ammonium acetate were purchased from Sigma-Aldrich (St. Louis, Missouri).
Cellobiose, cellotriose, cellotetraose, cellopentaose, and cellohexaose
were purchased from Megazyme (Bray, Ireland). Regenerated amorphous
cellulose (RAC) was prepared from Avicel PH-101 (Sigma-Aldrich) as
described previously.29 (link) Ascorbic acid (Asc)
was purchased from VWR International (Radnor, Pennsylvania). Other
aromatic compounds used were purchased from Sigma-Aldrich or VWR International.
Other carbohydrate substrates used were purchased from Sigma-Aldrich
or Megazyme. Glucose oxidase from Aspergillus niger (AnGOX, 10 000 U g–1 powder)
was purchased from Sigma-Aldrich. All water used was produced by a
Milli-Q system (Merck Millipore, Molsheim, France), unless stated
otherwise.