Lynne Wong's PhD thesis

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Table 2.16. Moisture content in sugar cane dry leaves at Belle Vue sugar factory. Date % moisture Date % moisture Date % moisture Date % moisture 9.09.03 41.7 1.10.03 15.2 17.10.03 11.5 6.11.03 8.3 9.09.03 44.1 1.10.03 10.2 17.10.03 7.2 6.11.03 8.6 9.09.03 26.0 2.10.03 22.0 18.10.03 22.4 12.11.03 13.7 9.09.03 22.4 2.10.03 22.1 18.10.03 15.6 12.11.03 10.5 10.09.03 29.1 2.10.03 11.3 20.10.03 17.5 12.11.03 8.7 10.09.03 20.0 2.10.03 18.2 20.10.03 16.0 12.11.03 10.3 10.09.03 12.3 3.10.03 24.5 20.10.03 12.7 13.11.03 9.0 10.09.03 9.5 3.10.03 19.9 20.10.03 6.6 13.11.03 18.5 11.09.03 22.8 3.10.03 12.3 21.10.03 25.8 13.11.03 14.7 11.09.03 26.8 3.10.03 19.6 21.10.03 28.9 13.11.03 11.2 11.09.03 11.5 6.10.03 21.3 21.10.03 12.5 14.11.03 12.3 11.09.03 10.3 6.10.03 19.7 21.10.03 7.4 14.11.03 11.6 12.09.03 19.7 6.10.03 18.2 22.10.03 11.9 14.11.03 9.1 12.09.03 14.1 6.10.03 10.7 22.10.03 15.9 14.11.03 9.0 12.09.03 12.2 7.10.03 14.8 22.10.03 6.7 17.11.03 19.3 12.09.03 11.7 7.10.03 15.1 22.10.03 7.3 17.11.03 16.5 13.09.03 26.6 7.10.03 19.3 23.10.03 22.8 17.11.03 23.0 13.09.03 22.3 7.10.03 20.3 23.10.03 20.1 17.11.03 24.5 15.09.03 24.0 8.10.03 28.0 23.10.03 9.4 18.11.03 11.4 15.09.03 26.7 8.10.03 30.2 23.10.03 14.1 18.11.03 12.1 15.09.03 11.5 8.10.03 14.6 27.10.03 9.4 18.11.03 10.1 15.09.03 12.5 8.10.03 9.5 27.10.03 15.5 18.11.03 11.0 16.09.03 16.9 9.10.03 15.8 27.10.03 24.6 19.11.03 16.8 16.09.03 17.7 9.10.03 15.5 27.10.03 13.5 19.11.03 15.7 22.09.03 28.5 9.10.03 15.0 28.10.03 17.2 19.11.03 12.7 22.09.03 29.8 9.10.03 23.9 28.10.03 18.1 19.11.03 6.5 22.09.03 32.7 10.10.03 16.7 28.10.03 9.8 20.11.03 13.6 22.09.03 37.8 10.10.03 13.1 28.10.03 7.7 20.11.03 23.4 23.09.03 30.1 10.10.03 24.5 29.10.03 23.1 21.11.03 11.8 23.09.03 28.7 10.10.03 9.0 29.10.03 23.9 21.11.03 15.6 23.09.03 15.4 13.10.03 17.4 29.10.03 13.0 21.11.03 13.5 23.09.03 15.2 13.10.03 23.7 29.10.03 19.3 21.11.03 12.5 23.09.03 15.9 13.10.03 12.0 30.10.03 11.7 24.11.03 33.1 23.09.03 19.8 13.10.03 20.5 30.10.03 12.7 24.11.03 34.2 26.09.03 18.1 14.10.03 15.1 30.10.03 9.6 24.11.03 29.9 26.09.03 23.9 14.10.03 19.6 30.10.03 8.1 24.11.03 16.3 26.09.03 9.4 14.10.03 11.5 31.10.03 12.6 25.11.03 16.6 26.09.03 10.8 14.10.03 10.9 31.10.03 16.9 25.11.03 15.2 29.09.03 17.3 15.10.03 14.6 3.11.03 21.8 25.11.03 11.8 29.09.03 14.8 15.10.03 14.6 3.11.03 14.5 25.11.03 14.9 29.09.03 14.4 15.10.03 9.3 3.11.03 7.9 27.11.03 5.2 29.09.03 10.8 15.10.03 11.9 3.11.03 8.2 27.11.03 6.1 30.09.03 12.0 16.10.03 22.0 5.11.03 11.6 27.11.03 12.8 30.09.03 11.5 16.10.03 18.0 5.11.03 22.4 27.11.03 6.5 30.09.03 10.3 16.10.03 6.3 5.11.03 9.1 28.11.03 12.9 30.09.03 9.5 16.10.03 10.2 5.11.03 14.8 28.11.03 13.4 1.10.03 15.1 17.10.03 19.3 6.11.03 8.5 28.11.03 7.4 1.10.03 18.9 1.10.03 16.3 6.11.03 8.1 28.11.03 8.9 Mean of 192 determinations = 16.16 Standard deviation of the mean = 7.06 67
