Changes in the plastic strength of the glaze during storage of glazed confectionery

2021 ◽  
pp. 54-58
Author(s):  
Николай Борисович Кондратьев ◽  
Егор Валерьевич Казанцев ◽  
Максим Владимирович Осипов ◽  
Евгения Станиславовна Калинкина ◽  
Элла Витальевна Мазукабзова

Выявлены закономерности изменения жирнокислотного состава и пластической прочности модельных образцов глазированных конфет в процессе хранения. В ряду орехового сырья миндаль-кешью-фундук-арахис скорость уменьшения пластической прочности глазури конфет с корпусами на основе фундука и арахиса с использованием глазури лауринового типа составила 71-87 г в неделю, что на 30-40 % больше скорости уменьшения пластической прочности глазури конфет с корпусами на основе миндаля и кешью 42-46 г в неделю. Использование глазури с высоким содержанием элаидиновой кислоты позволяет уменьшить скорость изменения пластической прочности глазури на 23-29 %, по сравнению с глазурью на основе жира лауринового типа. Наименьшее изменение пластической прочности поверхности глазированных конфет (2,8 % в неделю) достигнуто для корпусов из пралиновой массы на основе миндаля и глазури, изготовленной на основе жира с высоким содержанием трансизомеризованных ненасыщенных кислот. Предложенный подход можно использовать для количественной оценки и прогнозирования скорости процессов миграции жиров в процессе хранения глазированных кондитерских изделий. Regularities of changes in fatty acid composition and plastic strength of model samples of glazed sweets during storage have been revealed. In the row of nut raw materials almonds-cashews-hazelnuts-peanuts, the ratio of the rate of decrease in the plastic strength of the glaze of candies with bodies based on hazelnuts and peanuts using lauric-type glaze was 71-87 g per week, which is 30-40% more than the rate of decrease in the plastic strength of the glaze sweets with almond and cashew-based bodies 42-46 g per week. The use of a glaze with a high content of elaidic acid can reduce the rate of change in the plastic strength of the glaze by 23-29 %, as compared to a glaze based on lauric fat. The smallest change in the plastic strength of the surface of glazed sweets (2.8 % per week) was achieved for bodies made of praline mass based on almonds and glaze made on the basis of fat with a high content of trans-isomerized unsaturated acids. The proposed approach can be used to quantify and predict the rate of fat migration processes during storage of glazed confectionery products.

2021 ◽  
Vol 30 (11) ◽  
pp. 34-39
Author(s):  
G.V. Posnova ◽  
◽  
N.G. Ivanova ◽  
I.A. Nikitin ◽  
G.A. Shinov ◽  
...  

The article presents the results of research on the development of the technology of biscuits using non-traditional plant raw materials. In the course of the work, the replacement of a part of the premium wheat flour in the dairy crust recipe with a mixture of rice (17%) and sesame (11%) and the replacement of butter with camelina butter in an amount of 5% by weight of the product was justified. It was found that the introduction of functional raw materials gives the products a moderately sweet milk taste with a pleasant nutty aftertaste and orange color. The resulting products are characterized by a balanced fatty acid composition of ω-3 and ω-6, enriched with minerals and vitamins. Calculation of the nutritional value showed that the consumption of 100 g of the developed biscuits covers the daily need of an adult for polyunsaturated fatty acids of the ω-3 and ω-6 families by 37–75% and 19,4–31,5, respectively. The protein content rises by 1,5 times, and the carbohydrate content decreases by 1,16 times. At the same time, the degree of satisfaction of the daily requirement for potassium increases – by 2,3%, in calcium – by 7–7,5%, in phosphorus – by 12,6%, in magnesium – by 16,3%, in iron – by 7,3–13,3%. The degree of satisfaction of the daily requirement for vitamins B1 also increases – by 19,7–20,9%, B2 – by 2,2–2,3%, PP – by 8,1–9,3%, E – by 1,6–1,7% compared to the control sample of dairy cakes. The developed products can be recommended for preventive nutrition, people adhering to a healthy lifestyle, as well as school-age children, pregnant and lactating women who have a deficiency of ω-3 and ω-6 fatty acids in the diet


