Do puroindolines affect the impact of enzymatic lipid hydrolysis on loaf volume in bread making?

2019 ◽  
Vol 301 ◽  
pp. 125273
Author(s):  
Sara Melis ◽  
Brecht C. Verbauwhede ◽  
Julie Van de Vondel ◽  
Walter R. Meza Morales ◽  
Jan A. Delcour
Keyword(s):  
Loaf Volume ◽  
Bread Making ◽  
Lipid Hydrolysis ◽  
The Impact

A comparison of some small-scale tests for bread-making quality used in wheat breeding

1980 ◽  
Vol 95 (1) ◽  
pp. 29-34 ◽  
Author(s):  
J. A. Blackman ◽  
A. A. Gill
Keyword(s):  
Protein Quality ◽  
Small Sample Size ◽  
Sodium Dodecyl ◽  
Wheat Breeding ◽  
Small Sample ◽  
Small Scale ◽  
Loaf Volume ◽  
Bread Making ◽  
Wheat Varieties ◽  
Sedimentation Volume

SummaryTwenty-five winter wheat varieties and breeders' lines including hard and soft texture, good or poor bread and biscuit-making types were grown at two locations in the U.K. in 1977 to provide the test samples. Small-scale tests of bread-making quality including extensometer, sodium dodecyl sulphate (SDS) sedimentation volume, residue protein, urea dispersible protein and Pelshenke tests, were compared with loaf volumes and loaf scores.Averaged over the two sites, a modified extensometer test and the SDS test gave the closest correlation with loaf volume and loaf score and were only poorly correlated with Hagberg Falling Number and percentage protein. The SDS test gave the closest correlation between sites followed by the extensometer readings; loaf volume and score had much lower values. The SDS values and extensometer readings give a better measure of the genetic differences in protein quality of varieties than loaf volume and score, being less affected by growing conditions. With its small sample size and high throughput, the SDS sedimentation volume is likely to be the most useful screening test for wheat breeding programmes.

scholarly journals Effect of Grewia venusta FRESEN mucilage on the proximate composition, physical and sensory properties of bread produced from wheat and cassava composite flours

2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Arubi P. Alobo ◽  
Gibson L. Arueya
Keyword(s):  
Stem Bark ◽  
Sensory Properties ◽  
Loaf Volume ◽  
Bread Making ◽  
Cassava Flour ◽  
Composite Flours ◽  
Bread Production ◽  
Natural Additive ◽  
Sweet Cassava ◽  
Composite Bread

Wheat and cassava composite breads are generally associated with volume and textural defects in contrast with the traditional wheat based variants. Efforts to mitigate this challenge through use of synthetic additives have been unsuccessful owing to safety concerns. The objective of this study was to explore Grewia venusta mucilage as a potential natural additive in wheat-cassava composite bread production. Sweet cassava flour was used to replace wheat flour at 100: 0 (control), 90:10, 80:20 and 70:30% ratios in bread making. Aqueous extract of G. venusta stem bark was oven dried (50±3 oC), milled and added at 0, 1.0 and 2.0% (w/w) to the flour mixtures. These, along with other conventional inputs were mixed, and used to produce bread. Proximate compositions, physical and sensory properties of the bread loaves were evaluated. Cassava flour inclusion resulted in significant (P≤0.05) decrease in the protein content of the control from 18.1% to 12.1% (90:10%), 11.5% (80:20%) and 9.9% (70:30%). Addition of mucilage marginally increased the protein and dietary fibre contents of the loaves. Loaves containing 1-2% mucilage were more regular in shape with smoother crust than those without mucilage. Cassava flour addition at 10%, 20% and 30% decreased loaf height from 6.0 cm to 5.8 cm, 5.7 cm and 5.5 cm, as well as loaf volume from 815.5 cm3 to 783.1 cm3, 776.8 cm3 and 744.5 cm3, respectively. Mucilage inclusion resulted in increased heights and volumes of the loaves and reduced weights of loaf fragments upon slicing. The mucilage significantly improved the texture of the bread loaves. 

