film coating solutions containing different grades of hpmc (e5, e15 and e50) with and without polyethylene glycol (with various molecular weights) were examined by an oscillatory method, using haake cv 100 rheometer. fundamental rheological parameters (?, g? and g² ) were measured over the frequency range from 0.04 to 2 hz. the variation with frequency of the loss tangent (a ratio of viscous to...

yog-ice cream (frozen yogurt), is a kind of frozen dessert which has similar features to ice cream in physical and appearance characteristics. recently, there has been a growing interest in using frozen yogurt due to existence of lactic acid bacteria & fermentation processing. besides, yog-ice cream contains lower levels of sugar, fat & emulsifiers than ice cream. this research was conducted to...

the effect of flour extraction rate on flour composition, dough rheological characteris-tics and the quality of iranian flat breads (lavash, taftoon and barbari) and their staling rate was investigated. flours with different extraction rates (70, 75, 80, 83, 86, 88, 90 and 93) were subjected to different tests. resultes indicated that, by increasing the extraction rate, the amount of protein, f...

From measurements with a Couette-type viscometer provided with a guard ring it was shown that at the saliva-air interface a protein layer is adsorbed. Measurements of the surface shear modulus of this layer on saliva of 7 healthy subjects were performed at a frequency of about 70 Hz and a temperature of 25 degrees C. For a surface age of about 1.5 h the surface shear modulus and the surface vis...

Properties of fresh bigeye fish mince 25 26 2 ABSTRACT 27 Composition and properties of fresh bigeye snapper fish (Priacanthus hamrur) mince 28 has been investigated. The protein content of fish mince was 16.71g/100 g mince. Amino 29 acid analysis revealed higher proportion of glutamic acid, alanine, lysine and leucine. 30 Fatty acid profile indicated higher proportion of EPA and DHA content. G...

The sustainability of the built environment is increasingly coming to the forefront of infrastructure design and maintenance decisions. To address this, development of a new class of more sustainable cement-based materials is needed. Fiber reinforced self-consolidating mortar (FRSCM) was developed by optimizing the micromechanical parameters, which control composite properties in the hardened s...

This research aimed to assess and determine rheological properties of chocolate pistachio produced from various volumes of monoglycoside (1% and 2%), date powders (34, 38 and 42%) and pistachio pastes. The analyses were performed at temperaturesof 45 ºC, 65 ºC after 3 and 5 hours of processing. These products were found to exhibit nonNewtonian, pseudo-plastic behavior at all treatments. Apparen...

Background and Objectives: Kefiran (Kef) is a water-soluble polysaccharide that can form transparent film however, it is brittle. Therefore, in order to improve the mechanical properties of kefiran film, a mixture with other polymers can be offered. The expansion of mixed systems can propose kefiran and polyvinyl alcohol (PVOH) as a new composite film. Materials and Methods: Solutions of 20 gr...

The theological parameters of a clay suspension can be used to evaluate particle-particle interactions. Although there have been many studies of the rheological behavior of suspensions of reference clays, only few studies were performed with suspensions of mixed clays, and the rheological properties of these suspensions are not yet fully understood. The length-to-width ratio of some soil clays ...