Role of xanthan gum on physicochemical and rheological properties of rice bran oil emulsion
ثبت نشده
چکیده
Xanthan gum is a high molecular weight substance with potential in improving emulsions properties. The formulation composition was selected on Tween 80 ternary phase diagram and was modified by the addition of xanthan gum at different concentrations (0.0% – 1.0%). The main objective of this study was to determine the effect of xanthan gum on physicochemical and rheological properties of rice bran oil emulsion. Xanthan gum concentrations have affected the formulations droplet size. Yet, they did not show any effect on pH of the formulations. However, an increase in xanthan gum concentration had increased the zeta potential value, stability, and viscosity of the formulations. Xanthan gum also enhanced the flow behaviour of the formulations.
منابع مشابه
Effects of protein concentration and oil-phase volume fraction on the stability and rheology of menhaden oil-in-water emulsions stabilized by whey protein isolate with xanthan gum
The influences of protein concentration (0.2, 1, 2wt%) and oil-phase volume fraction (5%, 20%, 40% v/v) on emulsion stability and rheological properties were investigated in whey protein isolate (WPI)-stabilized oil-in-water emulsions containing 0.2wt% xanthan gum (XG). The data of droplet size, surface charge, creaming index, oxidative stability, and emulsion rheology were obtained. The result...
متن کاملPhysical and Rheological Properties of Oil in Water Heat Stable Emulsions Made from Different Stabilizers
Oil in water emulsions have attracted considerable attention in food industry due to their large applications. In this study, the effect of thermal treatment on oil in water emulsions (o/w) containing 40% oil was studied. The emulsions were prepared using xanthan gum, guar gum and carboxymethyl cellulose as stabilizer and polyoxyethylen sorbitan monooleat as emulsifier. A mixture design was use...
متن کاملEffect of Dispersed Phase Volume Fraction on Physical Stability of Oil-in-Water Emulsion in The Presence of Gum Tragacanth
Background: The dispersed phase volume fraction plays key role in oil-in-water emulsion stability by different mechanisms like partial flocculation, depletion flocculation and bridging flocculation. Since the mentioned mechanism is affected by emulsifier concentration presented in system, the major aim of this study was to investigate the effect of dispersed phase volume fraction on physical st...
متن کاملEffect of Irradiated Gum Tragacanth on Rheological Properties of Oil in Water Emulsion
Background: Emulsions are thermodynamically unstable systems that can be kinetically stable by adding substances known as emulsifiers and/or thickening agents. By respect to the functional properties of gum tragacanth (GT), and its breakage probability during irradiation treatment, the major aim of this study was to investigate the stability of oil in water emulsion in the presence of different...
متن کاملDiscrimination of orange beverage emulsions with different formulations using multivariate analysis.
BACKGROUND The constituents in a food emulsion interact with each other, either physically or chemically, determining the overall physico-chemical and organoleptic properties of the final product. Thus, the main objective of present study was to investigate the effect of emulsion components on beverage emulsion properties. RESULTS In most cases, the second-order polynomial regression models w...
متن کامل