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  • Ескіз
    Документ
    The influence of whey protein isolate on the quality indicators of acidophilic ice cream based on liquid concentrates of demineralized whey
    (2024) Mykhalevych, Artur; Buniowska-Olejnik, Magdalena; Polishchuk, Galyna; Puchalski, Czesław; Kaminska-Dwórznicka, Anna; Berthold-Pluta, Anna
    The use of liquid whey concentrates in the composition of ice cream, especially in combination with other powdered whey proteins, is limited due to their understudied properties. This article shows the main rheological and thermophysical characteristics of ice cream mixes, as well as color parameters, microstructure, analysis of ice crystals and quality indicators of ice cream during storage. The most significant freezing of free water (p ≤ 0.05) was observed in the temperature range from the cryoscopic temperature to −10 ◦C. The microscopy of experimental ice cream samples based on hydrolyzed whey concentrates indicates the formation of a homogeneous crystalline structure of ice crystals with an average diameter of 13.75–14.75 µm. Microstructural analysis confirms the expediency of using whey protein isolate in ice cream, which ensures uniform distribution of air bubbles in the product and sufficient overrun (71.98–76.55%). The combination of non-hydrolyzed whey concentrate and 3% whey protein isolate provides the highest stability to preserve the purity and color intensity of the ice cream during storage. The produced ice cream can be classified as probiotic (number of Lactobacillus acidophilus not lower than 6.2 log CFU/g) and protein-enriched (protein supply from 15.02–18.59%).
  • Ескіз
    Документ
    Study of water freezing in low-fat milky ice cream with oat β-glucan and its influence on quality indicators
    (2023) Buniowska-Olejnik, Magdalena; Mykhalevych, Artur; Polishchuk, Galyna; Sapiga, Victoria; Znamirowska-Piotrowska, Agata; Kot, Anna; Kaminska-Dwórznicka, Anna
    The work is devoted to the study of the functional and technological properties of oat β-glucan in low-fat milky ice cream (2% fat) in comparison with the stabilization system Cremodan® SI 320. β-glucan (0.5%) has a greater effect on the cryoscopic temperature of ice cream mixes than Cremodan® SI 320 in the same amount (decrease by 0.166 ◦C vs. 0.078 ◦C), which inhibits the freezing process of free water in ice cream during technological processing in the temperature range from −5 to −10 ◦C. Microscopy of ice cream samples after freezing and hardening shows the ability of β-glucan to form a greater number of energy bonds due to specific interaction with milk proteins. Analysis of the microstructure of ice cream samples during 28 d of storage confirms the ability of oat β-glucan to suppress the growth of ice crystals more effectively than Cremodan® SI 320. Oat β-glucan gives ice cream a rich creamy taste, increases overrun and resistance to melting, which brings this type of frozen dessert closer to a full-fat analogue (10% fat).
  • Ескіз
    Документ
    Development of a new type of alcoholic ice cream
    (2021) Kochubei-Lytvynenko, Oksana; Polishchuk, Galyna; Osmak (Fedchenko), Tetiana; Bass, Oksana; Mykhalevych, Artur; Bandura (Kuzmyk), Uliana
    The modern range of milk-based ice cream with an alcohol component was analyzed. The choice of alcoholic tincture in the composition of milk ice cream was substantiated. The cryoscopic temperature of the mixtures was determined using a measuring complex, the dynamic viscosity was determined by a Heppler viscometer, the melting resistance was determined by the melting time of the hardened ice cream samples, and the ice cream was whipped by the weight method. The possibility of using tinctures with an alcohol content of 20% as a part of milk ice cream has been scientifically confirmed. The selection of the structure stabilizer and rational modes of maturation of milk-alcohol mixtures were substantiated by the values of the coefficient of dynamic viscosity. According to the cryoscopic temperature of ice cream mixtures, it was found that the production of ice cream with a mass fraction of alcohol up to 3% determines the possibility of using conventional freezing modes to obtain a product of guaranteed quality. A new type of milk ice cream with the use of tinctures can be recommended for the introduction of the classical technological scheme of production with the clarification of maturation modes.