2021 ◽  
Vol 34 (1) ◽  
pp. 34-41
Author(s):  
Viktoriia O. Pinkevych ◽  
Moeen F. Dababneh ◽  
Nadiia Ye. Burda ◽  
Iryna O. Zhuravel

Abstract Introduction. With due consideration of the properties of fatty acids, as well as their importance for normal life activity and human development, research into the fatty acid composition of poorly studied plants and the search for new domestic plant sources of polyunsaturated fatty acids is a mainstream trend in modern pharmacy. Aim. Aim of research – determination of fatty acid qualitative composition and content in threshed grass, stalks, roots and seeds of Night-scented stock ‘Queen of Night’ and ‘Evening Scent’ cultivars as grown in Ukraine. Methods. Gas chromatography. Results. Both cultivars of Night-scented stock taken for analysis had similar fatty acid composition – 5 saturated, 5 (4 for seeds) monounsaturated and 2 polyunsaturated fatty acids, Quantitatively, in all tested parts of the herb polyunsaturated and monounsaturated fatty acid dominated, making in total 88.92% and 88.62% in the seeds of Queen of Night and Evening Scent cultivars, respectively, and averaging 65% in other parts of the tested cultivars. Linolenic and linoleic acids prevailed among the polyunsaturated fatty acids, whereas oleic acid prevailed among the monounsaturated. Conclusion. Night-scented stock can be utilized as a source of polyunsaturated fatty acids for the development of drugs and for standardization of tested raw materials.


2021 ◽  
pp. 56-59
Author(s):  
Лев Арсенович Оганесянц ◽  
Александр Львович Панасюк ◽  
Елена Ивановна Кузьмина ◽  
Дмитрий Александрович Свиридов ◽  
Михаил Юрьевич Ганин

Продукты масложировой промышленности играют важную роль в формировании рациона питания человека. При этом особое внимание отводится растительным маслам ввиду их высокой физиологической ценности. На сегодняшний день достаточно остро стоит вопрос о способах их идентификации. В связи с тем, что стоимость растительного масла в значительной степени обуславливается выбором сырья, наиболее распространенным видом фальсификации является внесение недобросовестными производителями в готовую продукцию более дешевых видов масел. Приведен анализ современных способов идентификации растительных масел из различного сырья. До настоящего времени метод газожидкостной хроматографии являлся основным при выявлении примесей посторонних жиров в продукции по ее жирнокислотному составу. Также для выявления фальсификатов могут быть использованы такие инструментальные методы, как ЯМР-спектроскопия, ИК-спектроскопия, а также метод изотопной масс-спектрометрии, который является наиболее перспективным. Особый научный интерес представляет идентификация растительных масел по их географическому месту происхождения. Основываясь на анализе литературы, показано, что наибольшее распространение при установлении региональной принадлежности масел получили исследования, направленные на изучение изотопных характеристик углерода (13С/12С), кислорода (18O/16O) и водорода (2H/1H) элементов, входящих в состав продукта, а также его жирнокислотного состава. Описаны преимущества комплексного подхода исследований, включающего в себя создание массива данных, состоящего из значений различных показателей, и его глубокий анализ с использованием статистических методов анализа. Математическая модель может быть усилена данными элементного профиля масла, изотопных характеристик отдельно взятых жирных кислот или содержанием фенольных соединений. Products of the fat and oil industry play an important role in shaping human diet. At the same time, special attention is paid to vegetable oils in view of their high physiological value. Today, the question of how to identify them is quite acute. Due to the fact that the cost of vegetable oil is largely determined by the choice of raw materials, the most common falsification type is the introduction of cheaper oils types into finished products by unscrupulous manufacturers. The authors provide an analysis of modern methods for identifying vegetable oils from various raw materials. It has been shown that the gas-liquid chromatography method is the main one in identifying products by their fatty acid composition and makes it possible to establish the presence of foreign fats impurities. Also, methods of isotope mass spectrometry, NMR spectroscopy, IR spectroscopy and electrophysical methods of analysis can be used to detect counterfeits. Of particular scientific interest is the vegetable oils identification by their geographical place of origin, which is very important for some countries of the European Union. Based on the analysis of literature, it has been shown that the most widespread in the regional oils affiliation establishing are researches aimed at researching the isotopic characteristics of carbon (13C/12C), oxygen (18O/16O) and hydrogen (2H/1H) of the elements that make up the product, and also its fatty acid composition. The advantages of an integrated research approach are described, including the creation of a data array consisting of the values of various indicators and its in-depth analysis using statistical analysis methods. The mathematical model can be strengthened by data on the elemental profile of the oil, isotopic characteristics of individual fatty acids, or the content of phenolic compounds.


