Lynne Wong's PhD thesis

various components such as stalk fibre, pith, rind fibre, top fibre, dry leaf fibre and green
leaf fibre, and determine their Brix-free water content.
Table 2.14. Comparison of actual and calculated EM % cane as obtained
from the formula of Larrahondo et al. (1998).
Extraneous matter
actually added
5% green leaf
10%
20%
5% dry leaf
10%
20%
5% dry leaf (wetted)
10%
20%
5% dry leaf (oven-dried)
10%
20%
⎛ pol % dirty cane ⎞
t = ⎜ 1-
⎟ ×
⎝ pol % clean cane ⎠
Theoretical EM % cane (t) as calculated from
100 using experimentaldata from Tables 2.9 - 2.12
Trial I Trial II Trial III Trial IV Mean
5.3 4.5 4.1 4.6
4.6
11.9 8.7 8.3 9.2
9.5
21.4 19.8 19.2 16.2
19.2
6.6
7.3
13.6
-
-
-
-
-
-
5.1
6.7
16.2
5.1
10.0
18.7
-
-
-
6.1
12.0
19.7
5.5
10.5
19.5
4.6
9.1
17.2
-
-
-
-
-
-
-
-
-
5.9
8.7
16.5
5.3
10.3
19.1
4.6
9.1
17.2
Table 2.15. Brix-free water content of dry leaf from the four main cane
varieties cultivated in Mauritius.
Cane variety Brix-free water of dry leaf/% dry fibre Average
M 695/69 25.0 26.3 25.6
M 3035/66 28.9 28.0 28.5
R 570 28.2 29.2 28.7
M 1658/78 27.9 27.8 27.8
2.2.3 Survey of moisture content in dry trash
The cane payment system in Mauritius has been described in details by Anon. (1991).
Essentially, cane is purchased on its quality, assessed by analysing its press juice.
Therefore, if the cane is supplied with dry trash which has low moisture content below its
Brix-free water content, the press juice analysed will have inflated results, which will
certainly have an impact on the payment of cane.
A survey was carried out in 2003 in four sugar factories to determine the moisture content
in dry trash received with the cane supply. About 50 g of the dry trash were put in a
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