Screening of glycoside hydrolases and ionic liquids for fibre modification

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

  • Jenni Rahikainen
  • Sasikala Anbarasan
  • Ronny Wahlström
  • Arno Parviainen
  • Alistair Wt King
  • Terhi Puranen
  • Kristiina Kruus

  • Ilkka Kilpeläinen
  • Ossi Turunen
  • Anna Suurnäkki

Organisaatiot

  • University of Helsinki
  • VTT Technical Research Centre of Finland
  • Roal Oy

Kuvaus

BACKGROUND: This study elaborates the possibility to apply combined ionic liquid (IL) and enzyme treatments for pulp fibre modification. The approach involves swelling of fibre surfaces with IL followed by enzymatic modification of the disrupted fibre surface using carbohydrate active enzymes. RESULTS: The capacity of seven cellulose-dissolving or cellulose-swelling ionic liquids to swell pulp fibres was compared. In addition, thirteen cellulases and five xylanases were screened for their IL tolerance, which determines their applicability in combined or sequential IL-enzyme treatments of fibres. Among the studied ionic liquids, 1-ethyl-3-methylimidazolium dimethylphosphate ([EMIM]DMP) and 1,3-dimethylimidazolium dimethylphosphate ([DMIM]DMP) had the strongest effect on fibre swelling. These solvents were also found to be the least inactivating for the studied enzymes. CONCLUSION: Enzyme compatibility and cellulose-dissolving capability are not two conflicting properties of an ionic liquid.

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut818-826
Sivumäärä9
JulkaisuJournal of Chemical Technology and Biotechnology
Vuosikerta93
Numero3
Varhainen verkossa julkaisun päivämäärä2017
TilaJulkaistu - maaliskuuta 2018
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 17108509