Vestnik MGTU ◽  
2020 ◽  
Vol 23 (3) ◽  
pp. 260-267
Author(s):  
A. A. Efremova ◽  
V. S. Lyulkovich ◽  
N. L. Naumova

The triglyceride composition of the fat base of margarine used in the technology of flour confectionery products (FCP) includes up to 70 % monounsaturated acids, up to 25 % saturated ones. It has been established that for a more complete assimilation of FCP, a fat-intensive product should contain these fatty acids in equal proportions and should not contain trans-isomers of fatty acids, the main source of which are partially hydrogenated vegetable oils. Trans fats contained in margarines can cause the development of many diseases. It is known that the fat of sunflower flour is represented by unsaturated acids: linoleic (≈70 %) and oleic (≈18 %), which are of great physiological importance. The aim of the research was to optimize the fatty acid composition of cottage cheese bagel through the use of flour from sunflower seeds. The nutritional value of raw materials has been investigated. Tests of several variants of modification of cottage cheese bagel recipe in the process of baking laboratory samples have shown the advantage of sunflower flour in comparison with wheat flour in terms of the amount of fat, proteins, dietary fiber. The possibility of replacing 15 % of wheat flour with flour from sunflower seeds with a decrease in margarine by 19.8 % in bagel technology has been established. The product of the modified prescription composition contain more polyunsaturated fatty acids (by 28.4 %), of which linoleic - by 29.9 %, γ-linolenic - by 50 %, docosahexaenoic - by 20 %, eicosatrienic - by 35 %; less saturated fatty acids (by 6.2 %), of which caprylic - by 14.0 %, lauric - by 13.9 %, capric - by 10.7 %, myristic - by 9.6 %, butyric - by 9.1 %, palmitic - by 6.7 %; fewer transisomers of fatty acids (by 8.7 %), of which transisomers of oleic acid - by 9.6 %, linolenic - by 33.3 %. The proposed development has good consumer properties, and is characterized by a high content of protein (by 11.6 %) and dietary fiber (by 7.2 %).


Food Industry ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 26-32
Author(s):  
Ekaterina Reshetnik ◽  
Elena Utochkina

The article concerns the specifics of combining in the formulation animal and vegetable raw materials in order to create a food product with a balanced amino acid and fatty acid composition. It presents the results of studying the influence of plant and animal components on the quality indicators of the fermented product. During preliminary tests a man revealed the mixture composition as the basis for the fermented product: the milk component – skimmed milk; the vegetable component – soy food base; polysaccharide (arabinogalactan). The authors used standard methods of research and data processing for a comprehensive quality assessment of a protein cluster obtained during milk-vegetable mixture fermentation. According to the research results, they determined the organoleptic, physical and chemical, microbiological and biochemical characteristics of the product. A man concluded that the soy food base as one of the mixture components influenced the product taste and smell; arabinogalactan had a positive effect on the number of viable cells of lacto - and bifidobacteria and on the moisture-retaining ability of the resulting protein cluster. The quantitative and qualitative content of essential and non-essential amino acids in the product indicated its amino acid composition balance. The fatty acid composition is represented by saturated, monounsaturated and polyunsaturated fatty acids in an optimal ratio. The results analysis of a comprehensive quality assessment indicates the possibility of using a milk-vegetable mixture as a basis for the fermented products development.


