If we want to distinguish what raw materials modified starch is made of, then from the perspective of polarizing cross, cassava is round, corn is polygonal, potato is oval, rice is mostly triangular, and wheat is polygonal in different sizes.

If it is to distinguish the denaturation mode of denatured starch, it depends on several aspects:

1. viscosity: cook first to make the viscosity. Compared with native starch, the size depends on the direction of etherification and grafting, while the size depends on the direction of oxidation and acidification.

2. According to the result of 1, the content of nitrogen should be determined for etherification, and the content of hydroxypropyl and hydroxyethyl should be determined for grafting; If oxidized, do carboxyl content.

3. According to the result of 2, if not, make the acetyl content.

From the above steps, you can basically determine what type it is.

If you still can't analyze it, make curves: Brabaender curve, infrared curve, chromatography, mass spectrometry, etc.

Finally, you can send it to my office and I'll help you analyze it.