Green preparation and characterization of starch nanoparticles using a vacuum cold plasma process combined with ultrasonication treatment.
Ultrason Sonochem
; 58: 104660, 2019 Nov.
Article
en En
| MEDLINE
| ID: mdl-31450355
ABSTRACT
In this study, starch nanoparticles (SNPs) were fabricated via a facile and green method involving a vacuum low-temperature plasma process combined with rapid ultrasonication treatment using waxy corn starch (WCS) and potato starch (PS). Morphology, size, crystalline structure, thermal property, and stability analyses of the SNPs were systematically performed. The obtained SNPs exhibited good uniformity and almost perfect spherical and square shapes. The zeta potential and Fourier transform infrared spectroscopy results confirmed that the SNPs were covered with negative carboxyl groups (zeta potential ranging from -21.8⯱â¯1.06 to -9.78⯱â¯0.89â¯mV). The gelatinization enthalpy of SNPs from PS significantly decreased, changing from 16.63⯱â¯0.91 to 9.81⯱â¯0.19â¯J/g. However, the crystal patterns of SNPs from the WCS and PS after plasma and ultrasonic treatments did not change. The crystallinity of SNPs from PS decreased from 45.2% to 16.5%. This novel approach to preparing SNPs is low cost, simple and green. The developed SNPs could have great potential in the food, biomedical, and material industries.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Ultrason Sonochem
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
Año:
2019
Tipo del documento:
Article
País de afiliación:
China