Effect of pH on Rheological Properties of Microcrystalline Cellulose Dispersions

Yaginuma, Yoshihito; Kijima, Toshiki

doi:10.1080/01932690500359483

Cited by 14 publications

(8 citation statements)

References 9 publications

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“…4). Similar findings were obtained for the cacao beverage samples containing 0.1-0.5 wt% MCC/NaCMC (Yaginuma & Kijima, 2006b) and the 0.3 wt% dilute aqueous dispersion of MCC/NaCMC above pH 3 (Yaginuma & Kijima, 2006a).…”

Section: Rheological Propertiessupporting

confidence: 83%

“…MCC is a valuable food additive (E460) produced from vegetable fibre using a multistep treatment process (Trache et al, 2016). In water, MCC forms a three-dimensional (3D) network with millions of insoluble microcrystals and can produce a stable thixotropic gel (Yaginuma & Kijima, 2006a;Nsor-Atindana et al, 2017). The production of a more technologically advanced stabiliser, like colloidal MCC, involves many steps, including compression of hydrolysed cellulose with a dispersant, mainly CMC (Krawczyk et al, 2009;Tuason et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Assessing the effectiveness of colloidal microcrystalline cellulose as a suspending agent for black and white liquid dyes

Domian

Marzec

Kowalska

2020

Int J of Food Sci Tech

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This study aimed to determine the effect of the concentration (1, 5, or 8 wt%) of colloidal microcrystalline cellulose (MCCS) as suspending agent on the long-term stability and rheology of the vegetable carbon (C) and calcium carbonate (CC) suspended in water-glycerine mixture. These suspensions as ready-to-use black and white liquid dyes containing 10 wt% C or CC were assessed for particle size, Turbiscan stability index (TSI), steady shear, thixotropy and dynamic viscoelasticity. After 370 days, the black dyes showed excellent stability (TSI ≪ 0.5) at 4°C and 25°C already at 1 wt% MCCS, while the white dyes showed reasonable stability (TSI 1-3) only at 5 and 8 wt% MCCS. Dye formulations exhibited a relatively liquid-like viscoelastic behaviour, while they showed extremely shear-thinning behaviour with a network structure dependent on the concentration of the MCCS as exhibited by the increase in thixotropy and the existence of the measurable yield stress.

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Section: Rheological Propertiessupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Assessing the effectiveness of colloidal microcrystalline cellulose as a suspending agent for black and white liquid dyes

Domian

Marzec

Kowalska

2020

Int J of Food Sci Tech

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“…5 and 6 and with the "solid-like" character and types of bonds involved in the emulsion network. In fact, both bacterial and plant derived celluloses, namely MCC, are known to create three-dimensional networks [8,9,27] which present an obstacle to the introduction of the probe in the sample, thus increasing the necessary forceresulting in measurable firmness and consistency. However, MCC networks might need higher concentrations and more time to rebuild after shearing [7], explaining why less force is needed in the retrieval of the probelower cohesiveness and index of viscosity.…”

Section: Texture Assessmentmentioning

confidence: 99%

“…MCC particles can help emulsification by Pickering stabilization; the three-dimensional polymer networks increase viscosity and create a solid-like rheological behaviour. Altogether, these properties help stabilizing emulsions and dispersions [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Bacterial Cellulose-Carboxymethyl Cellulose (BC:CMC) dry formulation as stabilizer and texturizing agent for surfactant-free cosmetic formulations

Martins

Rocha

Dourado

et al. 2021

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Generic cosmetic creams (oil-in-water emulsions) were prepared using dry Bacterial Cellulose and Carboxymethyl Cellulose (BC:CMC) to study the possibility of partially or completely replacing surfactants, while ensuring a long-term stability and the required organoleptic characteristics. BC:CMC was benchmarked against two hydrocolloidal Avicel products (PC-591 and PC-611), commonly used as thickeners and stabilizing aids in cosmetics production. The emulsions were then characterized regarding storage stability, rheology, texture and microscopic features.The full replacement of 5.5 % surfactants with only 0.75 % BC:CMC consistently showed similar results to those obtained with surfactants, namely concerning viscosity and texture. Although producing emulsions with larger oil droplets, BC:CMC provided for a very effective stabilization through a Pickering effect and by structuring the continuous phase. The more effective Avicel tested (PC-591) required a higher concentration (1.5 %) to achieve similar rheological profile but was ineffective in stabilizing the oil phase in a surfactant-free formulation with the adopted protocol. By replacing surfactants, dry BC:CMC matches a strong market need since both end users and manufacturers increasingly seek natural ingredients for cosmetic formulations.

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“…The ζ potential of NMAS, MMAS, and Na-BT is measured -28.2, -26.4, and -21.3 mV, respectively as shown in the inserted image (Figure 1b). The higher ζ potential indicates the larger electrostatic repulsive force between face and face, inferring easier to form a three-dimensional network structure through edge-face attraction according to literatures 32,33 . Apparently, NMAS is the most liable to form a three-dimensional network structure and exhibit thixotropic property.…”

Section: Characterization Of Nmas Mmas and Na-btmentioning

confidence: 91%

Enhanced foam-stabilizing performance by the addition of clays: A comparison of magnesium aluminum silicate with sodium bentonite

Wang

Yang

Jiang

et al. 2020

Applied Clay Science

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High-temperature-resistant foam stabilizers are desperately demanded for high-temperature conditions, such as geothermal well. In this study, nano-magnesium aluminum silicate (NMAS) and micro-magnesium aluminum silicate (MMAS) are initially studied and compared with sodium bentonite (Na-BT) as high-temperature-resistant foam stabilizers. We find that increasing temperature could facilitate aggregation of clay dispersion, and the increase of particle size results in significant positive effect on apparent viscosity (AV), interface dilational modulus (E), foam film thickness, and eventually drainage half-life (T 0.5 ) of the foam.Simultaneously, it leads to a negative impact on the initial foam volume (V 0 ) and

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Effect of pH on Rheological Properties of Microcrystalline Cellulose Dispersions

Cited by 14 publications

References 9 publications

Assessing the effectiveness of colloidal microcrystalline cellulose as a suspending agent for black and white liquid dyes

Assessing the effectiveness of colloidal microcrystalline cellulose as a suspending agent for black and white liquid dyes

Bacterial Cellulose-Carboxymethyl Cellulose (BC:CMC) dry formulation as stabilizer and texturizing agent for surfactant-free cosmetic formulations

Enhanced foam-stabilizing performance by the addition of clays: A comparison of magnesium aluminum silicate with sodium bentonite

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