A comparison of two techniques (adsorption and entrapment) for the immobilization of Aspergillus niger in polyurethane foam |
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| Authors: | A Sanromán J Pintado J M Lema |
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| Institution: | (1) Department of Chemical Engineering, University of Vigo, E-36200 Vigo, Spain;(2) Institute of Marine Research (CSIC), E-36208 Vigo, Spain;(3) Department of Chemical Engineering, University of Santiago de Compostela, E-15701 Santiago de Compostela, Spain |
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| Abstract: | Summary
Aspergillus niger was immobilized by adsorption and entrapment in polyurethane foams and the efficiency of retention capacity, citric acid productivity and the operational stability of a fluidized bed reactor were then compared. The adsorption technique was superior to the entrapment technique, and it was possible to obtain bioparticles capable of keeping their activity for more than 25 days. |
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