scholarly journals Some correlations between parameters of winter wheat technological quality

2006 ◽  
Vol 54 (1) ◽  
pp. 23-30
Author(s):  
Jindřiška Kučerová
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Protein Content ◽  
Negative Correlation ◽  
Weather Conditions ◽  
Loaf Volume ◽  
Bread Making ◽  
Wheat Varieties ◽  
Baking Quality ◽  
Technological Quality

The results of three-year trials (1999 to 2001) conducted with six winter wheat varieties in which was studied the grain yield and parameters of technological quality. Varieties of wheat come from four different localities of the Czech Republic. The most favourable weather conditions, a lot of precipitation and high temperature in the course of ripening from three years were proved in the year 2000. The best grain yield were in 2001 (average of sites 8.84 t/ha) and variety Semper, worst quality, had the highest grain yield of 9.17 t/ha, the least grain yield had Sulamit, best quality (7.94 t/ha). The laboratory analysis revealed negative correlation between grain yield and baking quality. The number of statistically highly significant correlations among bread-making quality parameters too.The negative correlation was of grain yield and grain volume mass (P < 0.05), Zeleny test and protein content taken as a whole for three years (P < 0.01). The correlation of loaf volume, which is the traits of baking quality and Zeleny test (r = 0.6016**), protein content (r = 0.5932**), dough stability (r = 0.2898**) and flour water absorption (r = 0.3632**) was positive (P < 0.01).

scholarly journals Physicochemical properties of fermented and non-fermented rice bran flour and its utilization in bread making

2014 ◽  
Vol 4 (3) ◽  
pp. 436-441
Author(s):  
Ifesan B.O.T ◽  
B. T Ifesan ◽  
Orogbangba A.K
Keyword(s):  
Wheat Flour ◽  
Rice Bran ◽  
Mineral Content ◽  
Total Phenol Content ◽  
Loaf Volume ◽  
Phytochemical Screening ◽  
Dpph Radical ◽  
Bread Making ◽  
Significant Difference ◽  
Sensory Parameters

Rice bran was subjected to natural fermentation for 4 days and investigated for its physicochemical, antioxidant, phytochemical, functional properties and mineral content. In addition, the fermented and non-fermented rice bran flours were supplemented with wheat flour in several ratios for baking bread. The proximate composition results obtained showed that fermented rice bran flour possessed protein content of 5.68%, fibre (37.8%), fat (2.97%) and carbohydrate (31.06). It was observed that the total phenol content for non-fermented rice bran flour (362.69 GAE µg/ml) was higher than fermented bran flour (359.15 GAE µg/ml). However, the ability of the samples to scavenge 1,1-di phenyl-2-picrylhydrazyl (DPPH) radical was higher in fermented flour (57.0mg/ml) than in non-fermented sample (55.0 mg/ml). The result of the qualitative analysis of the phytochemical screening revealed that only saponin was present in the rice bran flours. The mineral composition of the non-fermented and fermented rice bran flours revealed that the flours possessed magnesium (0.19%-0.18%), sodium (0.06%-0.17%), calcium (0.08%-0.13%) and potassium (0.03%-0.02%). The physical properties of bread sample at 20% rice bran flour supplementation showed that there was no significant difference between loaf volume of the wheat flour bread and non-fermented rice bran bread (360cm3) while there was significant difference in the loaf volume of fermented rice bran bread (281cm3). It was observed that the fermented rice bran bread had the highest fibre content (1.83%), followed by non-fermented rice bran bread (1.37%) and wheat flour bread (0.95%). The sensory analysis revealed that both the fermented and non-fermented rice bran breadswere scored above average in all sensory parameters although wheat flour bread was preferred. 

