International Sugar Journal

Reasons for the unusually low molasses purities in Louisiana sugarcane factories during the 2018 processing season [Full subscriber]

Abstract Target purity difference (TPD) of final molasses, calculated by subtracting a target purity from the true sucrose purity determined by high performance liquid chromatography, is used by Louisiana (LA) factories to determine how well they are recovering sugar from their massecuites. Generally, a lower TPD indicates greater recovery of sugar. During the 2018 processing season, ten of the eleven Louisiana factories experienced markedly lower TPD values than previous seasons as well as unusually low purities in final molasses, which could not be explained by conventional analyses.  Further in-depth analyses of select 2018 molasses at one LA factory were conducted…

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