  • Ескіз
    Документ
    Study of vegetable raw materials influence on cryoscopic temperature and the content of free and bound moisture in milk-vegetable blends
    (2019) Sapigа, Victoria; Mykhalevych, Artur; Polishchuk, Galyna; Osmak (Fedchenko), Tetiana
    In recent years in Ukraine, a group of structured dairy based dessert products (ice cream, mousse, creams, sambukes, etc.) are particularly popular among consumers . Such food systems require the obligatory content of stabilizers and stabilization systems: starches, gums, pectins, proteins, sulfated polysaccharides, their composite mixtures and integrated complexes with emulsifiers. This results, on the one hand, in increasing the cost price of the finished product, since most of these nutritional supplements do not produce domestic enterprises, and on the other hand, such compounds and their mixtures, mostly chemically modified and synthesized, not only do not affect the nutritional value of finished products, but also have some restrictions for the application. Therefore, a promising trend is to expand the range of ice cream on the basis of natural functional and technological raw materials of vegetable origin, in particular vegetable.
  • Ескіз
    Документ
    Studies of water freezing features in ice cream with starch syrop
    (2019) Polishchuk, Galyna; Sharahmatova, Tetiana; Breus, Natalia; Bass, Oksana; Shevchenko (Kishenko), Iryna
    The purpose of the study is to research the process of water freezing in new types of ice cream with starch syrup at certain stages of the technological process. Starch syrup as a degradation product of corn starch is characterized by different values of the dextrose equivalent (DE). Starch syrup is a source of solids, sweetener, cryoprotectants (at high DE) and thickener (for low values of DE). The starch syrups with fundamentally different functional and technological properties are chosen for the study: high glucose-fructose syrup HGFS-98 (DE = 98) and low-sugar starch syrup GFS-30 (DE = 30).
  • Ескіз
    Документ
    Scientific explanation of the composition and technological modes of manufacture of dairy ice cream with vegetable puree
    (2019) Sapigа, Victoria; Polishchuk, Galyna; Osmak (Fedchenko), Tetiana; Mykhalevych, Artur; Maslikov, Maxim
    The modern assortment of ice cream on milk base with vegetable fillers has been analyzed. The choice of vegetable raw material as a promising functional and technological ingredient in composition of milk ice cream is substantiated.Object ofresearch - ice cream technology. The subject of the study - vegetable puree from beet and broccoli fresh and heat-treated, ice cream and milkvegetable blends. The cryoscopic temperature of the blends was determined with the aid of a measuring complex,dynamic viscosity by Geppler viscometer, resistance to melting - the melting time of hardened ice cream samples, the air bubbles size - the microscopy of soft ice cream samples in the chamber Goryaev, ice cream overrun - by the weight method.Object ofresearch - ice cream technology. The subject of the study - vegetable puree from beet and broccoli fresh and heat-treated, ice cream and milkvegetable blends. The cryoscopic temperature of the blends was determined with the aid of a measuring complex, dynamic viscosity by Geppler viscometer, resistance to melting - the melting time of hardened ice cream samples, the air bubbles size - the microscopy of soft ice cream samples in the chamber Goryaev, ice cream overrun - by the weight method.Scientifically confirmed the expediency of using in composition of the milk ice cream vegetable puree with a high content of soluble pectin due to thermoacid hydrolysis protopectin. The possibility of partial replacement of the stabilizer of the structure on pectin containing puree is established, which, in addition to the structural function, acts as a natural dye and a taste-aromatic ingredient, enriches the product with a complex of carbohydrates and minerals. By the magnitude of dynamic viscosity coefficient, rational regimes of maturating milkvegetable blends with different ratios between the milk and vegetable component were substantiated. It has been established that functional and technological vegetable puree in the amount of 10-20% practically does not affect the сryoscopic temperature of ice cream blends, which makes it possible to apply commonly accepted freeze modes to obtain a product of guaranteed quality.
