Cargando…

Pickering emulsions stabilized by β-CD microcrystals: Construction and interfacial assembly mechanism

β-Cyclodextrin (β-CD) can combine with oil and other guest molecules to form amphiphilic inclusion complexes (ICs), which can be adsorbed on the oil–water interface to reduce the interfacial tension and stabilize Pickering emulsions. However, the subtle change of β-CD in the process of emulsion prep...

Descripción completa

Detalles Bibliográficos
Autores principales: Kou, Xingran, Zhang, Xinping, Ke, Qinfei, Meng, Qingran
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10073450/
https://www.ncbi.nlm.nih.gov/pubmed/37032777
http://dx.doi.org/10.3389/fnut.2023.1161232
_version_ 1785019568249372672
author Kou, Xingran
Zhang, Xinping
Ke, Qinfei
Meng, Qingran
author_facet Kou, Xingran
Zhang, Xinping
Ke, Qinfei
Meng, Qingran
author_sort Kou, Xingran
collection PubMed
description β-Cyclodextrin (β-CD) can combine with oil and other guest molecules to form amphiphilic inclusion complexes (ICs), which can be adsorbed on the oil–water interface to reduce the interfacial tension and stabilize Pickering emulsions. However, the subtle change of β-CD in the process of emulsion preparation is easily ignored. In this study, β-CD and ginger oil (GO) were used to prepare the Pickering emulsion by high-speed shearing homogenization without an exogenous emulsifier. The stability of the emulsion was characterized by microscopic observation, staining analysis, and creaming index (CI). Results showed that the flocculation of the obtained Pickering emulsion was serious, and the surface of the droplets was rough with lamellar particles. In order to elucidate the formation process of the layered particles, the GO/β-CD ICs were further prepared by ball milling method, and the X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), and interfacial tension analyses found that β-CD and GO first formed amphiphilic nanoscale small particles (ICs) through the host–guest interaction, and the formed small particles were further self-assembled into lamellar micron-scale amphiphilic ICs microcrystals. These amphiphilic ICs and microcrystals aggregated at the oil–water interface and finally formed the Pickering emulsion. In this study, by exploring the formation process and evolution of GO/β-CD self-assembly, the formation process and stabilization mechanism of the β-CD-stabilized GO Pickering emulsion were clarified preliminarily, with the aim of providing a theoretical basis for the development of high-performance CD-stabilized Pickering emulsions.
format Online
Article
Text
id pubmed-10073450
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-100734502023-04-06 Pickering emulsions stabilized by β-CD microcrystals: Construction and interfacial assembly mechanism Kou, Xingran Zhang, Xinping Ke, Qinfei Meng, Qingran Front Nutr Nutrition β-Cyclodextrin (β-CD) can combine with oil and other guest molecules to form amphiphilic inclusion complexes (ICs), which can be adsorbed on the oil–water interface to reduce the interfacial tension and stabilize Pickering emulsions. However, the subtle change of β-CD in the process of emulsion preparation is easily ignored. In this study, β-CD and ginger oil (GO) were used to prepare the Pickering emulsion by high-speed shearing homogenization without an exogenous emulsifier. The stability of the emulsion was characterized by microscopic observation, staining analysis, and creaming index (CI). Results showed that the flocculation of the obtained Pickering emulsion was serious, and the surface of the droplets was rough with lamellar particles. In order to elucidate the formation process of the layered particles, the GO/β-CD ICs were further prepared by ball milling method, and the X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), and interfacial tension analyses found that β-CD and GO first formed amphiphilic nanoscale small particles (ICs) through the host–guest interaction, and the formed small particles were further self-assembled into lamellar micron-scale amphiphilic ICs microcrystals. These amphiphilic ICs and microcrystals aggregated at the oil–water interface and finally formed the Pickering emulsion. In this study, by exploring the formation process and evolution of GO/β-CD self-assembly, the formation process and stabilization mechanism of the β-CD-stabilized GO Pickering emulsion were clarified preliminarily, with the aim of providing a theoretical basis for the development of high-performance CD-stabilized Pickering emulsions. Frontiers Media S.A. 2023-03-22 /pmc/articles/PMC10073450/ /pubmed/37032777 http://dx.doi.org/10.3389/fnut.2023.1161232 Text en Copyright © 2023 Kou, Zhang, Ke and Meng. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Nutrition
Kou, Xingran
Zhang, Xinping
Ke, Qinfei
Meng, Qingran
Pickering emulsions stabilized by β-CD microcrystals: Construction and interfacial assembly mechanism
title Pickering emulsions stabilized by β-CD microcrystals: Construction and interfacial assembly mechanism
title_full Pickering emulsions stabilized by β-CD microcrystals: Construction and interfacial assembly mechanism
title_fullStr Pickering emulsions stabilized by β-CD microcrystals: Construction and interfacial assembly mechanism
title_full_unstemmed Pickering emulsions stabilized by β-CD microcrystals: Construction and interfacial assembly mechanism
title_short Pickering emulsions stabilized by β-CD microcrystals: Construction and interfacial assembly mechanism
title_sort pickering emulsions stabilized by β-cd microcrystals: construction and interfacial assembly mechanism
topic Nutrition
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10073450/
https://www.ncbi.nlm.nih.gov/pubmed/37032777
http://dx.doi.org/10.3389/fnut.2023.1161232
work_keys_str_mv AT kouxingran pickeringemulsionsstabilizedbybcdmicrocrystalsconstructionandinterfacialassemblymechanism
AT zhangxinping pickeringemulsionsstabilizedbybcdmicrocrystalsconstructionandinterfacialassemblymechanism
AT keqinfei pickeringemulsionsstabilizedbybcdmicrocrystalsconstructionandinterfacialassemblymechanism
AT mengqingran pickeringemulsionsstabilizedbybcdmicrocrystalsconstructionandinterfacialassemblymechanism