Table 2.17. Moisture content in sugar cane dry leaves at Beau Champ sugar factory. Date % moisture Date % moisture Date % moisture Date % moisture 9.08.03 31.0 4.09.03 14.2 3.10.03 13.6 28.10.03 14.8 11.08.03 13.2 5.09.03 24.2 3.10.03 12.0 29.10.03 16.0 11.08.03 25.0 8.09.03 27.2 6.10.03 12.8 29.10.03 14.6 12.08.03 12.8 8.09.03 48.2 6.10.03 9.2 30.10.03 13.6 12.08.03 14.4 9.09.03 28.8 7.10.03 12.0 30.10.03 20.0 13.08.03 15.8 10.09.03 14.6 7.10.03 13.2 31.10.03 14.8 13.08.03 15.8 13.09.03 15.2 8.10.03 11.2 31.10.03 12.6 14.08.03 17.6 15.09.03 13.8 8.10.03 10.0 3.11.03 11.6 14.08.03 15.0 15.09.03 12.2 9.10.03 10.6 3.11.03 11.2 16.08.03 20.8 17.09.03 19.4 10.10.03 14.4 4.11.03 11.6 20.08.03 16.6 18.09.03 21.8 13.10.03 14.0 4.11.03 13.0 21.08.03 13.8 18.09.03 10.8 14.10.03 11.2 5.11.03 13.6 22.08.03 15.0 19.09.03 20.2 15.10.03 12.2 5.11.03 13.2 22.08.03 12.0 22.09.03 12.8 15.10.03 14.4 6.11.03 15.4 25.08.03 15.8 22.09.03 14.6 16.10.03 18.2 7.11.03 13.4 27.08.03 14.4 24.09.03 49.8 16.10.03 16.0 7.11.03 14.0 27.08.03 28.6 25.09.03 20.4 20.10.03 13.2 10.11.03 12.6 28.08.03 13.8 26.09.03 16.0 22.10.03 10.6 10.11.03 11.4 28.08.03 16.0 26.09.03 17.8 22.10.03 9.4 11.11.03 13.4 29.08.03 12.8 27.09.03 46.0 23.10.03 11.2 11.11.03 12.4 29.08.03 13.6 29.09.03 14.0 23.10.03 18.0 12.11.03 18.2 2.09.03 16.6 29.09.03 10.4 24.10.03 13.0 12.11.03 20.6 2.09.03 13.4 30.09.03 10.8 27.10.03 27.0 13.11.03 12.2 3.09.03 19.2 1.10.03 16.4 27.10.03 12.2 3.09.03 12.2 1.10.03 10.8 28.10.03 12.6 Mean of 98 determinations = 16.14 Standard deviation of the mean = 7.18 Table 2.18. Moisture content in sugar cane dry leaves at Mon Desert Alma sugar factory. Date % moisture Date % moisture Date % moisture Date % moisture 26.09.03 14.4 11.10.03 30.4 28.10.03 28.7 6.11.03 17.3 26.09.03 12.6 13.10.03 24.0 28.10.03 30.8 7.11.03 7.5 30.09.03 23.5 13.10.03 27.8 29.10.03 28.3 7.11.03 10.9 30.09.03 27.9 14.10.03 22.5 29.10.03 28.0 10.11.03 5.4 7.10.03 20.2 14.10.03 34.3 30.10.03 31.9 10.11.03 8.7 7.10.03 22.3 15.10.03 19.5 30.10.03 12.3 11.11.03 10.1 8.10.03 12.2 15.10.03 18.1 3.11.03 19.6 11.11.03 17.9 8.10.03 15.6 17.10.03 9.9 3.11.03 12.6 12.11.03 4.8 9.10.03 30.7 17.10.03 21.1 4.11.03 21.7 12.11.03 18.2 9.10.03 19.4 18.10.03 36.4 4.11.03 26.7 13.11.03 5.8 10.10.03 30.3 18.10.03 22.2 5.11.03 8.8 13.11.03 21.3 10.10.03 18.0 20.10.03 43.1 5.11.03 16.5 14.11.03 7.9 11.10.03 19.2 20.10.03 67.7 6.11.03 24.9 14.11.03 12.5 Mean of 52 determinations = 20.81 Standard deviation of the mean = 10.98 68
Page 1 and 2:
THE BRIX-FREE WATER CAPACITY AND SO
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dissolved and hydrated waters, and
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ACKNOWLEDGEMENTS I am particularly