scholarly journals NUTRITIONAL AND SENSORY ANALYSES OF WHEAT-UNRIPE PLANTAIN COMPOSITE FLOUR ON BREAD MAKING

2021 ◽  
Vol 5 (9) ◽  
Author(s):  
Christopher J. Etti ◽  
Victoria G. Ekanem
Keyword(s):  
Agricultural Products ◽  
Wheat Bread ◽  
Composite Flour ◽  
Loaf Volume ◽  
Bread Making ◽  
High Iron Content ◽  
Nutritional Analysis ◽  
Composite Flours ◽  
Sensory Analyses ◽  
Loaf Weight

This study analyzes the nutritional and sensory properties of wheat- and unripe plantain composite flour having a mix ratio of 70:30, 80:20, 90:10 and 100:0 respectively, with 100:0 ratio mix serving as the control. Unripe plantain flour was selected due to its high iron content which can solve dietary concerns encountered by anaemic and celiac patients because of low iron and high protein (gluten) content in wheat bread. The nutritional analysis of the composite flour such as ash, lipid, fibre, carbohydrate, protein, moisture content and iron contents of the mixed flour were determined. Physical properties of the composite bread were determined: loaf weight, loaf volume, loaf height, and loaf specific volume.The incorporation of plantain flour into baking bread became effective because it is economical, better supplies essential nutrients such as iron and protein to humans, and a better overall use of domestic agricultural products such as plantain.Incorporation of higher amount of unripe plantain flour increased loaf weight with a corresponding reduction in specific volume of the bread, which affected the bread making process. It was concluded that organoleptically acceptable bread could be formulated from wheat-unripe plantain composite flours using up to 70:30 mix ratio as maximum acceptable levels of substitution for bread making

scholarly journals Rheology Methods as a Tool to Study the Impact of Whey Powder on the Dough and Breadmaking Performance of Wheat Flour

Fluids ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 50 ◽  
Author(s):  
Christine Macedo ◽  
Maria Cristiana Nunes ◽  
Isabel Sousa ◽  
Anabela Raymundo
Keyword(s):  
Wheat Flour ◽  
Negative Impact ◽  
Profile Analysis ◽  
Dough Rheology ◽  
Loaf Volume ◽  
Small Amplitude Oscillatory Shear ◽  
Texture Profile ◽  
Whey Powder ◽  
Frequency Sweeps ◽  
The Impact

Considering the nutritional value, whey is an excellent ingredient for the development of food products, in line with the concept of a circular economy for the reuse of industry by-products. The main objective of this work was to evaluate the impact of the whey addition on the rheology of wheat flour dough and breadmaking performance, using both empirical and fundamental methods. Different levels of commercial whey powder (0%, 12%, 16% and 20% w/w) were tested in a bread formulation previously optimized. Dough mixing tests were performed using Micro-doughLab and Consistograph equipment, to determine the water absorptions of different formulations and evaluate empirical rheology parameters related to mixing tolerances. Biaxial extension was applied by the Alveograph to simulate fermentation during the baking process. Fermented doughs were characterized in a Texturometer using penetration and extensibility tests, and by small amplitude oscillatory shear (SAOS) measurements, a fundamental rheology method, in a Rheometer applying frequency sweeps. Loaf volume and firmness were used to study the breadmaking quality. Despite a negative impact on the empirical rheology parameters of the dough and poorer baking results, the use of this by-product should be considered for nutritional and sustainability reasons. In addition, significant correlations (r2 > 0.60) between the dough rheology parameters obtained from the empirical measurements were established. Changes in the gluten structure were not accurately detected by the SAOS measurements and Texture Profile Analysis of the doughs, and a correlation between fundamental and empirical measurements was not found. Consistograph or Micro-doughLab devices can be used to estimate bread firmness. Extensional tests in the Texturometer, using SMS/Kieffer Dough and Gluten Extensibility Rig, may predict loaf volume.

