Torque measurement in real time during mixing and kneading of bread dough with high content of resistant maize starch and enzymes

In this work, a methodology to measure torque during dough mixing in large scale was developed and the baking performance of bread dough formulated with resistant starch (RS) and enzymes was evaluated. Dough was formulated with 12.5 g/100 g of RS and 4 mg/100 g of a mixture of enzymes, glucose-oxidase (Gox), tranglutaminase (TG) and xylanase (HE) in proportions according to a three-component mixture design of experiments. Dough was mixed in a large-scale dynamic rheometer measuring instant torque and speed in real time through a personal computer (PC) interface. Maximum torque during mixing and parameters of the dough development curves obtained from rheofermentometer were fit to mathematical models within 95 % of confidence. Gox and TG showed positive effects on the maximum height of dough, while HE showed a negative one. Also, it was found that Gox and TG in the presence of HE could be important for reducing dough weakening.Fil: Altuna, Luz. Universidade de Sao Paulo; BrasilFil: Romano, Roberto C. O.. Universidade de Sao Paulo; BrasilFil: Pileggi, Rafael G.. Universidade de Sao Paulo; BrasilFil: Ribotta, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Ciencia y Tecnología de Alimentos Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Ciencia y Tecnología de Alimentos Córdoba; ArgentinaFil: Tadini, Carmen C.. Universidade de Sao Paulo; Brasi

Effect of a combination of enzymes on the fundamental rheological behavior of bread dough enriched with resistant starch

The effect of three enzymes on the fundamental rheological parameters of bread dough with high content of resistant starch (RS) was studied. The RS was added as an alternative to increase the fiber ingestion while the enzymes, to overcome the gluten dilution. Optimum dough was formulated with partial substitution of wheat flour by RS (12.5 g/100 g) and enzymes transglutaminase (4 mg/100 g), glucose oxidase (2.5 mg/100 g) and xylanase (0.5 mg/100 g). Dough produced with RS and without enzymes was considered as control and dough without RS or enzymes was considered as regular for comparison. Fundamental rheological parameters were obtained from uniaxial extension, biaxial extension and oscillatory tests. Also, starch gelatinization and retrogradation were studied by differential scanning calorimetry. The partial replacement of WF by RS resulted in less extensible dough, whereas the addition of enzymes increased the strain hardening index allowing higher dough expansion. The addition of enzymes reduced the elastic modulus resulting in a behavior similar to the regular dough. RS was not gelatinized during baking, hence it can be considered as dietetic fiber. Wheat starch retrogradation after 7 days of storage was observed, indicating bread aging.Fil: Altuna, Luz. Universidade de Sao Paulo; BrasilFil: Ribotta, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Ciencia y Tecnología de Alimentos Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Ciencia y Tecnología de Alimentos Córdoba; ArgentinaFil: Tadini, Carmen C.. Universidade de Sao Paulo; Brasi

Improving the design and operation of a tweedy dough mixer

Compared with other cereals, wheat is special because the dough that it makes, when mixed with water and other ingredients, has the following unique properties: 1. It forms a viscoelastic material. 2. It has good gas retention since the diffusion of gases through the dough is small. 3. It sets when cooked to form a solid foam. In the study of dough rheology, mixing and baking, each of these properties generates the need for different types of mathematical considerations. For the Goodman Fielder problem presented at the 1997 Mathematics-In-Industry Study Group (MISG) meeting at Melbourne University, it is the first of these three properties which plays the crucial role in any study of the efficiency of the mixing of wheat flour dough. The group studied the mechanics associated with the mixing of a large 300 kg dough mass within a Tweedy mixer rotating at 360 rpm subject to a cycle time of 4 minutes and concluded: 1. The baffles along the side of the mixing chamber are essential for the elongation strains necessary for dough development. 2. The impeller blades should have a circular rather than rectangular cross section to reduce the stress concentrations in the viscoelastic dough mass that lead to a cutting rather than stretching motion. 3. A series of experimental tests needs to be performed to study the effects of: baffle geometry; mixing speed; and recirculating motions within the mixing chamber

