Repository: UIHistories Project: Board of Trustees Minutes - 1882 [PAGE 92]

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86

THE EXPERIMENTS.

1. Early Amber.—September 18. Cane, very ripe and down; juice, not clarified,—evaporated to a syrup which upon cooling weighed 11 lbs. to the gallon. It was of a light color and had a distinct sorghum taste. Stalks, stripped and topped, yielded 48 per cent, of juice, having a specific gravity of 1.066. The sugar, not crystallized. 2. Early Amber.—September 20. Juice defecated. As the juice was brought from the mill, milk of lime was added, little at a time, until a piece of red 'litmus paper would change to purple when dipped into the juice. Then a solution of tannic acid and finally gelatine was added. The juice was then boiled and well skimmed, and concentrated to syrup. The syrup was scorched and had a taste of extract of licorice. A small portion of the syrup evaporated to almost candy, was readily crystallized. 3. Early Amber.—September 21. Juice not clarified. The evaporation was continued until the syrup upon cooling weighed 11 lbs. The sugar did not crystallize. 4. Early Amber. September 22. Juice made alkaline with lime, and then neutralized with sulphate of alumina. Concentrated to a syrup that weighed when cooled between 11 and 11^ lbs.; sugar crystallized. Before expressing the juice for this experiment the rollers were moved closer together and the cane crushed so much that the bagasse as it came out fell in pieces. 51 per cent, of juice was obtained with a specific gravity of 1.068. One row of cane (0.037 acres) was taken for this experiment, producing 23 gallons juice from which was made 3.17 gallons syrup, weighing l l f lbs. per gallon. Calculating from this data, an acre of the Early Amber would yield 624.2 gallons of juice, or 86.1 gallons of syrup. 5. Orange.—September 13. Juice neutralized with milk of lime; afterwards tannin and gelatine added; evaporated to a syrup of 12 lbs. to the gallon; syrup dark. The sugar commenced crystallizing in a few days. Three weeks afterwards the sugar was separated from the syrup by a centrifugal separator. Sugar, brown. In this experiment, 360 lbs. of topped and stripped stalks were used; producing 155 lbs. of juice (43 percent.); 28 lbs. syrup (7.78 per cent, of the stalks and 18.04 per cent, of the juice); 13J lbs. sugar (3.8 per cent, of stalks, 8.87 per cent, of juice, 49.1 per cent, syrup.) One row, .0398 acres, yielded 30 lbs. juice. Calculating the yield of an acre from these data, we have 754 gallons juice, 120.6 gallons, or 1,447.2 lbs. syrup, and 710.67 lbs. sugar. 6. Orange.—September 24. Juice neutralized with lime, and a few drops of tannin added to every 10 gallons juice; then \ oz. gelatine, and afterwards a little sulphate of alumina. Juice evaporated to a syrup of 11 lbs. to the gallon; color, very light. Sugar began crystallizing after standing two days. 7. Orange.—September 27. Juice neutralized with lime, and concentrated to a syrup of 11 to 12 lbs. per gallon. Sugar readily crystallized.