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Article

Physicochemical Properties and Storage Stability of Food Protein-Stabilized Nanoemulsions

College of Science, Northeast Agricultural University, Harbin 150030, Heilongjiang, China
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Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Nanomaterials 2019, 9(1), 25; https://doi.org/10.3390/nano9010025
Received: 29 November 2018 / Revised: 17 December 2018 / Accepted: 18 December 2018 / Published: 25 December 2018
This study investigated the preparation and properties of corn oil nanoemulsions stabilized by peanut protein isolate (PPI), rice bran protein isolate (RBPI), soybean protein isolate (SPI), and whey protein isolate (WPI). The mean droplet diameter of four protein-stabilized nanoemulsions prepared via ultrasound method was less than 245 nm. PPI-stabilized nanoemulsions showed better stability for 4 weeks, while the mean droplet diameter of RBPI-stabilized nanoemulsions had exceeded 1000 nm during the third week of storage. Fourier transform infrared and interfacial tension (IT) analysis showed that the higher level of disordered structure and lower IT of proteins made the stability of nanoemulsions better. Moreover, bivariate correlation analysis discovered that α-helix (p < 0.01) and β-turn (p < 0.05) of proteins were related to the mean droplet diameter of nanoemulsions, the random coil (p < 0.05) was related to the zeta potential of nanoemulsions. This study provided new idea for the relationship between the structure of protein and properties of protein-stabilized nanoemulsions. View Full-Text
Keywords: ultrasound; proteins; nanoemulsions; physicochemical properties; storage stability ultrasound; proteins; nanoemulsions; physicochemical properties; storage stability
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MDPI and ACS Style

Li, Y.; Jin, H.; Sun, X.; Sun, J.; Liu, C.; Liu, C.; Xu, J. Physicochemical Properties and Storage Stability of Food Protein-Stabilized Nanoemulsions. Nanomaterials 2019, 9, 25. https://doi.org/10.3390/nano9010025

AMA Style

Li Y, Jin H, Sun X, Sun J, Liu C, Liu C, Xu J. Physicochemical Properties and Storage Stability of Food Protein-Stabilized Nanoemulsions. Nanomaterials. 2019; 9(1):25. https://doi.org/10.3390/nano9010025

Chicago/Turabian Style

Li, Yangyang; Jin, Hua; Sun, Xiaotong; Sun, Jingying; Liu, Chang; Liu, Chunhong; Xu, Jing. 2019. "Physicochemical Properties and Storage Stability of Food Protein-Stabilized Nanoemulsions" Nanomaterials 9, no. 1: 25. https://doi.org/10.3390/nano9010025

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