<Emphasis Type="Italic">Candida rugosa</Emphasis> lipase-catalyzed polyurethane degradation in aqueous medium |
| |
| Authors: | Rajeeb Gautam Amarjeet S Bassi Ernest K Yanful |
| |
| Institution: | (1) Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON, Canada, N6A 5B9;(2) Department of Civil and Environmental Engineering, The University of Western Ontario, London, ON, Canada, N6A 5B9 |
| |
| Abstract: | Candida rugosa lipase (EC 3.1.1.3) was used to degrade commercially-available solid poly(ester)urethane (Impranil) in an aqueous medium
under different temperature, pH, enzyme and substrate concentrations. A mathematical model was developed and applied to represent
the degradation kinetics of the solid polyurethane. Reaction optima were found to be pH 7 and 35°C. Diethylene glycol, a degradation
byproduct, generation rate was measured to be 0.12 mg/l min and the activation energy was calculated as 9.121 kcal/gmol K.
This information will be useful in developing bioreactors for practical applications to manage polyurethane wastes using lipase. |
| |
| Keywords: | Candida rugosa Lipase Polyurethane Biodegradation |
| 本文献已被 PubMed SpringerLink 等数据库收录！ |
|
