Amino-functionalized cellulose: a novel and high-efficiency scavenger for sodium cholate sorption

Adsorption of Sodium Cholate on Cationic Dextran Gels: Comparison of Isotherm Binding Models

“…Therefore, the parameters calculated with these models can be used to evaluate the adsorption mechanism. For example, the good fitting of the experimental data to Langmuir model confirmed the homogeneous monolayer adsorbtion of NaCA by dextran-based hydrogels, what was also observed for other bile acid-sorbent systems [39][40][41][42]. Langmuir constant values (KL) are associated to the affinity between bile acid salt and gels.…”

“…The good fit of the Temkin isotherm model demonstrated that adsorption was characterized by a uniform distribution of binding energies, up to a maximum binding energy [30]. There are many systems bile acid-sorbent where Temkin isotherm fitted good [40,41,[43][44][45][46]. ΔQ= (−ΔH) was positive for all the studied polymers, which indicated that the adsorption process was exothermic.…”

“…The maximum experimental adsorption capacity of dextran-based hydrogels for NaCA (850-1075 mg/g) was higher than that found for the same ligand when adsorbed on aminated polysaccharides or resins [40,41,45,49,50] but lower when compared with hydrogels based on aminated synthetic (co)polymers [51,52] (Table 5). However, the later have a much higher content in quaternary ammonium groups.…”

“…However, the later have a much higher content in quaternary ammonium groups. Cationic amphiphilic microfibrillated cellulose 79.3 [45] Amino-functionalized celluloseby hyperbranched polyethylenimine 569.7 [40] Polyacrylamide resin with pendant quaternary ammonium groups 903 [49] N-Octadecylpectinamide 817 [50] Poly((3-acrylamidopropyl)trimethylammonium chloride)-co-poly(2-hydroxyethyl acrylate))-based hydrogel 1553 [51] Poly((3-acrylamidopropyl)trimethylammonium chloride) -based hydrogel 1778 [52] Dextran-based hydrogels 850-1075 This work…”

Characterization of Berry Pomace Powders as Dietary Fiber-Rich Food Ingredients with Functional Properties

“…The samples were then centrifuged at 4000× g for 20 min (Labofuge 200, Thermo Scientific, UK). The amount of unbound sodium cholate in the supernatant was determined using the method described by Shen et al [ 29 ]. Briefly, 0.5 mL of supernatant was mixed with 4.5 mL of 42% w / w sulfuric acid for 20 min at 70 °C.…”