abstract: this paper presents the results of studies concerned with the preparation of fresh food foams based on egg white and various hydrocolloids including iranian gum tragacanth, guar and xanthan gums at different concentrations (0.002-0.040% w/w). the basic physical parameters of the obtained foams such as overrun, stability and morphology of gas bubbles were measured. viscosity measuremen...

gum tragacanth is a natural complex mixture of polysaccharides and alkaline minerals extracted from species of astragalus plant, which is found widely in arid regions of the middle east. in a pilot experimental study we examined the effects of its topical application on wound healing in ten albino adult male rats. two similar parasagittal elliptical full-thickness wounds (control vs. test sampl...

introduction : one of the most important problems of synthetic packaging of materials had been the time consuming process of their decomposition. therefore, they have the potential to contaminate the environment. during the recent years, the above-mentioned problem has paved the way for developing biodegradable biopolymers. one group of these polymers is films and edible coatings. soy protein i...

Background: The presence of gluten proteins in rice flour leads to some problems for patients of celiac; a digestive autoimmune disease. Consumption of a non-gluten regime can decrease the effects of this disease. The aim of this study was to produce a non-gluten cake with an appropriate quality and high nutritional value by using rice flour, quinoa flour, Persian gums, and Tragacanth. Methods...

The effect of flaxseed gum (FG) on the rheological and nonlinear stress response behaviors of mixed soy protein isolate (SPI)-flaxseed gum (FG) dispersions were studied. Results showed that the viscosity of the SPI-FG mixed dispersions increased significantly with increase in the FG concentration. Both the shear stress and the apparent viscosity values as a function of shear rate were fitted we...

Ten Bacteroides species found in the human colon were surveyed for their ability to ferment mucins and plant polysaccharides ("dietary fiber"). A number of strains fermented mucopolysaccharides (heparin, hyaluronate, and chondroitin sulfate) and ovomucoid. Only 3 of the 188 strains tested fermented beef submaxillary mucin, and none fermented porcine gastric mucin. Many of the Bacteroides strain...

mayonnaise is a popular product which is consumed in large amounts. however, many consumers consider it as a unhealthy product as it contains high amounts of oil. therefore, production of low fat mayonnaise with a quality close to that of traditional one might respond to consumer demand. in the present study, gum tragacanth was used as a fat replacer for the preparation of low fat (lf) mayonnai...

various scaling methods such as relative viscosity, peclet and reynolds scaling were used to find the best scaling law. scaling and modeling of the flow curves of various model emulsions consist of tragacanth gum (tg) (0.5, 1 % wt), oleic acid (5, 10% v/v) and wpi (2, 4 % wt) were investigated and the best models were selected. as these emulsions are non-newtonian, they do not obey the usual, si...