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Page 1.5 THE DELETERIOUS EFFECTS OF
Page 9 and 10:
Page 2.2 THE PHENOMENON OF BRIX-FRE
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Page 3.4.3.3 Cane tops 83 3.4.4 Cha
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4.3.3 Temperature at which Brix-fre
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4.6.1 Materials 143 4.6.1.1 Samples
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CHAPTER 6. PROPERTIES OF THE SORBED
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APPENDIX 3. CALCULATIONS LEADING TO
Page 21 and 22:
LIST OF FIGURES Page Figure 1.1. Fi
Page 23 and 24:
Figure 3.1. Glucose and fructose an
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Figure 5.11. Residual plots for the
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total adsorbed water (m) and the pr
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Table 2.18. Moisture content in sug
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Page Table 4.4. Results of the dete
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Page Table 4.24. Analysis of varian
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Page Table 5.13. Table 5.14. Equili
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Table 6.3. Heat of sorption of the
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GLOSSARY OF TERMS Absorption is the
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Filterability of a raw sugar is mea
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Sorption is the generic term used w
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LIST OF MAIN SYMBOLS Symbol Descrip
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s c s Slope of Caurie I isotherm pl
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number of 255, and cane land covere
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Nouvelle Mon In Trésor ustrie and
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Figure 1.3. Cane sampling by core s
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In Mauritius, most of the sugar fac
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are: cane tops, dry and green leave
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1.4 TRENDS IN CANE QUALITY RECEIVED
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campaign was launched to encourage
Page 63 and 64: The level of extraneous matter in c
Page 65 and 66: In Australia (Cargill, 1976), cane
Page 67 and 68: The effect of soil on factory perfo
Page 69 and 70: leaves increased the level of impur
Page 71 and 72: • From 1976 to 1980, when the pro
Page 73 and 74: Clerget purity of molasses 40 Clerg
Page 75 and 76: CHAPTER 2. IMPACT OF EXTRANEOUS MAT
Page 77 and 78: Since the extrapolated purity of mo
Page 79 and 80: Figure 2.1. Jeffco cutter grinder.
