Lynne Wong's PhD thesis

m/m of
96%
Table 5.32. Calculated equilibrium moisture content (db) for reconstituted dry leaf and green leaf of variety R 570 aged 36 weeks at various temperatures and water activities.
30 o C 45 o C 55 o C 60 o C
Water Water adsorbed/% db Water Water adsorbed/% db Water Water adsorbed/% db Water Water adsorbed/% db
a w Experimental Predicted
a w Experimental Predicted
a w Experimental Predicted
a w Experimental Predicted
Dry leaf Green leaf Reconstituted Dry leaf Green leaf Reconstituted Dry leaf Green leaf Reconstituted Dry leaf Green leaf Reconstituted
H 2SO 4 soln fibre fines fibre fines
dry green
fibre fines fibre fines
dry green
fibre fines fibre fines
dry green
fibre fines fibre fines
dry
green leaf
leaf leaf
leaf leaf
leaf leaf
leaf
5% 0.9808
28.0 28.1 27.0 28.1
28.06 27.34 0.9812
33.2 32.6 30.0 29.5
33.00 29.88 0.9816
33.2 30.8 27.6 37.4
32.33 30.57 0.9818
64.5 31.0 58.8 41.7
52.20 53.73
2 2 0 4
1 3 4 2
1 2 3 6
6 6 3 7
27.0 27.8 26.9 27.7
27.32 27.18
28.3 31.6 29.6 33.3
29.57 30.73
26.5 25.1 29.0 36.5
26.04 31.30
54.9 26.3 57.8 51.8
44.42 56.03
2 4 4 3
5 5 2 3
9 0 5 8
7 9 3 2
Mean
27.5 27.9 26.9 27.9
27.69 27.26
30.7 32.1 29.8 31.4
31.28 30.31 29.9 27.9 28.3 37.0
29.18 30.94
59.7 28.7 58.3 46.8
48.31 54.88
2 8 7 4
8 4 3 3
6 4 2
7 3 3 0
10% 0.9746
25.5 23.3 24.3 21.9
24.75 23.60 0.9751
27.7 26.7 29.0 25.8
27.39 28.06 0.9760
25.0 27.7 31.5 23.7
26.08 29.20 0.9764
19.2 23.7 27.8 24.7
20.90 26.93
8 2 1 2
4 8 3 0
9 8 4 1
4 4 4 9
24.3 21.8 21.7 23.7
23.41 22.32
25.2 27.5 29.9 26.0
26.09 28.80
22.3 26.3 23.4 25.3
23.83 24.04
21.4 27.4 32.5 25.8
23.66 30.55
4 1 3 0
7 0 7 6
3 9 9 3
2 8 8 0
Mean
24.9 22.5 23.0 22.8
24.08 22.96
26.5 27.1 29.5 25.9
26.74 28.43
23.7 27.0 27.5 24.5
24.96 26.62
20.3 25.6 30.2 25.3
22.28 28.74
6 7 2 1
1 4 0 3
1 9 2 2
3 1 1 0
20% 0.8814
17.1 18.0 17.1 17.2
17.48 17.19 0.8839
16.9 17.4 17.5 17.0
17.11 17.37 0.8868
17.1 17.4 17.6 17.0
17.24 17.48 0.8882
13.9 15.5 16.8 16.3
14.50 16.69
2 9 6 5
1 6 3 1
3 4 9 0
1 2 5 3
16.4 16.8 17.1 16.5
16.55 16.95
15.4 16.7 17.1 16.5
15.90 16.95
16.3 16.7 17.0 16.1
16.50 16.76
14.7 14.0 15.5 17.0
14.47 15.99
0 1 4 1
3 1 1 7
8 0 3 2
4 0 6 1
Mean
16.7 17.4 17.1 16.8
17.01 17.07
16.1 17.0 17.3 16.7
16.51 17.16
16.7 17.0 17.3 16.5
16.87 17.12
14.3 14.7 16.2 16.6
14.49 16.34
6 5 5 8
7 9 2 9
6 7 6 6
3 6 1 7
30% 0.7549
13.2 12.9 12.2 12.2
13.16 12.22 0.7629
13.1 11.9 11.9 11.6
12.72 11.83 0.7684
12.5 12.4 12.4 12.0
12.50 12.35 0.7711
10.9 13.2 12.0 12.8
11.78 12.27
9 4 0 6
8 3 0 5
0 9 9 2
3 3 1 7
14.0 12.1 12.4 11.7
13.32 12.26
12.9 12.2 12.1 11.7
12.67 12.01
12.0 13.8 11.5 11.9
12.70 11.68
11.9 10.9 11.3 11.4
11.62 11.40
1 4 8 5
1 5 2 4
1 7 9 0
9 8 7 7
Mean
13.6 12.5 12.3 12.0
13.24 12.24
13.0 12.0 12.0 11.7
12.69 11.92
12.2 13.1 12.0 11.9
12.60 12.02
11.4 12.1 11.6 12.1
11.70 11.83
5 4 4 1
5 9 1 0
6 8 4 6
6 1 9 7
40% 0.5711 8.92 9.38 8.73 8.94 9.09 8.79 0.5866 8.35 11.6 8.26 8.14 9.55 8.22 0.5948 9.73 9.81 6.54 7.24 9.76 6.75 0.5989 7.43 8.39 9.16 7.26 7.78 8.59
0
8.56 10.6 8.34 8.51 9.33 8.39 8.56 8.87 8.42 8.37 8.67 8.41 8.37 10.6 8.39 8.12 9.22 8.31 4.33 8.83 7.14 9.04 5.99 7.71
5
7
Mean 8.74 10.0 8.54 8.73 9.21 8.59 8.46 10.2 8.34 8.26 9.11 8.31 9.05 10.2 7.47 7.68 9.49 7.53 5.88 8.61 8.15 8.15 6.89 8.15
2
4
4
50% 0.3574 5.97 6.44 6.05 6.52 6.14 6.19 0.3765 8.80 6.74 6.94 8.86 8.04 7.51 0.3879 5.49 5.60 5.43 5.37 5.53 5.41 0.3936 5.45 5.58 5.66 4.98 5.50 5.46
5.77 6.21 5.92 5.97 5.93 5.93 8.21 6.48 4.99 6.21 7.57 5.35 8.59 6.87 6.52 6.07 7.96 6.39 5.07 7.12 5.29 5.93 5.83 5.48
Mean 5.87 6.33 5.99 6.25 6.04 6.06 8.51 6.61 5.97 7.54 7.81 6.43 7.04 6.24 5.98 5.72 6.74 5.90 5.26 6.35 5.48 5.46 5.66 5.47
60% 0.1677 4.83 5.02 4.68 4.86 4.90 4.73 0.1834 3.70 3.87 3.64 2.66 3.76 3.35 0.1937 4.08 4.24 2.74 4.06 4.14 3.13 0.1988 3.71 3.40 3.64 3.26 3.60 3.53
4.59 4.99 4.55 4.80 4.74 4.62 3.72 2.54 3.46 3.64 3.28 3.51 3.71 3.10 3.73 3.87 3.48 3.77 3.53 3.17 3.11 3.42 3.40 3.20
Mean 4.71 5.01 4.62 4.83 4.82 4.68 3.71 3.21 3.55 3.15 3.52 3.43 3.90 3.67 3.24 3.97 3.81 3.45 3.62 3.29 3.38 3.34 3.50 3.36
232