Surface Modification of Cellulose Acetate with Cutinase and ...

Subchapter 2.5
Figure 3. Progress curves for the formation of hydroxyl groups at the surface of fibres,
measured as relative increase in K/S values, and protein adsorption for the (A) CDA and
(B) CTA. All the samples (1% w/v) were treated with 50 U mL -1 of cutinase, at pH 8
and 30º C. The controls were treated under the same conditions except for the enzyme.
Samples and controls were competitively dyed at 60º C. The relative increase in K/S is
calculated as
as
144
( P0
h − Pt
)
P
( K / S − K / S
0h
enzyme
control
)
K / S
control
(%), where P is the total protein in solution.
(%) and the relative protein adsorption