scholarly journals The way of old bread recycling in the bread making

2020 ◽  
Vol 161 ◽  
pp. 01082
Author(s):  
Olesia Savkina ◽  
Lina Kuznetsova ◽  
Marina Lokachuk ◽  
Olga Parakhina ◽  
Elena Pavlovskaya ◽  
...  
Keyword(s):  
Microbial Contamination ◽  
Nutrient Deficiency ◽  
Economic Benefits ◽  
Food Resources ◽  
Natural Food ◽  
Bread Making ◽  
Slowing Down ◽  
Sourdough Bread ◽  
The Impact

The recycling of non-standard bread (with cracked crust, unsatisfactory mass or non-standard shape) saves natural food resources and provides economic benefits for bakers. The objective of this study was to investigate the impact of recycled old bread on the quality of sourdough and bread. An increase in the bread dosage in the rye dense sourdough more than 25% instead of flour negatively affected sourdough quality. The deterioration of the sourdough quality was not associated with a nutrient deficiency. When 25% of recycling old bread was in the sourdough, the quality of the bread was comparable to the control, but the crumbliness was 1.5 times less compared to the control, which indicates a slowing down of the staling process in bread made with recycled bread in sourdough. Bread fermentation in sourdough allowed getting bread with a good smell and taste. Old recycled bread did not significantly affect the microbial contamination of new bread, especially in terms of moulds and yeasts.

Our Daily Bread Co.

2017 ◽  
pp. 1-20
Author(s):  
Kamalini Ramdas
Keyword(s):  
Process Analysis ◽  
Excess Capacity ◽  
Bread Making ◽  
Seasonal Demand ◽  
Link Type ◽  
Bread Production ◽  
The Impact

Our Daily Bread was a small boutique bakery producing a variety of daily and specialty breads. The company had excess capacity and was considering several options to increase revenues by entering the wholesale bread production business. The case allows students to perform process analysis in a multiproduct setting with seasonal demand and evaluate the impact on capacity, as well as the profitability of, potential wholesale orders. The case also enables analysis of the option to purchase new equipment. A teaching note and video supplement (OM-1018V) are available to registered faculty. The videos highlight the stages in bread making and provide a bird's-eye view of the entire operation. VIEW DEMO

The effects of a granular nitrogen fertilizer and a foliar spray of urea on the yield and bread-making quality of ten winter wheats

1976 ◽  
Vol 87 (2) ◽  
pp. 281-292 ◽  
Author(s):  
Fiona M. Pushman ◽  
J. Bingham
Keyword(s):  
Protein Content ◽  
Nitrogen Fertilizer ◽  
Foliar Spray ◽  
Loaf Volume ◽  
Bread Making ◽  
Wheat Varieties ◽  
Urea Treatment ◽  
Flour Protein ◽  
Effect On Yield

SummaryTen winter wheat varieties, representing a range of milling and bread-making quality were grown in a split-plot field trial with two levels of irrigation and three levels of nitrogen fertilizer. Grain yield was increased by irrigation and by fertilizer treatments. Application of 90 kg N/ha applied in granular form increased yield by 12.4 and 6.1% and grain protein by 13.0 and 33.7% for the irrigated and non-irrigated plots respectively. A further 45 kg N/ha applied as an aqueous foliar spray of urea (0.125 kg/1) at anthesis increased protein by 12.4% for the irrigated plots and by 8.8% for the non-irrigated plots with little effect on yield. The varieties differed significantly in yield and protein content, resulting in negative regressions of yield and protein content at each N treatment. The production of protein (weight N/unit area) was similar for all varieties, but flour extraction was reduced by the urea treatment. Varietal differences in flour extraction were stable and not correlated with either 1000-grain weight or test weight. Loaf volume was increased by the granular N fertilizer but not by the urea spray, despite the increase in flour protein and a decrease in flour α-amylase activity, indicating that applications of nitrogen after anthesis are likely to be later than the optimum for improving bread-making quality.

Sign in / Sign up

Export Citation Format

Share Document