Immobilization of pectinase on reusable polymer support for clarification of apple juice

- Polymer bound polyethyleneimine use as recyclable matrix.
- Pectinase immobilized by adsorption and stabilized by dialdehyde crosslinking.
- Dextran aldehyde is the most efficient crosslinker.
- Immobilized pectinase used for apple juice clarification with >10 recycles.
- Polymer matrix regenerated by HCl wash and reused to immobilize fresh enzyme.