Citation
Jamulidin, Siti Nur Khadijah and Manogaran, Motharasan and Yakasai, Mohd Hafeez and Abdul Rahman, Mohd Fadhil and Abd. Shukor, Mohd. Yunus
(2016)
Partial purification and characterization of the molybdenum-reducing enzyme from the glyphosate-degrading Burkholderia vietnamiensis strain AQ5-12.
Bioremediation Science and Technology Research, 4 (1).
pp. 7-9.
ISSN 2289-5892
Abstract
In this study, a novel glyphosate-degrading shows the ability to reduce molybdenum to molybdenum blue. The enzyme from this bacterium was partially purified and partially characterized to ascertain whether the Mo-reducing enzyme from this bacterium shows better or lower efficiency in reducing molybdenum compared to other Mo-reducing bacterium that only exhibits a single biotransformation activity. The enzyme was partially purified using ammonium sulphate fractionation. The Vmax for the electron donating substrate or NADH was at 1.905 nmole Mo blue/min while the Km was 6.146 mM. The regression coefficient was 0.98. Comparative assessment with the previously characterized Mo-reducing enzyme from various bacteria showed that the Mo-reducing enzyme from Burkholderia vietnamiensis strain AQ5-12 showed a lower enzyme activity.
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Partial purification and characterization of the molybdenum-reducing enzyme from the glyphosate-degrading Burkholderia vietnamiensis strain AQ5-12.pdf
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