Kafirin nanoparticles-stabilized Pickering emulsions: Microstructure and rheological behavior

Xiao, Jie; Wang, Xiang'an; Gonzalez, Alejandro J. Perez; Huang, Qingrong

doi:10.1016/j.foodhyd.2015.09.008

Cited by 318 publications

(135 citation statements)

References 35 publications

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“…In addition, the formulations have shown an increase in viscosity as the oil volume fraction increased. These results are in agreement with previous reports on the rheological properties of Pickering emulsions Li et al, 2018;Xiao, Wang et al, 2016).…”

Section: Rheology Of Pickering Emulsionssupporting

confidence: 94%

“…These results indicate that the emulsification efficiency of the produced Pickering emulsions is directly linked to the ability of CH/GA nanoparticles to cover the oil droplets at the interface. Similar observations were noticed with chitosan (Mwangi et al, 2016) and kafirin (Xiao, Wang et al, 2016) nanoparticles-stabilized Pickering emulsions.…”

Section: Effect Of Nanoparticles Concentration On Morphology and Stabsupporting

confidence: 87%

“…It can be also inferred that the apparent viscosity of the emulsions increased as the nanoparticles concentration increases, indicating the formation of a stronger structural network. This behavior was described in studies using other Pickering stabilizers, such as kafirin (Xiao, Wang et al, 2016), ovotransferrin/gum Arabic (Wei & Huang, 2019), and octylgrafted alginate amide gel particles (Yang et al, 2017). This can be attributed to the fact that increasing the concentration of Pickering Fig.…”

Section: Rheology Of Pickering Emulsionsmentioning

confidence: 62%

“…However, at present, the development of organic and biopolymeric particles as Pickering stabilizers has become an important field of research; in order to achieve both biodegradability and biocompatibility with the aim of utilizing them in food, cosmetic and pharmaceutical applications (Lam et al, 2014;Laredj-Bourezg, Bolzinger, Pelletier, & Chevalier, 2017;Marto et al, 2019). Nevertheless, production of stable Pickering emulsions based on biopolymers is relatively challenging; since polysaccharides and some proteins are naturally very hydrophilic hindering the achievement of an intermediate particle wettability and a suitable contact angle at the oil/water interface (Xiao, Wang, Perez Gonzalez, & Huang, 2016). In this context, recent studies have successfully employed cellulose nanocrystals (Errezma, Mabrouk, Magnin, Dufresne, & Boufi, 2018), chitin nanocrystals (Perrin, Bizot, Cathala, & Capron, 2014) and chitin nanofibers (Larbi et al, 2018) Chitosan is a linear polysaccharide, obtained by the deacetylation of chitin, a natural abundant polymer present in the exoskeleton of crustaceans.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of chitosan/gum Arabic nanoparticles and their use as novel stabilizers in oil/water Pickering emulsions

Sharkawy

Barreiro

Rodrigues

2019

Carbohydrate Polymers

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A B S T R A C TRecently, there has been a renewed interest in Pickering emulsions owing to their surfactant-free nature, and the use of natural-based particles as stabilizers became a priority due to the applications they can enable. In this work, chitosan/gum Arabic (CH/GA) nanoparticles were synthesized and tested as novel stabilizers. Among the tested CH/GA weight ratios, the particles prepared using 1:1 ratio exhibited near-neutral wettability, an average size of 108.6 nm and a zeta potential of 56.3 mv. Pickering emulsions prepared from these particle dispersions (1.5% w/v), and high oil volume fractions (φ = 0.6, 0.7), have shown high storage stability. Moreover, confocal laser scanning microscopy confirmed the o/w type and the effective adsorption of the nanoparticles at the oil/ water interface forming a barrier against droplets coalescence. The emulsions have shown shear-thinning and elastic-like behavior. These findings open new avenues for using these emulsions as novel delivery systems, e.g. in cosmetic and food applications.

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Section: Rheology Of Pickering Emulsionssupporting

confidence: 94%

Section: Effect Of Nanoparticles Concentration On Morphology and Stabsupporting

confidence: 87%

Section: Rheology Of Pickering Emulsionsmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Preparation of chitosan/gum Arabic nanoparticles and their use as novel stabilizers in oil/water Pickering emulsions

Sharkawy

Barreiro

Rodrigues

2019

Carbohydrate Polymers

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“…In recent years, protein-based particles have been widely used to fabricate Pickering emulsions, such as hydrophobic zein/gliadin colloid particles (Feng & Lee, 2016;Hu et al, 2016a), kafirin NPs (Xiao et al, 2016b), as well as hydrophilic whey protein NPs (Wu et al, 2015), whey protein microgels (Destribats et al, 2014), soy protein NPs (Liu & Tang, 2013) and soy protein fibrils (Gao et al, 2017). Among those proteins, whey proteins belong to animal protein, which are widely existed in the diary food systems and consumed in our daily life.…”

