*2.5. Enzymatic Hydrolysis (EH)*

The EH of the never-dried fibers was performed with 300 µL cellulases (Cellic® CTec2, Novozymes A/S, Bagsværd, Denmark) and 50 µL β-glucosidases (Novozyme 188, Novozymes A/S, Bagsværd, Denmark) per gram dry material for 72 h at 45 ◦C and a dry matter content of 4%. The dry matter content was adjusted with a pH 5 phosphate citrate (McIlvaine) buffer. Afterward, the hydrolysate and the fibers were transferred into a 250 mL volumetric flask and were filled up with deionized water. The suspension was filtrated through a sintered glass frit (G4) and the undiluted filtrate was used for carbohydrate analysis.
