Determining the effects of microwave heating on the ordered structures of rice starch by NMR

► Set up three heating models to study the effect of microwave on rice starch. ► Use 13C CP/MAS NMR to investigate the ordered and disordered structures of starch. ► The heating rate has major effect on the ordered and disordered structure of starch. ► The electromagnetic effect of microwave did not affect the starch structure contents.