Agriculture Reference
In-Depth Information
Table 2. Regression equation coefficients for convective dried sugar beet pulp
Response
UT 1/k
1
(1/min)
UT 1/k
2
(g/g)
CT 1/k
1
(
1/min)
CT 1/
k
2
(g/g)
Effects
Intercept
b
0
2.1275
0.38410
2.9950
2.1677
1.6049
0.2176
19.0261
4.2331
Linear
b
1
-0.0011
-0.00890
0.0159
0.5031
0.0187
0.1108
-0.1583
-1.5420
b
2
0.0343
0.46468
0.0273
1.4853
-0.0208
-0.2113
-0.0008
-0.0130
Quadratic
b
11
0.0001
0.08534
-0.0001
-0.7070
-0.0001
-0.1111
0.0006
1.0306
b
22
0.0009
1.22881
-0.0002
-0.9807
0.0011
1.1578
0.0002
0.4206
Interaction
b
12
-0.0010
-1.84641
0.0001
-0.3870
-0.0004
-0.6254
0.0004
0.8477
Figure 1. Effects of rehydration temperature and convective drying temperature on rehydration initial
rate of untreated sugar beet pulp.
Changes in the rehydration initial rate of treated sugar beet pulp has trends similar to
those of untreated fibers (Figure 3). The increase in rehydration temperature leads to the rise
of rehydration initial rate (Cunningham et al. 2007), but unlike untreated fibers that increase
is more pronounced. Specifically, during the early rehydration phase it takes place in the
larger channels and voids, or on the surface layer of dietary fiber, as hydrogen peroxide
treatment disrupts the structure of the tissue slices it can be concluded that the emerging