  • Ескіз
    Документ
    Cryoprotective ability of starch syrup in the composition of aromatic and fruit-berry ice cream
    (2019) Polishchuk, Galyna; Bass, Oksana; Osmak (Fedchenko), Tetiana; Breus, Natalia
    For complete replacement of sugar in the ice cream the starch syrup of different degree of saccharinization was chosen: glucose-fructose syrup GFS (dextrose equivalent 98) and syrup caramel SC (dextrose equivalent 30). GFS, in comparison with control samples with sugar, due to the high content of mono-sugars, significantly reduces the cryoscopic temperature of the mixtures. While, the SC boosts this figure. Therefore, in order to maintain the recommended balance on the content of frozen water at each stage of low-temperature processing of ice cream mixtures, it is expedient to combine the cryoprotective capacity of the syrup with different dextrose equivalent. The ranges of optimal correlations between GFS and SC in compositions were calculated, allowing to receive the content of frozen water, according to control samples – from 30:70 to 40:60 for aromatic ice cream and from 50:50 to 90:10 – for fruit-berry ice-cream. Microstructural analysis of ice cream samples has demonstrated the expediency of complete replacement of sugar on the syrup compositions, which provides the formation of a more homogeneous finished product structure, compared with control samples with sugar.Для повної заміни цукру в морозиві було обрано крохмальний сироп різного ступеня сахаринізації: глюкозо-фруктозний сироп GFS (декстрозний еквівалент 98) та сироп карамельний SC (декстрозний еквівалент 30). GFS, порівняно з контрольними зразками з цукром, завдяки високому вмісту моно-цукрів значно знижує кріоскопічну температуру сумішей. У той час як НС збільшує цю цифру. Тому, щоб підтримувати рекомендований баланс за вмістом замерзлої води на кожному етапі низькотемпературної обробки сумішей з морозивом, доцільно поєднувати кріопротекторну здатність сиропу з різним еквівалентом декстрози. Діапазони оптимальних співвідношень між GFS та SC у композиціях розраховувались, що дозволяло отримувати вміст замороженої води, за контрольними зразками - від 30:70 до 40:60 для ароматичного морозива та від 50:50 до 90:10 - для фруктово-ягідного морозива. Мікроструктурний аналіз зразків морозива продемонстрував доцільність повної заміни цукру на сиропних композиціях, що забезпечує формування більш однорідної структури готового продукту порівняно з контрольними зразками з цукром.
  • Ескіз
    Документ
    Determination methods of defrosted protein-vegetable mixtures parameters development
    (2018) Tsygankov, Sergii; Ushkarenko, Viktor; Grek, Olena; Tymchuk, Alla; Popova, Inna; Chepel, Natalia; Onopriichuk, Olena; Savchenko, Alexander
    Метою роботи було розроблення методів дослідження впливу крупи манної та екструдованої на якісні та кількісні показники сумішей з молочно-білковими концентратам в циклі заморожування – розморожування. Отримані результати досліджень вказують на ефективність запропонованих методів для визначення показників білково-рослинних сумішей після розморожування. Вимірювання кількісних показників можуть бути використані для ефективного корегуванню втрат маси концентратів. Ключові слова: продукти переробки зернових; розморожування; молочно-білкові суміші; кріоскопічна температура; колагенвмісний інгредієнт.
  • Ескіз
    Документ
    Кріоскопічна температура сумішей на основі сиру кисломолочного
    (2011) Грек, Олена Вікторівна; Тимчук, Алла Вікторівна
    У статті наведено результати вимірювань кріоскопічних температур сумішей на основі сиру кисломолочного з рослинними інгредієнтами. Отримані дані доцільно використовувати для уточнення режимів низькотемпературної обробки та розрахунків кількості вимороженої вологи при визначеній температурі. In the article the results of measurings of cryoscopic temperatures of mixtures are resulted on the basis of cheese soul-milk with vegetable ingredients. Information is got it is expedient to use for clarification of the modes of low temperature treatment and calculations of amount of freezing out moisture at a certain temperature.