Stabilizing oil-in-water emulsion with amorphous cellulose

Jia, Xuejuan; Xu, Rongkun; Shen, Wei; Xie, Mengxia; Abid, Muhammad; Jabbar, Saqib; Wang, Peng; Zeng, Xiaoxiong; Wu, Tao

doi:10.1016/j.foodhyd.2014.05.024

Cited by 125 publications

(89 citation statements)

References 31 publications

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“…Another research group has started exploring the role of regenerated cellulose as an emulsion stabilizer, but using an aqueous phosphoric acid solution as the cellulose solvent and deionized water as a coagulant. 178,179 Cohen's group used two different methods to obtain the emulsions: (1) dispersing the oil directly in the cellulose solution and adding excess of water Fig. 8 Stress-strain curves for paper made and simultaneously plasticized on a pilot paper machine.…”

Section: Cellulose As a Dispersion Stabilizermentioning

confidence: 99%

“…Jia et al and Shen et al showed that the resulting emulsions are shear-thinning with typical gel characteristics, which contribute to the decrease of droplet mobility. 179,180 The authors concluded that emulsion stabilization by regenerated cellulose is a combination of particle adsorption (''Pickering stabilization'') and network formation in the continuous phase, provided by the non-adsorbed cellulose particles. Nanocrystalline celluloses have also been used as stabilizers of emulsions.…”

Section: Cellulose As a Dispersion Stabilizermentioning

confidence: 99%

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The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena

Lindman

Medronho

Alves

et al. 2017

Phys. Chem. Chem. Phys.

187

109

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aCellulose is the most abundant polymer and a very important renewable resource. Since cellulose cannot be shaped by melting, a major route for its use for novel materials, new chemical compounds and renewable energy must go via the solution state. Investigations during several decades have led to the identification of several solvents of notably different character. The mechanisms of dissolution in terms of intermolecular interactions have been discussed from early work but, even on fundamental aspects, conflicting and opposite views appear. In view of this, strategies for developing new solvent systems for various applications have remained obscure. There is for example a strong need for using forest products for higher value materials and for environmental and cost reasons to use water-based solvents. Several new water-based solvents have been developed recently but there is no consensus regarding the underlying mechanisms. Here we wish to address the most important mechanisms described in the literature and confront them with experimental observations. A broadened view is helpful for improving the current picture and thus cellulose derivatives and phenomena such as fiber dissolution, swelling, regeneration, plasticization and dispersion are considered. In addition to the matter of hydrogen bonding versus hydrophobic interactions, the role of ionization as well as some applications of new knowledge gained are highlighted.

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Section: Cellulose As a Dispersion Stabilizermentioning

confidence: 99%

Section: Cellulose As a Dispersion Stabilizermentioning

confidence: 99%

The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena

Lindman

Medronho

Alves

et al. 2017

Phys. Chem. Chem. Phys.

187

109

View full text Add to dashboard Cite

show abstract

“…A layer of floated oil, a concentrated layer of droplets (designated as creamed emulsions) and a clear bottom phase were usually observed and their volumes were calculated from their thickness, which were measured with a digital caliper. These volumes were used to calculate the cream fraction (volume of creamed emulsion/total volume of emulsion), the oil fraction in cream (volume of dodecane/volume of creamed emulsion) and the usage level of chitin (g/g oil) (Jia et al, 2015). All experiments were repeated in triplicate and data are represented as mean ± standard derivation.…”

Section: Visual Inspection Of Emulsion Stability and Accelerated Stabmentioning

confidence: 99%

Stabilizing oil-in-water emulsions with regenerated chitin nanofibers

et al. 2015

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“…Rein et al (2012) indicated that, in the coating state, cellulose chains form continuous layers of amorphous cellulose molecules on the surfaces of the emulsion droplets. They also showed that the conformation and the assembly state of the cellulose regenerated from solution were affected by the oil/water interface (Rein et al 2012(Rein et al , 2014Jia et al 2013Jia et al , 2015. These experimental results indicated that the presence of the oil/water interface affected the orientation of the hydrophilic and hydrophobic planes of the amorphous cellulose molecules, influencing the ordering of these molecules in the encapsulating layers (Rein and Cohen 2015).…”

Section: Introductionmentioning

confidence: 97%

Molecular dynamics simulation of cellulose-coated oil-in-water emulsions

et al. 2017

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The behaviors of cellulose chains and cellulose mini-crystal in oil-in-water emulsions were studied by molecular dynamics simulations to investigate the coating states and the structural features of cellulose in these emulsions. In oil-in-water emulsion, dispersed cellulose chains gradually assemble during the progress of the simulation, eventually surrounding the octane droplet. In case of a cellulose mini-crystal, the cellulose chain at the corner of the crystal first contacts with the octane droplet through its hydrophobic surface. The other cellulose chains along the crystal plane then gradually move toward the octane molecules. In both emulsions, the cellulose was found to interact with both water and octane surfaces with specific conformations that allow the CH groups of the glucose rings to contact with octane molecules, while the OH groups of these rings contact with water molecules to form hydrogen bonds. The cellulose chains on the octane droplet also contact with each other through lateral hydrogen bonding between chains. These interactions stabilize the emulsion formed by cellulose molecules as surfactants.

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Stabilizing oil-in-water emulsion with amorphous cellulose

Cited by 125 publications

References 31 publications

The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena

The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena

Stabilizing oil-in-water emulsions with regenerated chitin nanofibers

Molecular dynamics simulation of cellulose-coated oil-in-water emulsions

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