Biodegradation of Crude Oil by an Arctic Psychrotrophic Bacterium <Emphasis Type="Italic">Pseudoalteromomas</Emphasis> sp. P29 |
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Authors: | Xuezheng Lin Baijuan Yang Jihong Shen Ning Du |
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Institution: | (1) First Institute of Oceanography, SOA, Key Lab of Marine Bioactive Substances, Qingdao, China |
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Abstract: | A psychrotrophic petroleum-degrading bacterium Pseudoalteromonas sp. P29 was isolated from marine sediment, which was collected during 2nd Chinese Arctic Scientific Expedition. The phenotypic
character and biodegradation efficiency on mixed oil or vacuum oil were tested at low temperature. The strain Pseudoalteromonas sp. P29 grew in a range of temperature from 5 to 35°C and the optimum temperature was 25°C. Gas chromatography analysis indicated
that the strain might preferentially metabolize shorter-chain alkanes. The biodegradation efficiency were nearly 90 and 80%,
respectively, after incubation at 5°C for 28 days in the mineral medium supplement with mixed oil or vacuum oil as the sole
carbon and energy source. The results showed a possible exploitation of the strain in future biotechnological processes especially
in cold contaminated environments. |
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