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The aim of this work was to study the effect of the poly(vinyl alcohol) (PVA) concentration on the thermal and viscoelastic properties of films based on blends of gelatin and PVA using differential scanning calorimetry (DSC) and dynamic-mechanical analysis (DMA). One glass transition was observed between 43 and 49°C on the DSC curves obtained in the first scanning of the blended films, followed by...
The Langmuir model fitted well the adsorption isotherms of lipase on the hydrophobic resin. The model parameters, Qm and kd, were affected by NaCl concentration: Qm increased from 31 to 80 U g−1 resin, and kd changed from 9.4 to 3 U ml−1. Column modelling and the simulation data were compared with the experimental data with good agreement. The highest achieved column efficiency was 71%.
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