Hydrophilic Polymers

Erothu, Harikrishna; Kumar, Anitha C.

doi:10.1002/9783527690916.ch7

Cited by 8 publications

(14 citation statements)

References 112 publications

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“…The result indicates that chemical properties of ingredients of films had an impact on water solubility. The hydrophilic nature of GR and dissociation of hydroxyl groups and hydrogen bonds between the polysaccharides of KGM and GR could be responsible for an improvement in the solubility of the films . As all formulated films are highly soluble in water, they are not water resistant and they should not be applied as edible films or coatings in foods with high water content or moisture.…”

Section: Resultsmentioning

confidence: 99%

“…The hydrophilic nature of GR and dissociation of hydroxyl groups and hydrogen bonds between the polysaccharides of KGM and GR could be responsible for an improvement in the solubility of the films. 15,16 As all formulated films are highly soluble in water, they are not water resistant and they should not be applied as edible films or coatings in foods with high water content or moisture. It is speculated that, with such good solubility, the films would be suitable to serve as a carrier for LC and / or GR.…”

Section: Resultsmentioning

confidence: 99%

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Synbiotic edible film from konjac glucomannan composed of Lactobacillus casei‐01® and Orafti®GR, and its application as coating on bread buns

et al. 2020

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BACKGROUND Konjac glucomannan‐based edible films formulated with Lactobacillus casei‐01® and chicory‐derived inulin Orafti®GR were studied for their properties, stability, and application as coatings on bread buns. RESULTS Thickness and transparency were variable and dependent on the formulations. Alterations in color properties of all supplemented films were unnoticeable by unaided human eyes, with ΔE less than 3. Lactobacillus casei‐01® and Orafti®GR were associated with higher water solubility of the films. Lactobacillus casei‐01® decreased the water vapor permeability of the films while Orafti®GR promoted it. The mechanical properties in all combinations remained unchanged, although those with Orafti®GR showed profoundly reduced tensile strength. Scanning electron micrographs and Fourier transform infrared spectra of the films confirmed good homogeneity and intermolecular attraction between the prebiotic and konjac glucomannan. Cell viability in the films stored at room temperature decreased sharply, becoming less than the minimum recommended level after day 4, while viable L. casei‐01® in coatings on bread buns gradually decreased, with a reduction of ca. 2 log colony‐forming units (CFU) portion−1 over the 7 day storage period at room temperature. CONCLUSION The synbiotic film and coating developed in this study are a relatively simple strategy for incorporating L. casei‐01® and Orafti®GR into bread buns, which are short shelf‐life foods. Bread buns with synbiotic coating could diversify functional food choices. Pretreatment, together with other technologies, is required to maintain a desirable number of active probiotic cells for longer. © 2020 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Synbiotic edible film from konjac glucomannan composed of Lactobacillus casei‐01® and Orafti®GR, and its application as coating on bread buns

et al. 2020

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“…PAA is the polymer of acrylic acid, a compound with the formula (C 3 H 4 O 2 ) n . PAA exhibits high water retention, and upon absorbing water, it expands over its original size [ 73 ]. This hydrophilic property, as well as its propensity as an emulsifying agent, makes it widely marketable.…”

Section: Hydrogels For Piv Channel Materialsmentioning

confidence: 99%

“…This hydrophilic property, as well as its propensity as an emulsifying agent, makes it widely marketable. It is commonly used in commercial products for its thickening and suspension properties, e.g., for disposable diapers, adhesives, paints, pharmaceutical drugs, and beauty products [ 73 , 74 , 75 , 76 ].…”

Section: Hydrogels For Piv Channel Materialsmentioning

confidence: 99%

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A Review on Novel Channel Materials for Particle Image Velocimetry Measurements—Usability of Hydrogels in Cardiovascular Applications

Winkler

Kuhn

Hentschel

et al. 2022

Gels

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Particle image velocimetry (PIV) is an optical and contactless measurement method for analyzing fluid blood dynamics in cardiovascular research. The main challenge to visualization investigated in the current research was matching the channel material’s index of refraction (IOR) to that of the fluid. Silicone is typically used as a channel material for these applications, so optical matching cannot be proven. This review considers hydrogel as a new PIV channel material for IOR matching. The advantages of hydrogels are their optical and mechanical properties. Hydrogels swell more than 90 vol% when hydrated in an aqueous solution and have an elastic behavior. This paper aimed to review single, double, and triple networks and nanocomposite hydrogels with suitable optical and mechanical properties to be used as PIV channel material, with a focus on cardiovascular applications. The properties are summarized in seven hydrogel groups: PAMPS, PAA, PVA, PAAm, PEG and PEO, PSA, and PNIPA. The reliability of the optical properties is related to low IORs, which allow higher light transmission. On the other hand, elastic modulus, tensile/compressive stress, and nominal tensile/compressive strain are higher for multiple-cross-linked and nanocomposite hydrogels than single mono-cross-linked gels. This review describes methods for measuring optical and mechanical properties, e.g., refractometry and mechanical testing.

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