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Objectives Ustilago maydis lipase A (UMLA) expressed in Pichia pastoris was compared with Candida antarctica lipase A (CALA) to study its biochemical properties such as thermostability and selectivity. Results UMLA had similar behavior to its homologue CALA regarding the effect of pH and temperature on enzymatic activity, substrate preference and selectivity. Both lipases were active on insoluble...
The reaction rate and selectivity of the enzymatic kinetic resolution of ibuprofen and 1-phenylethanol with supercritical CO2 as solvent were studied in a batch reactor from 40 °C to 160 °C. The commercial enzyme, Novozym 435, remained partly active for at least 14 h up to 140 °C at 15 MPa. The maximum reaction rate for the esterification of 1-phenylethanol and ibuprofen was at about 90 °C. The enantiomeric...
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