2017 ◽  
Vol 169 (2) ◽  
pp. 38-42
Author(s):  
Marta AMBROSEWICZ-WALACIK ◽  
Małgorzata TAŃSKA ◽  
Marek WALACIK

The aim of the study was to show the validity of determining the quality of oils intendent for the biofuels production. One of the main discriminant that should be used to assess the suitability of oil raw materials for the fuel purposes is the composition of fatty acids. The research was conducted on 13 different samples of vegetable oils, that were cold-pressed from the seeds of various species, including rape, camelina, flax (light and dark), mustard, milk thistle, hemp, evening primrose oil, amaranth, sunflower, soybean, and cumin. The analysis of the fatty acid composition showed significant differences between the analysed oil samples, both within the species and varieties of oilseeds. The results indicate the need for continuous quality control of oils and fats led to the production of biodiesel in the small households and large commercial enterprises, because as it was indicated by the analysis of fatty acids composition rape seeds of different varieties are characterized by the diverse quality.


2020 ◽  
Vol 19 (2) ◽  
pp. 180-186
Author(s):  
Tainara Costa ◽  
Carolina Médici Veronezi ◽  
Neuza Jorge

This paper aims to determine the content of bioactive substances of lipid fractions extracted from Bertholletia excelsa, Lecythis pisonis and Dipteryx lacunifera, in by the interest of better identifying the quality of these raw materials. Proximate composition of nuts was determined by official methods and total carbohydrate was calculated by difference. The oils were extracted from the nuts by cold pressing and analyzed for fatty acid composition, tocopherols, phytosterols and total carotenoids and phenolics compounds. The fatty acid composition of oil extracted from L. pisonis was more unsaturated compared with others oils. L. pisonis oil showed to be richer in total tocopherol and γ-tocopherol, moreover showed considerable total phytosterol and carotenoid amounts, thus representing an important source of vitamins A and E. The oils showed significant content of phenolic compounds, with the exception of the oil extracted from D. lacunifera. The study revealed that the oils from Brazilian nuts contain bioactive compounds in relevant quantities, L. pisonis oil standing out. This fact favors their use for food and, as raw material in chemical, pharmaceutical and cosmetic industries, adding value to products derived from these oils, increasing the viable sources of raw materials.


2019 ◽  
Vol 13 (3) ◽  
Author(s):  
S. Lehnert ◽  
О. Khomenko ◽  
A. Dubinina ◽  
V. Vinnikova ◽  
L. Tatar

The article characterizes the peanut (Arachis hypogaea) as an oilseed crop widely spread in the world. It describes its biological value as well as the chemical and fatty acid composition. The study proves the practical importance of developing and introducing new blended functional purpose oils for Ukrainian people. It has been shown that blended oils contain significant amounts of monounsaturated and polyunsaturated fatty acids. The use of blended oils will correct the deficiency of essential fatty acids in the diet of our country’s population. It has been pointed out how promising it is to create new types of blended oils, with a balanced fatty acid composition, by combining peanut and linseed oils. The article describes the characteristics of the new blended peanut-linseed oils with additives made from vegetable raw materials. The evaluated parameters are the quality and safety of the new blended peanut-linseed oils with a garlic extract, rosehip extract, sorrel leaf extract, and black currant leaf extract. The fatty acid composition of the fat in the new blended oils has been studied to determine their quality. The safety assessment of the new oils with the additives from vegetable raw materials has been determined by the content of pesticides (HCH-gamma isomer, heptachlor, and DDT), mycotoxins (aflotoxin B1 and zearalenone), toxic elements (lead, cadmium, arsenic, mercury, and zinc), iron, and radionuclides (cesium-137 and strontium-90). The results obtained confirm that the new blended oils are safe. The blended oils have a high biological value when the ratio of w-6 to w-3 fatty acids is 4.9:1, and the ratio of monounsaturated fatty acids to polyunsaturated fatty acids is 1:1, which meets the standards of healthy nutrition. In terms of chemical and radiation safety, the new oils do not exceed the maximum permissible concentrations, confirming the safety of the newly developed oils.


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