Salt-induced thermal gelation of xyloglucan in aqueous media

Sakakibara, Caroline Novak; Sierakowski, Maria Rita; Ramirez, R. R.; Chassenieux, Christophe; Riegel‐Vidotti, Izabel C.; Freitas, Rilton Alves de

doi:10.1016/j.carbpol.2019.115083

Cited by 15 publications

(5 citation statements)

References 27 publications

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“…50°C, was also observed for the native XG by Sakakibara et al [54]. XG was described to display a conformational transition from a helical structure to a chain extended conformation upon heating, that was sensitive to the presence of the anions of the salt present in the medium [54]. dXG1-S T0 shows a morphology that can be described as the result of the structural collapse of extended hollow membranes formed by fusion of flat ribbons and fibrils, a collapse that is likely caused by the freeze-drying process.…”

Section: Influence Of the Culture Media On Network Formationsupporting

confidence: 78%

“…The formation of fibrillar structures, induced by the combined presence of kosmotropic salts and an increase of temperature up to ca. 50°C, was also observed for the native XG by Sakakibara et al [54]. XG was described to display a conformational transition from a helical structure to a chain extended conformation upon heating, that was sensitive to the presence of the anions of the salt present in the medium [54].…”

Section: Influence Of the Culture Media On Network Formationmentioning

confidence: 59%

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In-situ gelling xyloglucan formulations as 3D artificial niche for adipose stem cell spheroids

Toia

Stefano

Muscolino

et al. 2020

International Journal of Biological Macromolecules

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Section: Influence Of the Culture Media On Network Formationsupporting

confidence: 78%

Section: Influence Of the Culture Media On Network Formationmentioning

confidence: 59%

In-situ gelling xyloglucan formulations as 3D artificial niche for adipose stem cell spheroids

Toia

Stefano

Muscolino

et al. 2020

International Journal of Biological Macromolecules

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“…Table 1 shows the results of the Mw distribution of XyG obtained using different extraction methods. The Mw results were similar to those of previous studies (1.66 × 10 6 g mol −1 32 and 2.60 × 10 6 g mol −1 33 ), indicating that the Mw of XyGs was appropriate. The polydisperse index (PDI) of UAE‐XyG and WE‐XyG was > 1, indicating that the XyGs extracted using UAE and WE represented a type of heterogeneous natural polysaccharides with wide polymer particle size distribution 34 .…”

Section: Resultssupporting

confidence: 88%

Ultrasound‐assisted extraction of tamarind xyloglucan: an effective approach to reduce the viscosity and improve the α‐amylase inhibition of xyloglucan

Jiang

Yang

et al. 2022

J Sci Food Agric

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BACKGROUND Water extraction (WE) is the classical extraction method for tamarind xyloglucan (XyG), but its low yield, high viscosity and poor dispersion in aqueous solution are not conducive to the industrial applications. To promote the industrial application of tamarind XyG, an ultrasonic‐assisted extraction (UAE) method for extracting low‐viscosity XyG from tamarind kernel powder was proposed. RESULTS The yield of UAE‐XyG was higher (502.33 ± 0.036 g kg−1) than that of WE‐XyG (163.43 ± 0.085 g kg−1). UAE reduced the molecular weight, monosaccharide content and apparent viscosity of XyG. The hypoglycemic experiment in vitro showed that UAE‐XyG had a stronger inhibitory effect on α‐amylase activity than WE‐XyG, but its glucose dialysis retardation index was lower. CONCLUSION In sum, UAE is a type of extraction method that could effectively improve the yield of XyG and reduce its viscosity to expand its application without reducing its physiological activity. UAE exhibits an excellent potential in the extraction of XyG. © 2022 Society of Chemical Industry.

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“…38 An evolution of gelation was plotted in a logarithmic scale, and gel points were determined by the onset of gelation (G′ = G″, Figure 3A−C). 39 It should be noted that the first cross-points in Figure 3A,B are caused by fluctuation phenomena due to the relative small G′ and G″ values. 40 A sudden increase of modulus could be ascribed to the transformation from the liquid (G′ < G″) to the solid state (G′ > G″), suggesting the polymerization of KRGD-conjugated PAE/PEGDA.…”

mentioning

confidence: 94%

“…Hydrogel rheology measurements were conducted by a thermo rheometer to comprehend KRGD-conjugated PAE/PEGDA hydrogel . An evolution of gelation was plotted in a logarithmic scale, and gel points were determined by the onset of gelation ( G ′ = G ″, Figure A–C) . It should be noted that the first cross-points in Figure A,B are caused by fluctuation phenomena due to the relative small G ′ and G ″ values .…”

mentioning

confidence: 99%

Synthesis and Evaluation of Cytocompatible Alkyne-Containing Poly(β-amino ester)-Based Hydrogels Functionalized via Click Reaction

Yao

Gong

et al. 2020

ACS Macro Lett.

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Although poly(β-amino esters) (PAEs) have been widely applied in nonviral gene transfection, drug delivery systems, and regenerative medicine, the multifunctional modification of PAEs and bio-orthogonal strategies of PAE-based hydrogel functionalization is still a challenge. Herein, a strategy of poly(β-amino ester)-based hydrogel functionalization was developed via bio-orthogonal reactions in this study. Acrylate-terminated poly(β-amino esters) containing alkyne groups were synthesized by Michael addition reaction. Alkyne groups on poly(β-amino esters) could conjugate bioactive molecules with azide of K(N3)RGD via copper-catalyzed azide–alkyne cycloaddition, and terminal acrylate groups could in situ polymerize to prepare a hydrogel. A biomimetic peptide K(N3)RGD functionalized hydrogel was prepared by polymerization of acrylate-terminated poly(β-amino esters) containing conjugated peptide and polyethylene glycol diacrylate (PEGDA). The storage modulus and mechanical properties exhibited an increased trend with the increased concentration; nevertheless, swelling ratio and surface wetting properties demonstrated a decreased tendency by increased concentrations. Cell proliferation and live/dead staining showed that Schwann cells plated on the hydrogel with an elastic modulus of 25.39 KPa are more suitable for proliferation and function exertion of Schwann cells compared with that of 42.11 and 57.86 KPa, and KRGD-conjugated hydrogel could increase the elongation of Schwann cells relative to nonconjugated hydrogels. This azide–alkyne strategy may be a promising candidate for hydrogel functionalization in tissue engineering and other biomedical applications.

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Salt-induced thermal gelation of xyloglucan in aqueous media

Cited by 15 publications

References 27 publications

In-situ gelling xyloglucan formulations as 3D artificial niche for adipose stem cell spheroids

In-situ gelling xyloglucan formulations as 3D artificial niche for adipose stem cell spheroids

Ultrasound‐assisted extraction of tamarind xyloglucan: an effective approach to reduce the viscosity and improve the α‐amylase inhibition of xyloglucan

Synthesis and Evaluation of Cytocompatible Alkyne-Containing Poly(β-amino ester)-Based Hydrogels Functionalized via Click Reaction

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