Abstract
We report here, in detail, on the effect of carbonic anhydrase II from bovine erythrocytes, on the dissolution process of carbonate minerals of phosphate ores (Epirus area, Greece) in dilute acetic acid, by recording the pH value of the acid solution as a function of time in the pH range from 2.37 to 6.40. Two different reaction systems and two model-equations fitted perfectly the corresponding experimental data, and were used to evaluate all rate constants and parameters. Then, based on these constants and parameters we proposed the possible mechanisms of action for this enzyme from pH 2.37 – 6.40.
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Abbreviations
- CA II :
-
Carbonic anhydrase (carbonate hydro-lyase) from bovine erythrocytes EC 4.2.1.1
- D :
-
the operator \(\frac{d}{{dt}}\)
- D 2 :
-
the operator \( \frac{{d^2 }} {{dt^2 }} \)
- t :
-
the time in seconds
- p[H+]:
-
\( p[H_3^ + O]_{ob_{(time\;of\;orig)} } \)
- k c :
-
\(\frac{{{{k'}_2}({k_5} + 2{k_4})}}{{{k_4}}}\)
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Papamichael, E.M., Economou, E.D., Vaimakis, T.C. (2003). Kinetics of Dissolution of The Carbonate Minerals of Phosphate Ores by Dilute Acetic Acid Solutions in the Presence of Carbonic Anhydrase II, from Bovine Erythrocytes. In: Roussos, S., Soccol, C.R., Pandey, A., Augur, C. (eds) New Horizons in Biotechnology. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0203-4_26
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DOI: https://doi.org/10.1007/978-94-017-0203-4_26
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