Improved redispersibility of cellulose nanofibrils in water using maltodextrin as a green, easily removable and non-toxic additive

Velásquez-Cock, J.; Gañán, Piedad; H., C. Gómez; Posada, P.; Castro, Cristina; Dufresne, Alain; Zuluaga, Robín

doi:10.1016/j.foodhyd.2017.12.024

Cited by 49 publications

(36 citation statements)

References 49 publications

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“…This technique does not evaluate the diameter of the nanofibril, but focuses on the hydrodynamic diameter of the particle, therefore it serves as a comparison between the samples. These results are similar to previous reports on laser diffraction of CNFs from banana rachis [37,47,48].…”

Section: Processing Of Cnfs-surfactant Emulsionssupporting

confidence: 93%

Influence of a Non-Ionic Surfactant in the Microstructure and Rheology of a Pickering Emulsion Stabilized by Cellulose Nanofibrils

et al. 2021

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Emulsion stabilization is a broad and relevant field with applications in oil, polymer and food industries. In recent years, the use of solid particles to stabilize emulsions or Pickering emulsions have been studied for their kinetic and physical properties. Nanomaterials derived from natural sources are an interesting alternative for this application. Cellulose nanofibrils (CNFs) have been widely explored as a Pickering emulsifier with potential food applications, however, in some cases the presence of surfactants is unavoidable, and the literature is devoid of an evaluation of the effect of a non-ionic food-grade surfactant, such as polysorbate 80, in the stabilization of a vegetable oil by CNFs. To better assess the possible interactions between CNFs and this surfactant emulsions containing coconut oil, an emerging and broadly used oil, were processed with and without polysorbate 80 and evaluated in their qualitative stability, morphological and physical properties. Fluorescence microscopy, dynamic light scattering and rheology were used for this assessment. Results indicate in absence of the surfactant, emulsion stability increased at higher CNFs content, creaming was observed at 0.15 and 0.3 wt.% of CNFs, while it was not evidenced when 0.7 wt.% was used. After the addition of surfactant, the droplets are covered by the surfactant, resulting in particles with a smaller diameter, entrapped in the cellulosic structure. Rheology indicates a lower network stiffness after adding polysorbate 80.

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Section: Processing Of Cnfs-surfactant Emulsionssupporting

confidence: 93%

Influence of a Non-Ionic Surfactant in the Microstructure and Rheology of a Pickering Emulsion Stabilized by Cellulose Nanofibrils

et al. 2021

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“…Using specific and time-consuming drying techniques [93,94], CNC and CNF suspensions can be concentrated up to 20 and 10 wt%, respectively [95,96]. However, the most concentrated suspensions are usually extremely viscous and thus are difficult to use in forming processes.…”

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confidence: 99%

Ice-Templated Porous Nanocellulose-Based Materials: Current Progress and Opportunities for Materials Engineering

et al. 2018

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Nanocelluloses (cellulose nanocrystals, CNCs, or cellulose nanofibrils, CNFs) are the elementary reinforcing constituents of plant cell walls. Because of their pronounced slenderness and outstanding intrinsic mechanical properties, nanocelluloses constitute promising building blocks for the design of future biobased high-performance materials such as nanocomposites, dense and transparent films, continuous filaments, and aerogels and foams. The research interest in nanocellulose-based aerogels and foams is recent but growing rapidly. These materials have great potential in many engineering fields, including construction, transportation, energy, and biomedical sectors. Among the various processing routes used to obtain these materials, ice-templating is one of the most regarded, owing to its simplicity and versatility and the wide variety of porous materials that this technique can provide. The focus of this review is to discuss the current state of the art and understanding of ice-templated porous nanocellulose-based materials. We provide a review of the main forming processes that use the principle of ice-templating to produce porous nanocellulose-based materials and discuss the effect of processing conditions and suspension formulation on the resulting microstructures of the materials.

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“…The destabilization kinetics of redispersed CNF suspensions was analyzed using TurbiSoft LAB. TSI of CNF aqueous suspension increased with time, which indicated that dispersed phase settled to the bottom of the vial because the concentration of CNF was lower than its gel point [ 8 , 34 , 35 , 36 ]. The Turbiscan ageing station spectra of the samples were shown in Figure 5 .…”

Section: Resultsmentioning

confidence: 99%

Comparison of Effects of Sodium Chloride and Potassium Chloride on Spray Drying and Redispersion of Cellulose Nanofibrils Suspension

Yang

et al. 2021

Nanomaterials

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Cellulose nanofibrils (CNFs) were exposed to the same levels of potassium chloride (KCl) and sodium chloride (NaCl) before being subjected to spray drying. The effect of NaCl and KCl on the size of atomized droplets and the hydrogen bond retardation between CNFs was investigated by characterizing product morphology, particle size distribution, dispersion stability in aqueous system, and surface chemistry. The results showed that the CNF suspensions treated with KCl could be atomized into smaller droplets during spray drying, and then CNF powder with smaller sizes could be obtained. As the agglomeration was less, and the CNF with KCl addition had good dispersion stability after redispersion compared with CNF treated by NaCl. Therefore, KCl treatment was an effective method to reduce the agglomeration of CNF during spray drying.

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Improved redispersibility of cellulose nanofibrils in water using maltodextrin as a green, easily removable and non-toxic additive

Cited by 49 publications

References 49 publications

Influence of a Non-Ionic Surfactant in the Microstructure and Rheology of a Pickering Emulsion Stabilized by Cellulose Nanofibrils

Influence of a Non-Ionic Surfactant in the Microstructure and Rheology of a Pickering Emulsion Stabilized by Cellulose Nanofibrils

Ice-Templated Porous Nanocellulose-Based Materials: Current Progress and Opportunities for Materials Engineering

Comparison of Effects of Sodium Chloride and Potassium Chloride on Spray Drying and Redispersion of Cellulose Nanofibrils Suspension

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