2016
DOI: 10.1063/1.4944239
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The study of the structural properties of very low viscosity sodium alginate by small-angle neutron scattering

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Cited by 3 publications
(3 citation statements)
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“…Additionally, the authors observed the formation of an alginate secondary structure in the presence of Ca 2+ ions, but only when a Ca 2+ concentration higher than a critical concentration was used. Nano-domains dimensions of AFG produced using a CaCl2/ALG ratio lower than the CRMF were in accordance with the values obtained by Badita et al (Badita, et al, 2016). In addition, He et al (He, et al, 2016) reported the formation of "nuclei" of gelation when CaCl2/ALG ratio lower than a critical value was used.…”
Section: Effect Of Alg/cacl2 Ratiosupporting
confidence: 89%
“…Additionally, the authors observed the formation of an alginate secondary structure in the presence of Ca 2+ ions, but only when a Ca 2+ concentration higher than a critical concentration was used. Nano-domains dimensions of AFG produced using a CaCl2/ALG ratio lower than the CRMF were in accordance with the values obtained by Badita et al (Badita, et al, 2016). In addition, He et al (He, et al, 2016) reported the formation of "nuclei" of gelation when CaCl2/ALG ratio lower than a critical value was used.…”
Section: Effect Of Alg/cacl2 Ratiosupporting
confidence: 89%
“…The two CaCl2/alginate fractions gave AFG particles with D3,2 values of ~200 nm (ratio of 0.125) and ~2 µm (ratio of 0.175), regardless of whether vanillin was present (VFG) or not (AFG) during their production; the particle size distributions for all fluid gel formulations are presented in Figure 6. AFG particle dimensions for the lower CaCl2/alginate ratio (0.125) were in agreement to the size of alginate nano-assemblies reported by Badita et al (2016) to form under CaCl2 and alginate contents comparable to those used here. The latter study concludes that at such relatively low calcium concentrations, gelation is limited and alginate aggregates of spherical shape and rough surfaces are formed with a radius of gyration of ~300 nm.…”
Section: Fluid Gel Particle Size and Rheological Behavioursupporting
confidence: 89%
“…In contrast, the stretching vibration bands observed at approximately 939 cm -1 and 889 cm -1 are specific for guluronic and mannuronic acids. Also, small displacements of the carboxyl groups were observed, which may be indicative of an ionic union between Ca 2+ and sodium alginate chains [41]. In addition, in the evaluation of the colorimetric indicator with ETD a crossover is observed in the stretching of the O-H group in the range of 3600-3000 cm -1 .…”
Section: Infrared Spectroscopy (Ftir)mentioning
confidence: 93%