Merck
  • Home
  • Search Results
  • Designing continuous flow reaction of xylan hydrolysis for xylooligosaccharides production in packed-bed reactors using xylanase immobilized on methacrylic polymer-based supports.

Designing continuous flow reaction of xylan hydrolysis for xylooligosaccharides production in packed-bed reactors using xylanase immobilized on methacrylic polymer-based supports.

Bioresource technology (2018-07-10)
Maria Romero-Fernández, Sonia Moreno-Perez, Alejandro H Orrego, Sandro Martins de Oliveira, Ramón I Santamaría, Margarita Díaz, Jose M Guisan, Javier Rocha-Martin
ABSTRACT

The present study focuses on the development and optimization of a packed-bed reactor (PBR) for continuous production of xylooligosaccharides (XOS) from xylan. For this purpose, three different methacrylic polymer-based supports (Relizyme R403/S, Purolite P8204F and Purolite P8215F) activated with glyoxyl groups were morphologically characterized and screened for the multipoint covalent immobilization of a xylanase. Based on its physical and mechanical properties, maximum protein loading and thermal stability, Relizyme R403/S was selected to set up a PRB for continuous production of XOS from corncob xylan. The specific productivity for XOS at 10 mL/min flow rate was 3277 gXOS genzyme-1 h-1 with a PBR. This PBR conserved >90% of its initial activity after 120 h of continuous operation.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Xylobiose, ≥90% (HPLC)