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Thermodynamic parameters of inorganic Pyrophosphatase in marshland south of Iraq | ||
| Marsh Bulletin | ||
| Article 1, Volume 3, Issue 2, 2008, Pages 95-103 PDF (0 K) | ||
| Authors | ||
| A.M.S. Al-Ansari; M.A. Abdulkareem and | ||
| Abstract | ||
| Marsh land ( south of Iraq ) is of great international interest at present time. Studying some microbial properties including enzyme activities , can be useful as indicator of soil quality of this area. General conclusion of enzyme reaction in soil can be reached from the thermodynamic parameters of the enzyme – soil system. Hence , this experiment was conducted to study thermodynamic parameters ( Q10 , Ea , ΔHa , ΔSa and ΔGa ) for inorganic pyrophosphatase enzyme in this soil as compared with their counter parts of other soils of south of Iraq ( Al-Zubair and Abul-Khasib soils ). Results indicated that Q10 and ΔGa values of marsh land did not significantly differs from other soils under study with average values of about 1.11 and 14.55 KJmol -1 , respectively. Ea values of marsh land , Al-Zubair and Abul-Khasib soil were 8.72 , 7.47 and 9.53 KJmol -1 , respectively. ΔSa values for marsh land soil (–10.49 J deg -1 mol -1 ) were lower than those of Abul-Khasib ( –7.85 J deg -1 mol -1) but higher than those of Al- Zubair (–14.55J deg -1 mol -1 ). ΔHa values were in order of Abul-Khasib ( 12.08 KJmol -1 ) > marsh land ( 11.27 KJmol -1 ) > Al-Zubair soil ( 10.02 KJmol -1 ) | ||
| Keywords | ||
| thermodynamic; parameters; Pyrophosphatase; marshland | ||
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