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Metal-Phenolic Network Covering on Zein Nanoparticles as a Regulator on the Oil/Water Interface.
- Source :
-
Journal of agricultural and food chemistry [J Agric Food Chem] 2020 Aug 05; Vol. 68 (31), pp. 8471-8482. Date of Electronic Publication: 2020 Jul 27. - Publication Year :
- 2020
-
Abstract
- Interfacial self-assembly has become a powerful force for regulating the amphipathy of Pickering emulsions on the oil/water interface. Herein, metal-phenolic supramolecular coatings, acting as a regulator on the oil/water interface, were fabricated on the surface of zein nanoparticles (NPs), as a consequence of which the prepared Pickering emulsions stabilized by the decorated zein NPs exhibited diverse properties, decided by different concentrations of zein, tannic acid (TA), and metal ions (Fe <superscript>3+</superscript> ). Metal-phenolic network-decorated zein NPs named ZTFe x NPs (ZTFe NPs represented zein/TA/Fe <superscript>3+</superscript> NPs, and x represented different concentrations of compounds) exhibited increasing diameters of 100-110 nm. Three-phase contact angles also showed that the strong hydrophobicity of zein NPs could be decreased as a result of the formation of metal-phenolic networks. As for corresponding Pickering emulsions, the covering of TA-Fe <superscript>3+</superscript> networks on zein NPs could enhance the stability of zein NP-based emulsion obviously, which might be due to the fact that ZTFe x NPs revealed the ability to form strong films on the oil/water interfaces. ZTFe4 was selected as an optimal concentration because of its minimum size and excellent storage stability. Besides, it was also found that the diameter of ZTFe4-based emulsion enhanced with the increase in the oil phase. The rheological measurement results showed that both G ' and G ″ increased with the increase of x and the oil phase. In general, our paper not only highlighted a straightforward method for the interfacial nanofabrication of solid particles but also provided a novel and potential strategy in Pickering emulsion applications.
Details
- Language :
- English
- ISSN :
- 1520-5118
- Volume :
- 68
- Issue :
- 31
- Database :
- MEDLINE
- Journal :
- Journal of agricultural and food chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 32663391
- Full Text :
- https://doi.org/10.1021/acs.jafc.0c02632