Method for Discrimination of Kuzu Starch by X-Ray Diffractometry and Scanning Electron Microscopy:Discrimination of Kuzu Starch I

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The adulterant starches mixed in so-called Yoshino Kuzu, which is one of the common wild vines in Japan, were studied, and a method for evaluating their mixing ratios was investigated.It was found by means of X-ray diffraction and scanning electron microscope (SEM) analyses that one of the adulterants is a sweet potato starch. The mixing ratio could be evaluated by measuring the particle sizes of starches photographically by SEM, followed by calculating the logarithm of the means of the sizes and statistical comparison.Examination of six commercial kuzu starches by this method indicated that one of them contained significantly more than 50% of kuzu starch, and three contained less than 50%; the others could not be clearly evaluated.
公益社団法人日本食品衛生学会の論文