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Kinetic characterisation of enzymatic esterification in a solvent system : adsorptive control of water with molecular sieves (CROSBI ID 88422)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Giacometti, Jasminka ; Giacometti, Fabio ; Milin, Čedomila ; Vasić-Rački, Đurđa Kinetic characterisation of enzymatic esterification in a solvent system : adsorptive control of water with molecular sieves // Journal of molecular catalysis. B, Enzymatic, 11 (2001), 4-6; 921-928. doi: 10.1016/S1381-1177(00)00159-4

Podaci o odgovornosti

Giacometti, Jasminka ; Giacometti, Fabio ; Milin, Čedomila ; Vasić-Rački, Đurđa

engleski

Kinetic characterisation of enzymatic esterification in a solvent system : adsorptive control of water with molecular sieves

The kinetics of enzymatic esterification of glycerol with oleic acid, in equimolar ratio, catalyzed by immobilized Mucor miehei lipase in a solvent system in the presence of the molecular sieves was carried out at 37oC at different Lipozym and solvent (n-hexane) concentrations and the molecular sieve contents were studied in a batch stirred-tank reactor (BSTR). The reactions were followed by the determination of reaction conversions during 45 hrs. The experimental data of enzymatic esterification of glycerol with oleic acid in a solvent system in the presence of molecular sieves showed minimal deviation from the calculated value in the irreversible second order kinetic model. On the basis of the experimental data we found an empirical correlation between concentrations of Lipozym, concentrations of solvent (n-hexane), contents of the molecular sieve and the reaction rate constant k1.

lipase-catalyzed esterification; long-chain fatty acid esters; molecular sieves; n-hexane; reaction kinetics

Rad je prezentiran na skupu 4th International Symposium on Biocatalysis, održanom od 26.09.-01.10.1999.g., Giardini Naxos, Italija ; S. Riva, S. Serv (ur.).

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Podaci o izdanju

11 (4-6)

2001.

921-928

objavljeno

1381-1177

10.1016/S1381-1177(00)00159-4

Povezanost rada

Farmacija, Prehrambena tehnologija

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