Page 81 and 82: 2.1.4 Results The analytical result
Page 83 and 84: Table 2.3. Analytical results of re
Page 85 and 86: Table 2.5. Composition of dry trash
Page 87 and 88: Table 2.7. Predicted factory perfor
Page 89 and 90: Boiling house recovery 91.0 89.8 89
Page 91 and 92: 0 5 10 15 20 % EM in cane y = 0.572
Page 93 and 94: % EM in cane 0 5 10 15 20 0 -2 -4 -
Page 95 and 96: 1 y = 0.020 (% D) R 2 = 1.00 = 0.03
Page 97 and 98: % EM in cane 0 5 10 15 20 0 -2 y =
Page 99 and 100: esulting in 0.015 unit sucrose loss
Page 101 and 102: 2.2.1 Experimental procedure Cane m
Page 103 and 104: filter paper, rejecting the first f
Page 105 and 106: Table 2.9. Effect of increased addi
Page 107 and 108: Table 2.11. Effect of increased add
Page 109 and 110: Table 2.13. Effect of increased add
Page 111 and 112: various components such as stalk fi
Page 113: in the presence of dry leaves, if c
Page 117 and 118: CHAPTER 3. SEPARATION OF THE SUGAR
Page 119 and 120: Table 3.1. It can be seen that the
Page 121 and 122: Table 3.2. Fibrous physical composi
Page 123 and 124: R 579 R 570 M 1557/70 M 1400/86 74
Page 125 and 126: loosen the fibre. The woody core is
Page 127 and 128: agitate the mixture in the pot, and
Page 129 and 130: Figure 3.7. Custom-built fibre-pith
Page 131 and 132: The extraction of fibres starting f
Page 133 and 134: pre-treatment in a Jeffco cutter-gr
Page 135 and 136: Figure 3.19. Stalk cake washed free
Page 137 and 138: not have many dry leaves attached t
Page 139 and 140: Table 3.5. Masses of cane samples a
Page 141 and 142: Table 3.7. Masses of cane samples a
Page 143 and 144: Table 3.9. Masses of cane component
Page 145 and 146: 3 57.6 126.3 23.7 97.2 31.1 53.8 11
Page 147 and 148: Table 3.12. Material loss (%) from
Page 149 and 150: 3.5.3 Fibre/pith ratios in cane com
Page 151 and 152: Table 3.15. Effect of extraneous ma
Page 153 and 154: Snow (1974) investigated the season
Page 155 and 156: from Figure 2.9 that the change in
Page 157 and 158: Table 3.18. Fibre % cane results by
Page 159 and 160: 110
Page 161 and 162: (a). Dry leaf (b). Green leaf (c).
Page 163 and 164: dry fibre, or a factor, is used in
Page 165 and 166:
Steuerwald (1912) applied sucrose s
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solution/fibre ratio was lowered fr
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leave some residual moisture on the
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instead of 150 g of 10° Brix sucro
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Table 4.2. Determination of Brix-fr
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Table 4.3. Comparison of Brix-free
Page 177 and 178:
Table 4.4. Results of the determina
Page 179 and 180:
In order to test for homogeneity of
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Table 4.7. Results of the repeat de
Page 183 and 184:
The experiment was repeated with th
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e any residual moisture in the samp
Page 187 and 188:
By means of the same technique, Won
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was still hot. Since the filter was
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value determined could be corrected
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Qin and White’s finding was confi
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A sample size of 3.5 g with 75 g co
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Figure 4.4. Fibre samples drying in
Page 199 and 200:
- One large fibre sample (rind) of
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Table 4.18. Brix-free water values/
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Table 4.20. Brix-free water values/
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4.7.3 Statistical analysis It is es
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Table 4.23. Analysis of variance (B
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pointing out that at 52 weeks old,
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The crop of R 570 sampled in 2001 w
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4.7.4. Estimated Brix-free water co
