Hemicelluloses at Interfaces: Some Aspects of the Interactions - The Nanoscience and Technology of Renewable Biomaterials - page 159

D D × 10 − 6

× 10 − 6

D D

7

7

6

6

5

Ubl TMP

5

Galactoglucomannan

4

4

3

3

Bl TMP

2

2

Xylan

1

1

Pectin

0 0

0 − 20 − 40 − 60 − 80 − 100 − 120 − 140 − 160 0 − 20 − 40 − 60 − 80 − 100 − 120 − 140 − 160

D f (Hz) D f (Hz)

(a) (b)

Figure 6.1 Change in dissipation vs. change in frequency for adsorption of 100 mg l −1
hemicellulosesolutionsoncellulose. (a)Dissolvedhemicellulosesisolatedfromunbleached
TMP(UblTMP)andperoxidebleachedTMP(BlTMP)(b)purehemicelluloses.Hemicelluloses
were in10mMNaAc/HAcbuffer at pH5.6, except xylanwhichwas in1mMNaCl at pH
10. f 0 = 5MHz,n = 3, t = 200min,exceptt = 100minforpectinandBlTMP.

10 − 6 D D ×

7

Ubl TMP

6

5

Xylan

4

3

2

1

0

0 − 20 − 40 − 60 − 80 − 100 − 120 − 140 − 160

D f (Hz)

Figure 6.2 Change in dissipation vs. change in frequency for adsorption of 100 mg l −1
solutions of dissolved hemicelluloses (10 mM NaAc/HAc buffer, pH 5.6, 100 mM NaCl)
and xylan (pH10, 10mMNaCl) at high ionic strengthon cellulose. Ubl TMP = dissolved

hemicellulosesisolatedfromunbleachedTMP. f 0 = 5MHz,n = 3, t = 200.