Residual lignin in cellulose nanofibrils enhances the interfacial stabilization of Pickering emulsions

Guo, Shasha; Li, Xia; Kuang, Yishan; Liao, Jinhui; Liu, Kai; Li, Jun; Mo, Lihuan; He, Shuaiming; Zhu, Wenshuai; Song, Junlong; Song, Tao; Rojas, Orlando J.

doi:10.1016/j.carbpol.2020.117223

Cited by 56 publications

(33 citation statements)

References 51 publications

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“…Moreover, the emulsion ratio increased as the concentration of RLCs was increased from 0.1 to 0.5%. Our results coincide with the previous reports where increasing concentrations of CNWs [ 11 ], LCNFs [ 36 ], and 0.5% CNFs [ 4 ] enhanced the emulsification ratio.…”

Section: Resultssupporting

confidence: 93%

“…It is evident in the micrographs that phosphoric acid treatment changed the morphology of raw sisal fibers and the resultant fibers were in nanoscale diameter. Moreover, the nanofibers were more entangled and contained nanometric globular particles attached to the surface, as seen by the yellow dotted line in Figure 3 e. These adhered globules were attributed to lignin residues, and this is the typical morphological feature of lignocellulosic nanofibers reported previously by Guo et al [ 36 ].…”

Section: Resultssupporting

confidence: 57%

“…It is evident that the most stable emulsification was obtained in 0.5% RLCs mixed with hexane with an O/W ratio of 1:9 ( Figure 6 a). The integration of RLCs obtained through solubilization and regeneration in biphasic (O/W) systems caused the formation of stable emulsion because of the development of an interfacial barrier by adsorption at the oil–water interface [ 26 , 36 ]. Moreover, the emulsion ratio increased as the concentration of RLCs was increased from 0.1 to 0.5%.…”

Section: Resultsmentioning

confidence: 99%

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Lignocellulose Extraction from Sisal Fiber and Its Use in Green Emulsions: A Novel Method

et al. 2022

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Regenerated lignocellulose nanofibrils (RLCNFs) have recently piqued the interest of researchers due to their widespread availability and ease of extraction. After dewaxing, we treated sisal fiber with alkali, followed by heating and agitation, to obtain RLCNFs, which were then vacuum oven-dried. We used a variety of characterization techniques, including XRD, SEM, and FT-IR, to assess the effects of the alkali treatment on the sisal fiber. Various characterizations demonstrate that lignocellulose fibrils have been successfully regenerated and contaminants have been removed. In addition, employing the RLCNFs as a stabilizer, stable Pickering emulsions were created. The effects of RLCNF concentration in the aqueous phase and water-to-oil volume ratio on stability were studied. The RLCNFs that have been produced show promise as a stabilizer in Pickering emulsions.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 57%

Section: Resultsmentioning

confidence: 99%

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Lignocellulose Extraction from Sisal Fiber and Its Use in Green Emulsions: A Novel Method

et al. 2022

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“…In another study, the residual lignin in lignocellulosic nanofibrils (LCNF) improved its hydrophobicity and emulsion performance by producing smaller droplets, which were more resistant to creaming. The higher mass fraction of lignin in LCNF made the nanofibrils adsorb at the oil/water interface more effectively and thus stabilizing the emulsions more greatly [269] …”

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%

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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Nanocelluloses review: Preparation, biological properties, safety, and applications in the food field

Wang

et al. 2023

Food Frontiers

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Functional diet and food safety requirements, as well as reducing the consumption of nonrenewable resources and environmental pollution are the important development themes on food processing. The development and application of edible nanocelluloses (NCs) is an urgent need in the current food field. NCs are divided into three types, including cellulose nanofibrils, and cellulose nanocrystals from natural fibers, as well as bacterial cellulose synthesized by bacteria. In this review, recent developments in surface modification, biological properties, safety issues, and their applications in the food industry were highlighted. NCs have application limits due to native hydrophilicity, surface modification strengthens their hydrophobicity and stability in the oil phase. NCs exhibit excellent physicochemical properties and successfully be used as edible coatings, emulsion stabilizers, and functional food ingredients. In particular, NCs and modified NCs can be used as low‐calorie fat substitutes and prebiotics for improving gut microbiota. However, the biological properties and safety assessments still require more attention, as well as establishing the regulations for food applications.

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Residual lignin in cellulose nanofibrils enhances the interfacial stabilization of Pickering emulsions

Cited by 56 publications

References 51 publications

Lignocellulose Extraction from Sisal Fiber and Its Use in Green Emulsions: A Novel Method

Lignocellulose Extraction from Sisal Fiber and Its Use in Green Emulsions: A Novel Method

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

Nanocelluloses review: Preparation, biological properties, safety, and applications in the food field

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