn the attention of many environmental researchers who have been attempting through various mean to expunging mercury from these contaminated medium. Biological approach provided a satisfactory outcome in the clean-up of mercury contaminated soil and water due to its high potential for greater performance, environment friendliness and cost effectiveness. Mercuryresistant bacterial strain (P. putida ATCC 49128), was experimented on its potential to grow and reduce mercury to a permissible level under optimum conditions of nutrient, pH and other related physical factors in an incubator shake flask. It was observed that P. putida displayed a usual growth pattern when tried at low level mercury concentration of 1.0 μM, 6.0 μM and 19.0 μM, by exponentially growing during the first 4 hours of inoculation, but drastically decreased by the end of 24 hours’ time. This was indicated by the mercury removal rate of 99.0%, 99.83% and 98.58% in the three mercury concentrations used. Also, under the same optimum condition of growth, mercury concentration of 1000 μM was reduced by 92.0% after the first initial 1 hour to 98.0% at the end of 28 hour study. Comparably, similar trend was also observed when P. putida was used as bioaugmented organism to treat mercury contaminated samples from two petroleum industry based wastewater. A reduction rate of 84% was observed at the initial first 4 hours to about 90.5% after 96 hour experiment for plant P1 wastewater. While results from wastewater plant P2 indicated reduction rate of 97.2%, followed by 94.09% and lastly 56.8% respectively. The result affirmed the ability of this strain to optimally utilize the optimal conditional factors to grow and reduce mercury concentration overwhelmingly within a shortest time of less than 30 hours.

Keywords: Bioremediation; Pseudomonas putida; Mercury concentration; Mercury removal; Orbital shaker

Citation: Azoddein AABM, Ahmad MM, Yunus RM, Sulaiman NMN (2016) A Bioremediation Approach to Mercury Removal in a Shake Flask Culture Using Pseudomonas putida (ATCC 49128). J Anal Bioanal Tech 7:312. Doi: 10.4172/2155-9872.1000312

Copyright: © 2016 Azoddein AABM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Review summary

  1. Jane
    Posted on Aug 04 2016 at 5:10 pm
    The authors studied the effect of varying nutrient concentration and pH level on the P. putida (ATCC 49128) growth for the removal of mercury from industrial wastewater. The topic is worthy of investigation and the article described the impact of nutrient concentration and pH to the bacterial growth which was an indication of the efficiency of mercury removal. Similar studies on real-world waste water treatment with the optimized conditions need to be carried out to compare the results to un-optimized control as evidences.