Table 1.
Activities of cellulases and xylanases (at 50°C and pH 5.0) of the three tested enzyme preparations.
Table 2.
The impact of the dose of enzymatic preparation and pretreatment time on the selected pulp and paper properties.
Fig 1.
Effects of enzyme treatment and PFI revolutions number on pulp freeness (a), water retention value (b) and fines content (c).
Table 3.
The effect of enzymatic pulp treatment on the number of PFI mill revolutions required to achieve the freeness of 30°SR.
Table 4.
The impact of the three enzyme preparations on refined pulp and paper parameters (for pulp freeness of 30°SR).
Fig 2.
The effect of enzyme preparations and number of PFI mill revolutions on the weighted average fiber length.
Fig 3.
Effects of enzyme treatment and PFI mill revolutions number on breaking length (a) and tear resistance (b) of paper.
Fig 4.
The dependence of tear resistance: breaking length ratio on enzymatic pulp treatment.
Fig 5.
Microscopic images (electron scanning microscope, 50 μm bar enables estimation of the fibres’ size) illustrating the effect of enzymatic pulp treatment on the appearance of fibres before and after refining.