Purification and characterization of recombinant lipase from Arthrobacter sp. 3B
A recombinant lipase from Arthrobacter sp. 3B, was successfully purified and characterized. The lipase was purified using affinity chromatography with Nickel sepharose as a resin. The molecular weight of the pure protein was estimated to be 66.2 kDa by SDS-PAGE. The...
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| Main Author: | |
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| Format: | Project Paper Report |
| Language: | English |
| Published: |
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/85090/1/FBSB%202015%2079%20-%20IR.pdf http://psasir.upm.edu.my/id/eprint/85090/ |
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| Institution: | Universiti Putra Malaysia |
| Language: | English |
| Summary: | A recombinant lipase from Arthrobacter sp. 3B, was successfully purified and
characterized. The lipase was purified using affinity chromatography with Nickel sepharose
as a resin. The molecular weight of the pure protein was estimated to be 66.2 kDa by SDS-PAGE. The
enzyme exhibited maximum activity at 60ᵒC and was stable at the temperature lower than 60ᵒC.
The enzyme indicated that the optimum pH for the enzyme activity and stability was pH 7.
Lipase 3B has broad substrate specificity, which tend to hydrolyze most natural oils that contain
medium and long chain fatty acid, with the highest activity in canola oil (C18:1). Lipase activity
was enhanced in the presence of metal ions, especially K⁺, Ca²⁺, and Mg²⁺ ions in 1 mM
concentration, but it was inhibited by Ni²⁺ ion. The activity of the purified enzyme was slightly
decreased in the present of organic solvents. These properties suggest that the lipase may find
potential applications
in industrial and biotechnology applications. |
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