BACKGROUND The effects of mixtures of reducing and oxidising agents on the rheological characteristics and quality of wheat flour dough and the sensory characteristics of buns were studied. RESULTS In chemical analyses, no differences between control dough and doughs with individual mixtures of additives were found. Rheological measurements showed that increasing addition of L-ascorbic acid +...

Hrušková M., Švec I. (2017): Rheological characteristics of composite flour with linseed fibre – relation to bread quality. Czech J. Food Sci., 35: 424–431. Linseed fibre represents a rich natural source of dietary fibre. Here, we report that the addition of linseed fibre at levels of 2.5 and 5.0% changes the viscosity of wheat flour as well as the rheological properties of non-fermented and fe...

Many varieties of bread are prepared using flour coming from wheat. However, there are other types of flours milled from rice, legumes and some fruits and vegetables that are also suitable for baking purposes, used alone or in combination with wheat flour. The type of flour employed strongly influences the dough consistency, which is a relevant property for determining the dough potential for b...

Cell-surface engineering (Ueda et al., 2000) has been applied to develop a novel technique to visualize yeast in bread dough. Enhanced green fluorescent protein (EGFP) was bonded to the surface of yeast cells, and 0.5% EGFP yeasts were mixed into the dough samples at four different mixing stages. The samples were placed on a cryostat at -30 degrees C and sliced at 10 microm. The sliced samples ...

Cereal Chem. 70(l):59-63 A capillary extrusion rheometer was employed for detailed investigation coefficient of 2,395 Pa-sec 03 4 . The flow curves, corrected for end effects of the flow behavior of wheat flour-water dough. Dough was extruded and for effect of die diameter on shear rates, were independent of capillary at ambient conditions through capillaries of different lengths and diamdimens...

This study presents the action of an exogenous enzyme: protease in different dosages, in the bread dough. The determination of the rheological characteristics of the dough is obtained by alveographic method. The addition of proteolytic enzymes allows adjustment of the rheological characteristics of dough according to the needs of the technological process. The specific effect of proteases on th...

The rising of bread and the quality of the baked loaf depend upon the nature of the dough and especially upon such of its properties as tenacity, ductility, and elasticity. These properties are hard to define theoretically in this complex colloidal system, but they are, as we have found, related to viscosity or to whatever may determine the resistance of dough to stirring and to flowing through...

It is known that crystalline amylopectin of starch plays a role of resistant starch. Although crystalline amylopectin of starchy food melts almost completely during its heat-processing, the melting may be prevented by a pre-dehydration treatment, because melting temperature of the crystalline amylopectin increases with a decrease in the water content of starch. In order to some insight into the...

Cereal Chem. 72(l):53-58 The range in moduli for isolated starch and vital gluten doughs showed action of the starch with the gluten. The source of gluten also had a the existence of starch-gluten or starch-gluten-water interactions in dough. significant effect on dough rheology, as indicated by the range of elastic Starches isolated from different wheat cultivars and mixed into dough (G') and ...

The aim of this work was to quantify the effects of psyllium fiber addition to wheat flour at the levels of 0, 1, 2, 3 and 4% on the rheological behavior of the dough. The rheological properties of the dough were investigated using the rheological device, Farinograph. Upon the addition of psyllium fiber, a significant increase in Farinograph water absorption, simultaneously with the increase of...