Effect of Xylanase Pretreatment on the Kraft Pulping of Poplar

Akgul M., GÜCÜŞ M. O., Uner B., Atik C.

BIORESOURCES, vol.16, no.1, pp.979-986, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 16 Issue: 1
  • Publication Date: 2021
  • Doi Number: 10.15376/biores.16.1.979-986
  • Journal Name: BIORESOURCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Agricultural & Environmental Science Database, CAB Abstracts, Chemical Abstracts Core, Compendex, Veterinary Science Database, Directory of Open Access Journals
  • Page Numbers: pp.979-986
  • Istanbul University Affiliated: Yes

Abstract

This study aimed to determine the influence of prehydrolysis of wood chips on the kraft pulping of Populus x euramericana. Optimum cooking conditions were determined by evaluating different alkali concentrations and cooking periods. Xylanase was used to hydrolyze chips before cooking. Prehydrolysis process increased the yield and viscosity of pulp. Consequently, the mechanical properties of paper changed remarkably. In contrast, the optical properties of the unbleached kraft pulp declined due to lignin content.