Small-Angle X-Ray Scattering Studies on Nucleation Formation of Dextran Precipitation in the Presence of Boron

β-Lactoglobulin–dextran Maillard conjugates: Their effect on interfacial thickness and emulsion stability

“…The steric crowding model assumes a non-overlapping rigid ellipsoid model for dextran attached to a protein. However, dextrans can aggregate or change its conformation depending on the solvent and osmotic conditions [42,43], if this were the case, a non-overlapping rigid ellipsoid model might be inappropriate for dextran attached to a protein. An alternative explanation is that the decrease in protein surface load (increase in emulsion capacity) is due to a change in the arrangement of the protein at the interface due to a changed orientation or protein unfolding, rather than the dextran.…”

Preparation and Characterization of a Novel Morphosis of Dextran and Its Derivatization with Polyethyleneimine

“…Due to the instability of dextran solution during storage, it is advisable to prepare it in powder form. Hirata et al have reported that the generation process of dextran precipitates involves an adsorption process at the air-liquid interface to formulate dextran nuclei, followed by an elongation process that leads to the precipitation of dextran [7,8]. Consequently, the formation of the cross-linking structure that results in precipitation requires Stenekes et al have previously reported that dextran with a molecular weight of 6000 Da can be easily formulated into hydrogels and microspheres through crystallization [9].…”

“…Hirata and colleagues discovered that the presence of boron resulted in the aggregation of dextran, as determined by dynamic light-scattering measurements and X-ray-scattering techniques. Furthermore, the precipitation of dextran was found to be dependent on its molecular weight [7,8]. Dextrans lacking boron and possessing higher molecular weights (dextran 40,000 Da and 220,000 Da) exhibited resistance to precipitation, while concentrated aqueous solutions of low-molecular-weight dextran (dextran 6000 Da) were observed to form microspheres or gels [9].…”