Sugar, Defecated juices

The conclusions to be drawn from the analytical results are as with diffusion juices. The alkalinity and the lime content are of importance since definite limits have been established for them in different cases. Defecated juices should be alkaline, but if the alkalinity is too high, loss of sugar may occur during the subsequent concentration of the juice. 

Take of Defecated juice of ripe buckthorn, two parts. Sugar, one part. 

The mineral constituents of the raw cane juice persist in the final molasses. The principal difference in relative amounts of these substances in molasses arises from the use of lime in defecation which causes an increase in calcium. Egyptian cane molasses solids contained 0.66% of titanium.181 The cations are believed to complex with the sugars and to thus inhibit the crystallization of sucrose, which latter is known to form compounds with inorganic salts, such as its well known compound with sodium chloride. Decationization of cane juice with ion exchange resins greatly reduces molasses formation but sucrose inversion is a concomitant problem.182... 

Evaporation The clarified juice is now concentrated by the removal of water to the point of crystallization of sugar. Since clarified cane juice contains significant quantities of inorganic ions, including calcium (introduced by the defecation process) and sulfate, the heating surfaces of the evaporators are quick to scale and require frequent cleaning. 

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