| Blanching methods |
Time (sec) |
b* |
a* |
L* |
C* |
H* |
BI |
A 420 nm |
| Microwave |
Fresh |
62.4 |
25.8 |
48.6 |
67.5 |
67.51 |
726.8 |
0.132 |
| Blanching |
10 |
36.6 |
2.55 |
35.6 |
36.7 |
86.01 |
413.8 |
0.11 |
| 20 |
38.3 |
4.46 |
37.2 |
38.5 |
83.36 |
420.5 |
0.112 |
| 30 |
35.4 |
1.79 |
35.2 |
35.4 |
87.1 |
391.9 |
0.116 |
| 40 |
34.4 |
2.24 |
34 |
34.4 |
86.27 |
398.6 |
0.122 |
| 50 |
34.1 |
2.33 |
34.7 |
34.2 |
86.09 |
375.5 |
0.122 |
| 60 |
36.1 |
-0.44 |
30 |
36.1 |
89.3 |
592.4 |
0.116 |
| Steam blanching |
Fresh |
62.4 |
25.8 |
48.6 |
67.5 |
67.51 |
726.8 |
0.132 |
| 60 |
34.5 |
1.52 |
33.7 |
34.6 |
87.48 |
407.8 |
0.113 |
| 120 |
21.8 |
-1.7 |
27.5 |
21.9 |
85.55 |
234.3 |
0.111 |
| 300 |
19.3 |
-2.39 |
26.2 |
19.4 |
82.92 |
200.5 |
0.114 |
| Water blanching |
Fresh |
62.4 |
25.8 |
48.6 |
67.5 |
67.51 |
726.8 |
0.132 |
| 60 |
60.6 |
21.6 |
49.6 |
64.4 |
70.39 |
645.3 |
0.11 |
| 120 |
59.6 |
21.4 |
49.2 |
63.3 |
70.22 |
632.1 |
0.112 |
| 300 |
60.5 |
23.2 |
49.4 |
64.8 |
69.04 |
649.6 |
0.116 |
|
