کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4563463 | 1628523 | 2016 | 8 صفحه PDF | دانلود رایگان |
• Starch nanoparticles with controllable particle sizes were prepared.
• All nanoparticles displayed a typical V-type crystallinity.
• The nanoparticles had a high relative crystallinity (43.2–49.5%).
• The nanoparticles exhibited a high melting temperature.
Starch nanoparticles (SNPs) with controllable particle sizes were prepared by nanoprecipitation using short linear chains from debranched waxy corn starch. The morphology, size distribution, degree of polymerization, crystal structure, and thermal properties of SNPs prepared with different volume ratio of starch solution to absolute ethanol were investigated by transmission electron microscopy, dynamic light scattering, high-performance size-exclusion chromatography, X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, and Fourier transform infrared spectroscopy analysis. When the volume ratio of starch solution to absolute ethanol was 10/40 mL/mL, the SNPs had the smallest particle size (20–100 nm) and degree of polymerization. All SNPs displayed a typical V-type crystalline structure and had a high relative crystallinity (43.2–49.5%). Compared with native waxy corn starch, the melting temperature of SNPs was higher and the temperature range was broader.
Journal: LWT - Food Science and Technology - Volume 74, December 2016, Pages 303–310