ICUMSA Method GS7-36 (2024)

Total, Soluble, and Insoluble Starch in Cane Raw Sugars using Microwave-Assisted Neutralisation – Tentative

ICUMSA Method GS7-36 (2024)
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Abstract:
This Method is applicable cane raw sugar only but may be appropriate for other products (if validation of use is performed) for the determination of total, soluble and insoluble starch content. Absorbance is used to measure the total and soluble starch contents of a cane raw sugar sample solution after microwave energy and acid-based neutralisation. Insoluble starch content is the difference between total and soluble starch contents. No interlaboratory testing has yet been performed but the Method was validated using single lab method validation (SLMV). For cane raw sugar samples with a total starch content of (122.6 to 3333.0) mg/kg, the difference between two results obtained under relative standard deviation of repeatability conditions should not be greater than 2.3%. For cane raw sugar samples with a soluble starch content of (122.6 to 3333.0) mg/kg, the difference between two results obtained under relative standard deviation of repeatability conditions should not be greater than 2.0%. For cane raw sugar samples with an insoluble starch content of (122.6 to 3333.0) mg/kg, the difference between two results obtained under relative standard deviation of repeatability conditions should not be greater than 9.4%.

Online Access to ICUMSA Method GS7-36 (2024)

Access to the online Version of ICUMSA Method GS7-36 (2024) can be obtained from the Sugar Industry Website, operated by Bartens. The online access for two years costs EUR35 (+ 7 % VAT for German and EU citizens without EU VAT No.).