Effect of spent engine oil on soil catalase and dehydrogenase activities
 
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Department of Biochemistry, Delta State University, PMB 1 Abraka, Delta State, Nigeria
2
Department of Chemistry, Delta State University, PMB 1 Abraka, Delta State, Nigeria
 
Int. Agrophys. 2008, 22(1): 1–4
 
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ABSTRACT
The effect of spent engine oil on soil pH as well as activity of selected enzymes (catalase and dehydrogenase) was studied. The results indicate that spent engine oil caused a slight change in soil pH relative to the control. There was a significant decrease (p<0.05) in catalase activity in contrast to a significant increase (p<0.05) observed in dehydrogenase activity. On the whole the data suggest that spent engine oil alters soil biochemistry.
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