The solution properties of some cationic polyelectrolytes with ammonium quaternary centers either attached to an acrylic macromolecular chain (polycation PDMAEMQ type) or in the backbone (polycation PCA type) have been measured in order to identify how charge density, polyelectrolyte concentration, solvent polarity as well as temperature influence their behavior in solution by viscometric, cond...

The development of a low glycemic index (GI) coconut milk ice cream by replacing 12% sucrose with different low GI sweeteners (xylitol, erythritol, inulin and fructose) was investigated. Three mixtures of sweeteners (6.2% xylitol + 7% inulin, 4% erythritol + 7% inulin + 2.15% fructose, 8.5% inulin + 5% fructose) were reformulated to obtain the similar characteristics as using 12% sucrose, inclu...

The mechanical and water vapor permeability of starch/carrageenan cast films were investigated, the rheological properties of starch/carrageenan blends were also studied. The blends were prepared by different concentrations of starch and carrageenan. Three concentration of starch (0.75%, 1% and 1.25%) and two concentrations of carrageenan (0.5% and 0.75%) were used with adding 0.5% glycerol as ...

Investigation on natural sources from plants, animals, and microorganisms that produce gums mucilages goes increasing day by to check their pharmaceutical applications. Different have been studied for effects but the use of date palm (Phoenix dactylifera L.) mucilage as a excipient is still under cover. The aim this study was therefore evaluate compare flow property binding ability crude, purif...

Injection of Newtonian fluids to displace pseudoplastic and dilatant fluids, governed by the power-law viscosity relationship, is common in many industrial processes. In these applications, changing displaced fluid through velocity alteration can regulate interfacial instabilities, displacement efficiency, thickness static wall layer, injected fluid’s tendency move toward particular parts chann...

Abstract The key for improving the mixing efficiency of pseudoplastic fluids is to enhance chaotic degree in flow field. xanthan gum solution was used study characteristics and performance a stirred tank with impeller perturbed six-bent-bladed turbine. Based on velocity time series collected by experiment particle image velocimetry (PIV), distributions largest Lyapunov exponent (LLE) Kolmogorov...

Aim: Topical drug delivery of fluconazole, an antifungal drug, in gel form was formulated to avoid the side effect of the oral route. Methodology: Different polymers; Sodium carboxymethyl cellulose, Sodium alginate, Carbopol 934P, Hydroxypropylmethyl cellulose, Pluronic F-127 and hydroxypropyl cellulose, were used. The compatibility of fluconazole and different gelling polymer was assessed thro...

Production, viscosity, and chemical composition of xanthan synthesized by bacterium Xanthomonas campestris pv pruni strain 101 were evaluated in bioreactor systems. During the process, the volumetric oxygen mass transfer coefficient (k(L)a) and the biomass were determined and the pH was monitored. The cultures were grown in a 3 I bioreactor, with aeration and agitation varying as follows: condi...