Section: Introductionmentioning

confidence: 99%

Impact of whey protein isolates and concentrates on the formation of protein nanoparticles‐stabilised Pickering emulsions

Liu

Chen

et al. 2017

Int J of Food Sci Tech

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Summary Whey protein nanoparticles (NPs) were prepared by heat‐induced method. The influences of whey protein isolates (WPIs) and concentrates (WPCs) on the formation of NPs were first investigated. Then Pickering emulsions were produced by protein NPs and their properties were evaluated. After heat treatment, WPC NPs showed larger particle size, higher stability against NaCl, lower negative charge and contact angle between air and water. Dispersions of WPC NPs appeared as higher turbidity and viscosity than those of WPI NPs. The interfacial tension of WPC NPs (~7.9 mN/m at 3 wt% NPs) was greatly lower than that of WPI NPs (~12.1 mN/m at 3 wt% NPs). WPC NPs‐stabilised emulsions had smaller particle size and were more homogeneous than WPI NPs‐stabilised emulsions. WPC NPs‐stabilised emulsions had higher stability against NaCl, pH and coalescence during storage.

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Vitrification of Liquid Metal‐in‐Oil Emulsions Using Nano‐Mineral Oxides

Ryu

Lee

Hong

et al. 2023

Adv Materials Inter

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wt% Sn), are referred to as "liquid metals (LMs)" [1] because of their low melting points (near or even below room temperature). These materials have low toxicity, in contrast with well-known LM Hg, while possessing both high electrical conductivity (as "metals") and high fluidity (as "liquids"). [2] These characteristics afford high potential in a wide variety of cutting-edge technologies. [3][4][5][6][7][8][9][10] Although unmodified LMs are promising for various applications, [3,11,12] modification can extend the application scope. [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] LMs can be tailored into the form of colloidal microdroplets, [17][18][19][20][21][22][23][24][25][26][27] which enables their dispersion in another carrier liquid or in solidifiable matrices. Despite their high interfacial tension, the dispersed LM microdroplets can remain as discrete particles (without immediate coalescence) owing to the solid oxide layer that spontaneously forms on the outermost particle surface, [2] unless this layer is intentionally destroyed. [24,[28][29][30] This oxide layer, known to be mostly Ga 2 O 3 , [2,31] enables shape transformation of the LM microdroplets, [19][20][21] surface functionalization, [32][33][34][35] adhesion to substrates, [2,36,37] and templated synthesis of other particulate matter. [10] Intuitively, an oxide passivation layer with an ultrawide bandgap (≈4.8 eV) [18] may seem undesirable in applications where electrical percolation via the core metal phase of the microdroplets is important; however, the surface oxide layer may be useful in certain classes of applications where fine tuning of the dielectric properties or electrical breakdown strength of the electronic devices embedding LMs is required. [38,39] Furthermore, the electronic properties of the oxide skin, in conjunction with the core metal phase, are prospectively key factors in the photothermal conversion and photocatalytic activity of LM microdroplets, [17,18,40,41] with significant implications in human health and environmental applications such as targeted therapeutics [9,23,[42][43][44] and pollutant removal. [45] Thus, the unique tunability of the electronic properties by employing external oxide materials [17,18,[46][47][48] calls for follow-up research on various combinations of LMs and other particulate additives.LM microdroplets, when suspended as discrete particles with a solid oxide skin in a liquid medium, increase the viscosity (ɳ) of the resulting colloidal systems in a loading-dependent manner, and even induce elasticity at high loadings. [24,25,49,50] Such rheological properties of colloidal LM suspensions (or Ga and Ga-based alloys have recently received significant attention as "liquid metals (LMs)" with the combined advantages of a low toxicity, low melting point, high fluidity, and high conductivity. An important method for modifying LMs for enhanced processabilities and new applications is to tailor them into colloidal microdroplets suspended in a liquid medium. In this study, the unique vitri...

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Kafirin nanoparticles-stabilized Pickering emulsions: Microstructure and rheological behavior

Cited by 318 publications

References 35 publications

Preparation of chitosan/gum Arabic nanoparticles and their use as novel stabilizers in oil/water Pickering emulsions

Preparation of chitosan/gum Arabic nanoparticles and their use as novel stabilizers in oil/water Pickering emulsions

Impact of whey protein isolates and concentrates on the formation of protein nanoparticles‐stabilised Pickering emulsions

Vitrification of Liquid Metal‐in‐Oil Emulsions Using Nano‐Mineral Oxides

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