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Francisco Rodrı´guez-Fe´lix,Carmen Lizette Del-Toro-Sa´nchez,Jose´ Agustı´n Tapia-Herna´ndez 한국식품과학회 2020 Food Science and Biotechnology Vol.29 No.5
The objective of this work was propose antisolvent-dialysis as a new, easy, one-step and reproduciblemethod for obtaining white zein micro- and nanoparticlespowder. Firstly, the study by SEM of white zein powderpredicted micro- and nanoparticles with spherical morphologyand average diameters of 243.2 ± 94.5 nm fornanoparticles and 0.74 ± 0.2 lm for microparticles. UV–Vis predicted lower absorbance of 250–500 nm for whitezein powder compared to commercial yellow zein powder. FT-IR showed shifting of the main bands to the right, dueto changes in particle-shaped microstructure that acquireswhite zein powder compared to yellow zein powder. InTGA white zein powder showed a decomposition rangefrom 214 to 400 C, while yellow zein powder from 240 to400 C. Therefore, antisolvent-dialysis is new method toobtain white zein micro- and nanoparticles with potentialapplications such as polymer matrix and white naturalcoloring.