NDLI: Changes in Microbial Populations and Enzyme Activities During the Bioremediation of Oil-Contaminated Soil

Content Provider	Springer Nature Link
Author	Lin, Xin Li, Xiaojun Sun, Tieheng Li, Peijun Zhou, Qixing Sun, Lina Hu, Xiaojun
Copyright Year	2009
Abstract	In the process of bioremediation in the soil contaminated by different oil concentrations, the changes in the microbial numbers (bacteria and fungi) and the enzyme (catalase (CAT), polyphenol oxidase (PPO) and lipase) activities were evaluated over a 2-year period. The results showed that the microbial numbers after 2-year bioremediation were one to ten times higher than those in the initial. The changes in the bacterial and the fungal populations were different during the bioremediation, and the highest microbial numbers for bacteria and fungi were 5.51 × 109 CFU g−1 dry soil in treatment 3 (10,000 mg kg−1) in the initial and 5.54 × 105 CFU g−1 dry soil in treatment 5 (50,000 mg kg−1) after the 2-year bioremediation period, respectively. The CAT and PPO activities in the contaminated soil decreased with increasing oil concentration, while the lipase activity increased. The activities of CAT and PPO improved after the bioremediation, but lipase activity was on the contrary. The CAT activity was more sensible to the oil than others, and could be alternative to monitor the bioremediation process.
Starting Page	542
Ending Page	547
Page Count	6
File Format	PDF
ISSN	00074861
Journal	Bulletin of Environmental Contamination and Toxicology
Volume Number	83
Issue Number	4
e-ISSN	14320800
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-07-26
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bioremediation Catalase Polyphenol oxidase Lipase Oil Soil Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Environmental Chemistry Soil Science & Conservation Ecotoxicology Environmental Health Pollution
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Pollution Medicine Toxicology

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