Preparation,characterization and emulsion behavior of wheat debranched starch-gliadin composite nanoparticles
In order to expand the application of starch in Pickering emulsion,nano precipitation method is adopted to prepare wheat debranched starch/gliadin composite nanoparticles.The results are as follows:When the mass ratio of wheat debranched starch/gliadin is 3∶1,the prepared composite nano is better with a composite efficiency of 48.6％,an average particle size of 185.6 nm and a contactangle of 52.6°.Wheat debranched starch is closely bound with gliadin,which is raw material of high-quality Pickering emulsion stabilizer.The results of particle size distribution and emulsion stability analysis shows that increasing the concentration of composite particles can improve the dis-tribution uniformity and stability of emulsion.The results of rheological properties also confirms that increasing the concentration of composite particles can help the interaction between oil droplets to promote the formation of emulsion gel network structure.The research results can provide important basis for the gelation mechanism and development of Pickering emulsion gel of wheat debranched starch/gliadin composite nanoparticles.
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