Horseradish peroxidase (HRP) was chemically immobilised onto alumina particles and coated by polyelectrolytes layers, using the layer-by-layer technique. The reactivity of the immobilised enzyme was studied in the oxidative functionalisation of softwood milled wood and residual kraft lignins and found higher than the free enzyme. In order to investigate the chemical modifications in the lignin structure, quantitative (31)P NMR was used. The immobilised HRP showed a higher reactivity with respect to the native enzyme yielding extensive depolymerisation of lignin.
A novel and efficient oxidative functionalization of lignin by layer-by-layer immobilised Horseradish peroxidase / Perazzini, ; R, ; Saladino, R; Guazzaroni, ; M, ; Crestini, ; C,. - In: BIOORGANIC & MEDICINAL CHEMISTRY. - ISSN 0968-0896. - 19:(2011), pp. 440-447. [10.1016/j.bmc.2010.11.009]
A novel and efficient oxidative functionalization of lignin by layer-by-layer immobilised Horseradish peroxidase
SALADINO R;
2011
Abstract
Horseradish peroxidase (HRP) was chemically immobilised onto alumina particles and coated by polyelectrolytes layers, using the layer-by-layer technique. The reactivity of the immobilised enzyme was studied in the oxidative functionalisation of softwood milled wood and residual kraft lignins and found higher than the free enzyme. In order to investigate the chemical modifications in the lignin structure, quantitative (31)P NMR was used. The immobilised HRP showed a higher reactivity with respect to the native enzyme yielding extensive depolymerisation of lignin.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
