Hydrolysis and depolymerization of gluten proteins during sourdough fermentation were determined. Neutral and acidified doughs in which microbial growth and metabolism were inhibited were used as controls to take into account the proteolytic activity of cereal enzymes. Doughs were characterized with respect to cell counts, pH, and amino nitrogen concentrations as well as the quantity and size d...

The importance of olfaction for various avian behaviors has become increasingly evident. So far, the use of olfaction for food detection among raptors has only been demonstrated for Cathartes vultures. The Oriental honey buzzard (Pernis orientalis) is a resident and migrant in Taiwan and regularly forages in apiaries. One of its foods in apiaries is yellow pollen dough, a softball-sized mixture...

This study identified the odor-active compounds and the qualitative characteristics of doughs from "ancient" grains flours fermented by lactic acid bacteria. For this purpose doughs made with quinoa and Kamut® flours have been produced and inoculated with strains belonging to the species Lactobacillus paracasei, Lactobacillus plantarum and Lactobacillus brevis and compared with fermented doughs...

Technological performance of wheat flour varies among different wheat varieties. Gluten plays a key role within the solid phase of dough in the formation and the retention of gas bubbles during breadmaking. Rheological tests are usually performed to predict breadmaking potential. The aim here was to investigate the ability of ultrasound to discriminate wheat doughs based on breadmaking qualitie...

Yeasts isolated from a freshly tapped palm wine obtained from Akure, Nigeria were identified as Schizosaccharomyces pombe, Saccharomyces cerevisiae, Debaryomyces hansenii, Geotrichum lactis and Zygosaccharomyces rouxii. Each of the isolates was used to ferment wheat flour dough and baked. Sensory analysis of the doughs was carried out using leavening, texture, aroma, taste and appearance. Sacch...

The present work was carried out to retrieve the origin of lactic acid bacteria (LAB) in sourdough. To this purpose, wheat LAB were monitored from ear harvest until the first step of fermentation for sourdough development. The influence of the geographical area and variety on LAB species/strain composition was also determined. The ears of four Triticum durum varieties (Duilio, Iride, Saragolla ...

Effects of ingredients on frozen state properties of wheat doughs were investigated using different thermal analysis techniques. Also, the water sorption properties and glass transition temperatures for different cereal materials were determined. DSC thermograms were obtained for different dough samples annealed at a few degrees below the onset temperature of ice melting of the material, then c...

Zein is a gluten-free storage protein from corn that provides extensibility to starch-based doughs. However, zein does not confer strong elastic behavior, fundamental feature produce high quality bread. Previous research showed extrusion above 160 °C can improve dough viscoelasticity through the generation of molecular weight fraction. To determine whether thermal treatments alone could similar...

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 study was the evaluation of the influence of the breadmaking process on initial deoxynivalenol (DON) contamination. Samples (92) were taken from four batches of eight different types of products in a low-technology bakery. The final products, as well as the corresponding flours, doughs and fermented doughs were analyzed. Extracts were obtained with acetonitrile:water (84:16), th...