Research Into Technological Indicators of a Rye-wheat Dough Semi-finished Product with the Addition of the Polyfunctional Food Supplement "Magnetofооd"

We studied influence of the polyfunctional food supplement "Magnetofооd" on the technological parameters of rye-wheat dough semi-finished product and the finished product. A positive effect of the supplement "Magnetofооd" on the technological parameters of dough and the bread baked using it, is shown. It was established that adding the food supplement "Magnetofооd" in the amount of 0.15 % of the weight of flour reduces dough fermentation time by 13.0 on average %. The introduction of the food supplement "Magnetofооd" also increases the yield of a dough semi-finished product by 2.9 % on average and improves the yield of the finished product by 3.45 % on average. It was revealed that the multifunctional food supplement "Magnetofооd" enhances the quality of rye-wheat dough semi-finished product and the finished product due to its capacity of moisture retention and the inhibition of hydrolysis processes of the basic ingredients of dough.The obtained experimental data could be used to develop a technology of rye-wheat bread, enriched with the polyfunctional food supplement "Magnetofооd"

Investigation of the Influence of Flaxseed Meal on the Biochemical Processes of the Wheat Test

One of the well-known tasks in the organization of nutrition is the development of new bakery products with high nutritional and biological value and wellness properties.Linen meal is an important source of dietary fiber, high protein, unsaturated fatty acids, minerals and vitaminsThe purpose of the research was to determine the effect of this meal on the depth of the processes occurring in the dough during kneading and maturing.A linseed meal LLC «Zhytomyrbioproduct» (Ukraine) with a certain chemical composition was used in the research.The research was conducted to study the effect of flaxseed meal on the kinetics of sugars in the dough during its maturation. The study was performed using an iodometric method, based on the determination of the amount of oxidized copper before and after recovery of the alkaline copper solution with sugar.It has been established, that the addition of flax seed meal to the dough reduces the amount of sugars, formed during the maturation of the dough, which adversely affects the activity of the dough microflora. This is confirmed by the lower consumption of sugars for fermentation.The viscosity of water-flour slurry with a flaxseed meal has been investigated. The starch grains are infinitely swollen in the process of increasing temperature of the slurry in the amylograph, and a starch paste is formed, the viscosity of which increases with temperature. At the same time, under the action of flour enzymes, there is a decrease in viscosity due to the hydrolysis of starch.The results of the researches testify about the effectiveness of the offered methods of studying the rules and depth of processes in the dough with a meal of flax seed during its preparation and maturing, which will allow to increase the yield of the dough and the output of high quality finished products

The Study of Influence of Aronia Additives on Functional-technological Properties of Wheat Flour

The expedience of the use of aronia in technology of short dough products as a source of vitamins, mineral, pectin substances, phenol compounds, easily assimilated sugars, organic acids and so on was substantiated. To study the influence of aronia additives on the main receipt component of short dough (wheat flour) there was elaborated an algorithm of the study that includes theoretical analysis and physical-chemical experiment. The expedience of introduction of aronia as a powder directly into wheat flour was theoretically grounded. The methods of estimation of the content of polyphenol compounds, influence of aronia additives on amylolytic and proteolytic activity of wheat flour, its sugar-creating ability, were selected. The methods of experiment planning and mathematical processing of experimental data were realized using computer program MS Excel 97 2003.In was established, that the aronia additive weakens the gluten of wheat flour and prevents the swelling of gluten proteins. It positively influences the process of short dough formation and provides a possibility of its storage during the long time until baking. The use of aronia additives in technology of short dough products allows not only raise their food value but also improve the quality of short dough

Research of Rational Concentration of Oilseed Crops Meals in the Sandy Dough Semi-finished Product

