Stabilization of Pickering emulsions with cellulose nanofibers derived from oil palm fruit bunch

Li, Xia; Li, Jun; Kuang, Yishan; Guo, Shasha; Mo, Lihuan

doi:10.1007/s10570-019-02803-4

Cited by 47 publications

(27 citation statements)

References 45 publications

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“…In addition to CNCs, physically or chemically treated CNF particles are reported as Pickering stabilizers in many studies [201–205] . CNFs can form entangled networks due to their longer fibers, which form a shield around the oil droplets, preventing them from coalescence, while the shorter length and aspect ratio of CNF was shown to be more effective in preventing the coalescence phenomenon [201] .…”

Section: Strategies For Emulsion Stabilizationmentioning

confidence: 99%

“…Imaging techniques such as SEM, transmission electron microscopy (TEM), and confocal laser microscopy are also known as reliable and informative methods for investigating the adsorption of particles at the oil interfaces. SEM imaging has been reported in several studies to exhibit the steric hindrance or viscoelastic network formation among oil droplets that prevented the droplets from coalescing [204,269,274] . Using fluorescence microscopy, the Pickering mechanism was identified for granular GOSA starches, which were accumulated on the surfaces of oil droplets [133] .…”

Section: Stabilization Assessment and Mechanismsmentioning

confidence: 99%

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Recent Developments in the Formulation and Use of Polymers and Particles of Plant‐based Origin for Emulsion Stabilizations

Ghavidel

Fatehi

2021

ChemSusChem

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The main scope of this Review was the recent progress in the use of plant‐based polymers and particles for the stabilization of Pickering and non‐Pickering emulsion systems. Due to their availability and promising performance, it was discussed how the source, modification, and formulation of cellulose, starch, protein, and lignin‐based polymers and particles would impact their emulsion stabilization. Special attention was given toward the material synthesis in two forms of polymeric surfactants and particles and the corresponding formulated emulsions. Also, the effects of particle size, degree of aggregation, wettability, degree of substitution, and electrical charge in stabilizing oil/water systems and micro‐ and macro‐structures of oil droplets were discussed. The wide range of applications using such plant‐based stabilizers in different technologies as well as their challenge and future perspectives were described.

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Section: Strategies For Emulsion Stabilizationmentioning

confidence: 99%

Section: Stabilization Assessment and Mechanismsmentioning

confidence: 99%

Recent Developments in the Formulation and Use of Polymers and Particles of Plant‐based Origin for Emulsion Stabilizations

Ghavidel

Fatehi

2021

ChemSusChem

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“…Moreover, ζ-potential absolute value was higher for unmodified CNCs than modified CNCs (51.8 mV vs. 39.1 mV), which favored repulsion between droplets and avoided coalescence. Studies using carboxylated CNCs to stabilize PEs showed that a high ζ-potential improved repulsive forces between droplets and increased PEs stability, whereas low ζ-potential caused droplets flocculation or coalescence [ 26 , 40 , 48 , 51 ]. On the contrary, excess of charge density and high ζ-potential on CNCs surface had negative impact on PEs stability, due to repulsion between CNCs charges, causing insufficient density of CNCs at oil-water interface, and leading to coalescence and phase separation [ 52 , 53 ].…”

Section: Eco-friendly Pickering Emulsionsmentioning

confidence: 99%

“…Even if nanocellulose could be produced by green processes, prior alkali treatment and bleaching are generally required, to eliminate lignins, hemicelluloses and pectins, and purify cellulose. Raw materials have been often treated with sodium hydroxide [ 22 , 43 , 46 , 48 , 50 ], but potassium hydroxide [ 45 ], or sodium carbonate coupled with active oxygen [ 56 ] might be also used. Bleaching has been frequently carried out with sodium chlorite and/or sodium hypochlorite [ 22 , 46 , 50 , 68 ], but these treatments caused toxic products release.…”

Section: Eco-friendly Pickering Emulsionsmentioning

confidence: 99%

Interest of Pickering Emulsions for Sustainable Micro/Nanocellulose in Food and Cosmetic Applications

Perrin

Gillet²,

Gressin³

et al. 2020

Polymers

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In the present review, natural and non-toxic particles made of micro/nanocellulose were specifically targeted as stabilizers of emulsions located at dispersed and continuous phases interfaces (called Pickering Emulsions, PEs). PEs are biphasic systems stabilized by solid particles with a recent interest in food and cosmetic domains. PEs have been more and more studied in the last ten years due to their advantages compared to conventional emulsions with surfactants. PEs have already been stabilized with various types of particles and particularly cellulose. Even if some studies showed that PEs were more stable when cellulose was chemically modified, numerous other recent studies showed that unmodified micro/nanocellulose is also promising biomaterial to stabilize PEs. Micro/nanocelluloses can be extracted by various green processes from numerous agricultural wastes and co-products, as banana peels, corncob, ginkgo seed shells, lime residues, mangosteen rind, oil palm empty fruit bunches, pistachio shells, as well as wheat straw. Main green processes used to treat cellulose are grinding, high pressure homogenization, microfluidization, enzymatic hydrolysis, subcritical water, extrusion, electron beam irradiation, cryocrushing, microwaves or sonication. PEs formulated with cellulose clearly participate to a global sustainable development but, additional studies will be necessary to better understand PEs stability and improve properties.

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“…Nanocrystals of smaller size are more convenient because a more dense organization on the polymer surface is created, while longer CNC formed an interconnected network [ 149 ]. Larger cellulose nanofibers resulted to larger structures with less surface coverage, connected by a strong interparticle network [ 150 , 151 ]. A better overview of the size range and of the structures of the resulting particles is shown in Figure 5 .…”

Section: Microcapsules Based On Polysaccharide Nanomaterialsmentioning

confidence: 99%

Engineered Multilayer Microcapsules Based on Polysaccharides Nanomaterials

Lombardo

Villares

2020

Molecules

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The preparation of microcapsules composed by natural materials have received great attention, as they represent promising systems for the fabrication of micro-containers for controlled loading and release of active compounds, and for other applications. Using polysaccharides as the main materials is receiving increasing interest, as they constitute the main components of the plant cell wall, which represent an ideal platform to mimic for creating biocompatible systems with specific responsive properties. Several researchers have recently described methods for the preparation of microcapsules with various sizes and properties using cell wall polysaccharide nanomaterials. Researchers have focused mostly in using cellulose nanomaterials as structural components in a bio-mimetic approach, as cellulose constitutes the main structural component of the plant cell wall. In this review, we describe the microcapsules systems presented in the literature, focusing on the works where polysaccharide nanomaterials were used as the main structural components. We present the methods and the principles behind the preparation of these systems, and the interactions involved in stabilizing the structures. We show the specific and stimuli-responsive properties of the reported microcapsules, and we describe how these characteristics can be exploited for specific applications.

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Stabilization of Pickering emulsions with cellulose nanofibers derived from oil palm fruit bunch

Cited by 47 publications

References 45 publications

Recent Developments in the Formulation and Use of Polymers and Particles of Plant‐based Origin for Emulsion Stabilizations

Recent Developments in the Formulation and Use of Polymers and Particles of Plant‐based Origin for Emulsion Stabilizations

Interest of Pickering Emulsions for Sustainable Micro/Nanocellulose in Food and Cosmetic Applications

Engineered Multilayer Microcapsules Based on Polysaccharides Nanomaterials

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