Features International Sugar Journal
The Blackboard

Target purity [Registered]

Recovering the maximum amount of sucrose from molasses has been a major objective in the sugarcane industry for a long time. HC Prinsen Geerlings investigated melassigenic substances in cane molasses in 1892; Van der Linden in 1919 exhausted molasses by rotating them in bottles with sucrose crystals until equilibrium was reached. It was found that the ratio sucrose/water could be a function of the non-sucrose/ water ratio in exhausted molasses (Honig 1959). Micheli & De Gyulay in 1935 used a laboratory test to exhaust cane molasses to a lowest, comparable final purity. The samples were analysed for sucrose (S. Jackson…

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