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The main difference in the two sets
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Table 4.27. Predicted Brix-free wat
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4.8 SUMMARY AND CONCLUSIONS An anal
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component parts, and verify the Bri
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3) Thermodynamic, water in equilibr
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Langmuir (1916, 1917, 1918) propose
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to determine the moisture sorption
Page 229 and 230:
Table 5.1. Some commonly used isoth
Page 231 and 232:
Lomauro et al. (1985) found that wi
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and on agricultural products such a
Page 235 and 236:
Bruijn (1963) studied the mass incr
Page 237 and 238:
After measuring the EMC of dry corn
Page 239 and 240:
approached, that is, either by adso
Page 241 and 242:
Table 5.4. Water activity (a w ) of
Page 243 and 244:
5.6.3 Procedure to determine equili
Page 245 and 246:
5.6.4 Results and discussion An exa
Page 247 and 248:
Table 5.8. Equilibrium moisture con
Page 249 and 250:
Table 5.10. Equilibrium moisture co
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Table 5.12. Equilibrium moisture co
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30 o C 45 o C 55 o C 60 o C Water w
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m/m of 96% activity, a w (g/100g dr
Page 257 and 258:
vaporisation generally decreases fr
Page 259 and 260:
30 o C isotherm 45 o C isotherm 55
Page 261 and 262:
4 0 Stalk fibre 5 0 Stalk pith 5 0
Page 263 and 264:
5.6.4.4 Fitting of sorption models
Page 265 and 266:
Table 5.19. Parameters of the sorpt
Page 267 and 268:
Page 269 and 270:
Page 271 and 272:
Page 273 and 274:
Page 275 and 276:
Modified GAB Kuhn Iglesias - Chirif
Page 277 and 278:
Table 5.28. Classification of resid
Page 279 and 280:
Stalk fibre Stalk pith Rind fibre 4
Page 281 and 282:
5.6.4.5 Calculated EMC values of re
Page 283 and 284:
Table 5.30. Calculated equilibrium
Page 285 and 286:
m/m of 96% Table 5.32. Calculated e
Page 287 and 288:
Table 5.33. Parameters of the Hailw
Page 289 and 290:
CHAPTER 6. PROPERTIES OF THE SORBED
Page 291 and 292:
where m is the equilibrium moisture
Page 293 and 294:
Page 295 and 296:
Page 297 and 298:
6.2 THE NUMBER OF ADSORBED MONOLAYE
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6.3 TOTAL SOLID SURFACE AREA AVAILA
Page 301 and 302:
Thus, for each cane component of ea
Page 303 and 304:
abscissa. For each moisture level (
Page 305 and 306:
Page 307 and 308:
A similar procedure was followed to
Page 309 and 310:
10 0 Stalk fibre Stalk pith Rind fi
Page 311 and 312:
Moreover, if T β > T hm the proces
Page 313 and 314:
Table 6.5. Characteristic parameter
Page 315 and 316:
Binding energy/kJ (kg mol) -1 2 0 0
Page 317 and 318:
6.8 CALCULATION OF BOUND WATER AND
Page 319 and 320:
The values of K 1 , K 2 and W were
Page 321 and 322:
Table 6.7. Separation of the total
Page 323 and 324:
Table 6.7. (Contd.) Sample 30 o C 4
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3 0 S talk fibre 4 0 Stalk pith 3 0
Page 327 and 328:
3 0 Reconstituted cane at 30 o C 3
Page 329 and 330:
when water is added to dry wood, wh
Page 331 and 332:
It is evident that in some cases ma
Page 333 and 334:
The number of adsorbed monolayers,
Page 335 and 336:
Data in Tables 2.9 and 2.11 show th
Page 337 and 338:
particular fibre is systematically
Page 339 and 340:
Anon. (1985b). Laboratory manual fo
Page 341 and 342:
Blanchi R.H. and A.G. Keller (1952)
Page 343 and 344:
Day D.L. and G.L. Nelson (1965). De
Page 345 and 346:
Heyrovsky J. (1970). Determination
Page 347 and 348:
Kuhn I.J. (1964). A new theoretical
Page 349 and 350:
Madamba P.S., R.H. Driscoll and K.A
Page 351 and 352:
Prinsen Geerligs, H.C. (1897). Stud
Page 353 and 354:
Sing K.S.W., D.H. Everett, R.A.W. H
Page 355 and 356:
Van der Pol C., C.M. Young and K. D
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Lynne Wong's PhD thesis

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