International Sugar Journal

A GC-MS study of the structure of gums in South African molasses* [Full subscriber]

Sugar processing streams contain gums or polysaccharides (high molecular weight carbohydrates) that result from metabolic processes within the plant (metabolic) or due to microbial infection (microbial) during harvesting and handling. Examples include starch (metabolic), dextran (microbial), and indigenous sugarcane polysaccharide (ISP, metabolic). To understand how the different gums negatively affect processing streams and factory performance and how to limit these effects requires a detailed understanding of their molecular structure. Gas chromatography coupled to mass spectrometry together with in-house developed carbohydrate mass spectral libraries was used to determine the structures of gums isolated from final molasses (FM) samples. This structural study…

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