Розроблено технологію житньо-пшеничного хліба «Харківський родничок» з додаванням поліфункціональної харчової добавки «Магнетофуд». Досліджено якісні показники житньо-пшеничного тіста та готового виробу, збагачених харчовою добавкою «Магнетофуд». Встановлено, що введення добавки в кількості 0,15 % до маси борошна зменшує час бродіння тіста на
Обґрунтовано механізми вологоутримуючої здатності наночасток (НЧ) поліфункціональної харчової добавки «Магнетофуд» в житньо-пшеничному тісті. Розглянуто механізми взаємодії НЧ харчової добавки «Магнетофуд» з водою у середовищах з різним Рh, а також механізми взаємодії НЧ «Магнетофуд» з іоногеннимі групами білків, ліпідів, вуглеводів житньо-пшеничного борошна. Запропонована «кластерно-петельно-ланцюгова» модель взаємодії харчової добавки «Магнетофуд» з біополімерами житньо-пшеничного борошна Ключові слова: поліфункціональна харчова добавка, борошно житньо-пшеничне, механізм взаємодії, «кластерно-петельно-ланцюгова» модель Обоснованы механизмы влагоудерживающей способности наночастиц (НЧ) полифункционального пищевой добавки «Магнетофуд» в ржано-пшеничном тесте. Рассмотрены механизмы взаимодействия НЧ пищевой добавки «Магнетофуд» с водой в средах с различным Рh, а также механизмы взаимодействия НЧ «Магнетофуд» с ионногенними группами белков, липидов, углеводов ржано-пшеничной муки. Предложенная «кластерно-петельно-цепочечная» модель взаимодействия пищевой добавки «Магнетофуд» с биополимерами ржано-пшеничной муки Ключевые слова: полифункциональная пищевая добавка, мука ржано-пшеничная, механизм взаимодействия, «кластерно-петельно-цепочечная» модель
The moisture-retaining power (WRP) of dough is one of main functional technological parameters, because it influences the output, structural-mechanical properties and quality characteristics of bread and bakery products. For increasing WRP of rye-wheat dough, the polyfunctional food supplement “Magnetofood” is offered. For determining, what component of rye-wheat dough plays the leading role in absorbing and retaining water – there was studied the influence of the polyfunctional food supplement “Magnetofood” on water-absorbing and water retaining power of rye-wheat gluten and rye-wheat flour. It was established, that adding the food supplement “Magnetofood” in amount 0,15 % for the mass of rye-wheat gluten and rye-wheat flour increases their water-retaining power by 2,0 % and by 2,5 % respectively. There were studied water binding forms in gluten and flour at implementing the food supplement “Magnetofood” by the indicator method and one of differential-thermal analysis (DTA). There were established the quantity ratios of free and bound moisture in gluten and flour with food supplement “Magnetofood”. It was established, that model systems, based on rye-wheat gluten and rye-wheat flour, enriched with “Magnetofood” supplement, demonstrate the increase of the amount of free and bound moisture in 1,3 and in 0,35 times in experimental samples of model systems based on gluten, respectively; in 1,2 and 0,29 times in experimental samples of model systems, based on flour, respectively. DTA method established the increase of the total content of adsorptively and osmotically bound moisture in experimental samples of model systems based on rye-wheat gluten and rye-wheat flour at adding the food supplement “Magnetofood”: – adsorptively bound moisture grows: from 15, 3% to 19,7% (samples of model systems based on rye-wheat gluten) and from 18,3% to 25,4% (for samples of model systems based on rye-wheat flour); – osmotically bond water grows: from 10, 3% to 14, 4% (for samples of model systems based on rye-wheat gluten) and for 14,5% to 17,0% (for samples of model systems based on rye-wheat flour). It was revealed, that the increase of the moisture-retaining power of rye-wheat gluten and rye-wheat flour, enriched with the food supplement “Magnetofood” is explained by the “cluster-loop-chain” model of hydration of gluten proteins at “Magnetofood” nanoparticles. The obtained experimental data may be used at elaborating the technology of rye-wheat bread, enriched with the polyfunctional food supplement “Magnetofood”; and also at elaborating innovative technologies of food systems with proteins as gliadin, glutenin and so on. The results of this study have the theoretical and practical interest for the world scientific society, because they may be used for decelerating hardening processes, prolongation of storage terms, increase of output and improvement of quality parameters of bread and bakery products.
The influence of the polyfunctional food additive "Magnetofood" on the yield, batching, shrinkage, as well as physicochemical, microbiological, organoleptic parameters of wheat–rye bread" Kharkiv Rodnichok " enriched with this additive was investigated. The introduction of the food additive "Magnetofood" helps to increase the biological value (the content of the microelement of Fe is increased by 3 mg / 100 g), the energy value (increases by 3 kcal / 100 g) and the storage period (grows by 12 hours) in the experimental bread samples " Kharkiv Rodnichok " compared with the control (wheat–rye bread "Darnitsky"). That is, the food supplement "Magnetofood" due to Fe2 + can be recommended as an antioxidant and a source of easily digestible iron and an anti–anemia agent. It has been experimentally established that the introduction of the polyfunctional food additive "Magnetofood" improves the yield and quality of wheat–rye bread. In addition, the quality of bread is influenced by the way of introduction of "Magnetofood": when introducing "Magnetofud" in the form of an oil suspension (CHI), the indices are 1–2% better than when adding the additive as a dry powder. It also follows from the data obtained that the physicochemical parameters of the experimental bread samples " Kharkiv Rodnichok " are improved in comparison with the control (Bread "Darnitsky") as follows: yield, bake, shrinkage, porosity of crumb are increased by 2–3%, 5–10 %, 5–10%, 3–6% respectively; and the crumb humidity and acidity decrease by 1% and 1.0– 1.5 °, respectively. Microbiological studies have shown that seeding Вас. subtilis after 10 days will increase: in control 2 times, and in the samples of bread "Kharkov fontanel" 1, 2 – in 1,3 times. That is, "Magnetofood" has an antimicrobial effect, which leads to better quality, preservation of freshness and lengthening the shelf life of bakery products. Thus, the introduction of the polyfunctional food additive "Magnetofood" in wheat–rye bread improves yield, quality and shelf life.
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".
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