The effect of intracellular charged amino acids on freeze tolerance in dough was determined by constructing homozygous diploid arginase-deficient mutants of commercial baker's yeast. An arginase mutant accumulated higher levels of arginine and/or glutamate and showed increased leavening ability during the frozen-dough baking process, suggesting that disruption of the CAR1 gene enhances freeze t...

Wheat flour dough is a rheologically complex viscoelastic material, whose unique time-dependent properties depend on the quality of the flour, the available moisture, and the extent to which the dough is mixed. The rheological properties developed in dough during mixing are governed by the rate, amount, and type of deformation applied. As a result, dough mixers have evolved into highly complex ...

This study was conducted to validate a simulated commercial baking process for hamburger buns to destroy Salmonella serovars and to determine the appropriateness of using nonpathogenic surrogates (Enterococcus faecium ATCC 8459 or Saccharomyces cerevisiae) for in-plant process validation studies. Wheat flour was inoculated (~6 log CFU/g) with three Salmonella serovars (Typhimurium, Newport, or ...

The research aimed to study the effects of 0–20% substitution wheat flour with grape pomace powder (GPP) on rheological and pasting properties dough, sensory properties, digestive antioxidant activities prepared biscuits. results analysis showed that incorporation GPP concluded in reduced water absorption (WA) increased dough stability. Rapid visco-analyser (RVA) suggested could increase breakd...

In this study, the incorporation of leek in wheat bread was explored. Green leaves were dried with two techniques to obtain powder after milling. The air-dried and freeze-dried powders incorporated into flour at five substitution levels (0, 0.5, 1, 1.5 2 g/100 g). impact on dough rheology, quality, sensory evaluation mould-free shelf-life investigated. Leek negatively impacted mixing properties...

in recent years dietary fibers have been considered due to its beneficial effects. since the amount of fiber in dietary diet is usually less than the recommended amount (30 gr/day), fortification of bread with fiber can play an important role to achieve its health benefits. this project was studied to investigate on the possibility of supplementation of flour with dietary fibers. two different ...

The functionality of gluten extracted from Canada Western Red Spring (CWRS) and Canada Western Extra Strong (CWES) wheat flours was evaluated and compared. The extra-strong wheat cultivars had stronger dough properties and produced smaller bread loaves than AC Barrie. Modifications of a starch displacement gluten extraction method were evaluated. For optimal gluten formation and extraction, wat...

Fourier transform horizontal attenuated total reflectance (FT-HATR) was used to examine changes in the secondary structure of gluten proteins in a flour-water dough system during mixing. Midinfrared spectra of mixed dough revealed changes in four bands in the amide III region associated with secondary structure in proteins: 1317 (alpha-helix), 1285 (beta-turn), 1265 (random coil), and 1242 cm (...

In this work, autochthonous lactic acid bacteria (LAB) were isolated from chia (Salvia hispanica L.) dough and selected on the basis of the kinetics of acidification and proteolytic activity. Strain no. C8, identified as Lactobacillus plantarum C8, was selected and used as starter to obtain chia sourdough. Lactic acid fermentation increased the organic acid mass fractions (lactic, acetic and ph...

HRUŠKOVÁ MARIE, ŠVEC IVAN. 2016. Fermented Dough Characteristics of Wheat-barley-hemp Composites. Comparison of Two Dosages of Barley and Hemp Wholemeal/Flour. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 64(3): 803–812. Wheat fl our substitution by barley one led to shortening of fermentation and leavening times (about 14–57% and 35–83%, respectively) as well as to l...