The Density of Wheat Starch Granules: A Tracer Dilution Procedure for Determining the Density of an Immiscible Dispersed Phase

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Abstract
A new method for the determination of the hydrated density of starch granules is presented. The method is based on dilution of a high molecular weight dye. Both mechanical damage and increased temperature lower the hydrated density. Treatment with toluene‐acetone and dry heating had significant effects on the density of damaged but not on intact granules. The method should have wide application to other biological materials and solvent systems.