Table III.
Variables | Values | SQRT (R 2) | Zero order (R 2) | Time (h)i | ||
---|---|---|---|---|---|---|
T 75 | T 50 | T 25 | ||||
Cross-linking agent | Zn | 0.980 | 0.997 | 3.48 ± 0.21a | 6.37 ± 0.20a | 9.26 ± 0.27a |
Ca | 0.972j | 0.923 | 2.18 ± 0.17 | 4.27 ± 0.15 | 7.04 ± 0.08 | |
Cross-linking pH | 1.5 | 0.980 | 0.997 | 3.48 ± 0.21b | 6.37 ± 0.20b | 9.26 ± 0.27b |
6.3 | 0.989j | 0.942 | 1.62 ± 0.02 | 3.16 ± 0.02 | 5.23 ± 0.03 | |
Zinc acetate concentration (%) | 1 | 0.992j | 0.982 | 1.23 ± 0.23c | 3.30 ± 0.24c | 6.38 ± 0.18c |
2.5 | 0.986 | 0.995 | 2.82 ± 0.36 | 5.29 ± 0.34d | 7.75 ± 0.31d | |
5 | 0.980 | 0.997 | 3.48 ± 0.21 | 6.37 ± 0.20 | 9.26 ± 0.27 | |
10 | 0.976 | 0.998 | 3.46 ± 0.42 | 6.31 ± 0.47 | 9.16 ± 0.52 | |
Cross-linking time (h) | 0.25 | 0.989 | 0.990 | 1.96 ± 0.41e | 4.80 ± 0.27e | 7.64 ± 0.18e |
0.5 | 0.980 | 0.997 | 3.48 ± 0.21 | 6.37 ± 0.20 | 9.26 ± 0.27 | |
2 | 0.964 | 0.995 | 3.51 ± 0.33 | 6.52 ± 0.22 | 9.53 ± 0.36 | |
24 | 0.974 | 0.988 | 3.41 ± 0.28 | 6.41 ± 0.23 | 9.41 ± 0.19 | |
Drying | RT | 0.980 | 0.997 | 3.48 ± 0.21 | 6.37 ± 0.20 | 9.26 ± 0.27 |
37°C | 0.979 | 0.998 | 3.47 ± 0.13 | 6.33 ± 0.03 | 9.20 ± 0.18 | |
50°C | 0.975 | 0.992 | 3.53 ± 0.11 | 6.41 ± 0.19 | 9.28 ± 0.27 | |
FD | 0.913k | 0.821k | – | – | – | |
Pectin concentration (%) | 3 | 0.988 | 0.992 | 2.82 ± 0.42f | 5.70 ± 0.32 | 8.58 ± 0.22 |
4 | 0.986 | 0.987 | 3.00 ± 0.19 | 5.95 ± 0.35 | 8.90 ± 0.52 | |
5 | 0.980 | 0.997 | 3.48 ± 0.21 | 6.37 ± 0.20 | 9.26 ± 0.27 | |
6 | 0.971 | 0.998 | 3.51 ± 0.09 | 6.39 ± 0.18 | 9.27 ± 0.35 | |
Pectin-Resveratrol | 1:1 | 0.994j | 0.972 | 1.95 ± 0.27g | 3.94 ± 0.27g | 6.63 ± 0.21g |
2:1 | 0.979 | 0.996 | 2.61 ± 0.08 | 5.33 ± 0.11 | 8.05 ± 0.16 | |
3:1 | 0.980 | 0.997 | 3.48 ± 0.21 | 6.37 ± 0.20 | 9.26 ± 0.27 | |
4:1 | 0.982 | 0.994 | 4.10 ± 0.14 | 7.43 ± 0.21 | 10.76 ± 0.29 | |
Enzyme | – | 0.994j | 0.967 | 2.02 ± 0.23h | 4.20 ± 0.28h | 7.17 ± 0.31h |
a p < 0.05 between cross-linking agent Zn and Ca
b p < 0.05 between cross-linking pH 1.5 and 6.3
c p < 0.05 between zinc acetate concentration 1% with 2.5%, 5%, and 10%
d p < 0.05 between zinc acetate concentration 2.5% with 5% and 10%
e p < 0.05 between cross-linking time 0.25 h with 0.5, 2, and 24 h
f p < 0.05 between pectin concentration 3% and 6%
g p < 0.05 among pectin to resveratrol ratio 1:1, 2:1, 3:1, and 4:1
h p < 0.05 between enzyme and nonenzyme treatment
iData represents mean ± SD
jRelease data more appropriately fit with square root of time equation
kRelease data does not fit with both equations