International Sugar Journal

Application of permanganate to reduce microbial contamination and sugar loss in raw-sugar production in Louisiana, USA [Full subscriber]

Abstract During the 2016-2018 harvest seasons, some sugarcane factories in Louisiana applied permanganate to mill tandems and other factory locations.  Brix, purity, sugar content, microbial growth and mannitol were evaluated, as well as manganese distribution in the raw sugar process.  Sample collection included crusher juice, mixed juice, clarified juice, syrup and final molasses.  In concurrent studies, samples were collected and brought back to the laboratory for studies under controlled conditions. Both laboratory and factory samples treated with permanganate indicated a reduction in microbial contamination.  Leuconostoc contamination was reduced by 94% in laboratory tests and microbial load in factory mixed juice…

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