In this study, Pickering emulsion gels were prepared by the self-gel method based on kappa carrageenan (kC). The effects of particle stabilizers and polysaccharide concentrations on the microstructure, rheological characteristics, and texture of Pickering emulsion gels stabilized by xanthan gum/lysozyme nanoparticles (XG/Ly NPs) with kC were discussed. The viscoelasticity of Pickering emulsion gels increased significantly with the increase of kC and XG/Ly NPs. The results of temperature sweep showed that the gel formation mainly depended on the kC addition. The XG/Ly NPs addition could accelerate the formation of Pickering emulsion gels and increase its melting temperature (T), which is helpful to improve the thermal stability of emulsion gels. Cryo-scanning electron microscope (Cryo-SEM) images revealed that Pickering emulsion gel has a porous network structure, and the oil droplets were well wrapped in the pores. The hardness increased significantly with the increase of XG/Ly NPs and kC. In particular, the Pickering emulsion gel hardness was up to 2.9 Newton (N) when the concentration of kC and XG/Ly NPs were 2%. The results showed that self-gelling polysaccharides, such as kC, could construct and regulate the structure and characteristics of Pickering emulsion gel. This study provides theoretical support for potential new applications of emulsion gels as functional colloids and delivery systems in the food industry.
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http://dx.doi.org/10.3390/foods11233757 | DOI Listing |
Int J Biol Macromol
January 2025
Guangdong Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan, Guangdong 528225, China; Department of Food Science, Foshan University, Foshan, Guangdong 528000, China. Electronic address:
The toughening coix seed oil (CSO) high internal phase Pickering emulsion (CSO-HIPES) and gel (CSO-HIPESG) comprised of carrageenan (CR)/super-deamidated-gluten (SDG) micro-particles (CR/SDG) were investigated via acid-heat induction. Results showed polysaccharide natural deep eutectic solvent (P-NADES) by citric acid-glucose-carrageenan ((CGCR), molar ratio at 1:1:0.035) was the crucial for the preparation of SDG (deamidation degree, 99.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China; School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China. Electronic address:
Smart antibacterial Pickering emulsion can respond to the stimulation of environmental conditions to control the release of antibacterial agents, protecting the quality and safety of food. In this study, FeO was grafted on the cellulose nanocrystal (CNC) via ultrasound-assisted in situ co-precipitation to synthesize the magnetic cellulose nanocomposite particles. When the ratio of FeCl and FeCl was 1.
View Article and Find Full Text PDFLangmuir
January 2025
Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.
Herein, we present a novel liquid crystal (LC)-based sensing platform utilizing microgel-stabilized Pickering LC droplets dispersed in water for simple and label-free detection of proteins in an aqueous environment. This could be achieved by tailoring the surface of 4-cyano-4'-pentylbiphenyl (5CB) LC droplets dispersed in aqueous medium through the interfacial adsorption of poly(-isopropylacrylamide) (PNIPAM) microgel particles, followed by the introduction of model surfactants, such as anionic sodium dodecyl sulfate and cationic dodecyltrimethylammonium bromide. These surfactant/microgel complex-coated LC droplets underwent a configurational transition from radial-to-bipolar under a polarized optical microscope, upon exposure to model proteins, namely bovine serum albumin and lysozyme.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Anhui Agricultural University, Materials and Chemistry, CHINA.
Traditional photopolymerizations generally requires an initiator for initiating the polymerization while few cases have created degradable chemical bonds. Moreover, the migration instability and cytotoxicity of photo initiators are posing issues to human health and the environment. In this work, we discovered an initiator-free photo polycondensation system (IFPPC) between polymercaptans and aldehyde monomers, producing high strength plastic materials with exchangeable and degradable dithioacetal groups.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Tianjin University of Technology, Institute for New Energy Materials and Low Carbon Technologies, 300384, Tianjin, CHINA.
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