The work studies the rational concentration of meals of soya, sunflower and milk thistle in a sandy dough semi-product for improving healthy properties of ready products (biological value, stomach peristalsis, metabolism, saturation with vitamins and mineral substances). Analytic studies were conducted and advantages of using meals in dough products were determined. The chemical composition of meals was determined, and the optimal composition for satisfying the human need that is in ratio 3:4:3 was calculated. The quality of meals was estimated, and their organoleptic parameters were analyzed. The sensor analysis of sandy semi-products of oilseed crops meals was realized. It was established, that adding of the meal composition instead of flour in amount 20 % is an optimal solution for using in a sandy dough semi-product.There was established the influence of meals of oilseed crops on organoleptic parameters of developed sandy semi-products. Advantages and defects of using the aforesaid meals were established. Ways of improving the outlook and consistence of shortcakes were offered. Ways of further studies were established

Investigation of the Efficiency of Use of Polycomponent Acidifiers in the Technology of Rye- Wheat Bread

The polycomponent acidifiers “Optimal 1” and “Optimal 2” were elaborated at the National University of food technologies (Kyiv city, Ukraine) for intensifying the technology of rye-wheat bread and prolongation of its freshness.The composition of acidifiers includes the enzymatic preparations (EP) Glusim 10000 Mono (glucose oxidase) that favors the improvement of structural-mechanical properties of dough, EP Pentopan 500 BG (mixture of pentosanase and hemilcellulase) that favors the modification of non-starched polysaccharides and provides elastic crumb. For providing the proper dough acidity and intensification of the process of dough fermentation, the acidifier composition is added with citeric acid and dry milk serum (DMS), and for improving organoleptic parameters – with rye fermented malt (RFM). For increasing dough water-absorbing ability and keeping products\u27 freshness in the process of storage, guar gum is added.The optimal dosage of PCA “Optimal 1” and “Optimal 2” in the recipe of rye-wheat bread is 2 % to the flour mass.There are considered technological aspects of acidifiers use. There are considered processes, connected with stalling, loss of organoleptic and physical-chemical parameters of the bread quality at storage. The positive effect of acidifiers on the parameters of crumbling and swelling of bread crumb at the accelerated technology of its preparation. It was established, that the use of acidifiers favors the deceleration of rye-wheat bread staling. There was obtained the positive influence of acidifiers on preserving smell and taste of ready products. The obtained results prove the expedience of using the elaborated polycomponent acidifiers “Optimal 1” and “Optimal 2” in the technology of rye-wheat bread at its accelerated preparation. The use of the elaborated acidifiers favors the shortening of the technological process of rye-wheat bread production in 2,5-3 times and provide freshness, taste and smell preservation in ready products

Study of the Influence of Meals of Wheat and Oat Germs and Wild Rose Fruits on the Fermenting Microflora Activity of Rye-wheat Dough

The aim of the research was to study an influence of meals of wheat germs (WGM) and oat germs (OGM) in amount 10…20 %, and also ones of wild rose fruits (WRFM) in amount 2…6 % of the total mass of flour on the fermenting microflora of rye-wheat dough; and also to establish an influence of the experimental supplements on main microbiological processes in it.It has been established, that adding experimental meals favors the activation of bakery yeast. At introducing WGM, OGM and WRFM, its lifting force grows by 16.0–54.0, 6.0–18.0, 10.0–44.0 % respectively, and zymase and Maltase activity – by 16.0–53.3, 6.0–17.7 and 11.1–44.0 % and 18.8–55.0, 6.3 31.3 and 7.5–25.0 % respectively. It has been established, that there also takes place the activity increase of lactate bacteria in rye-wheat dough with adding meals of wheat, oat germs and wild rose fruits. It is possible at the expanse of adding an additional nutritive medium with the supplements.Such action of enriching raw materials on the microflora favors intensification of alcoholic and lactate fermentation that is established by data of acid accumulation and gas formation in rye-wheat dough. The counted indices at introducing WGM, OGM, WRFM increase by 39.0, 27.8, 33.9 % and 18.2, 13.6, 16.7 % respectively