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Документ Consumer properties of biodegradable edible cups for hot drinks(2023) Shulga, Oksana; Koretska, Iryna; Chorna, Anastasia; Shulga, Sergii; Lin, YingmeiРозроблений біодеградабельний їстівний стакан за органолептичними, ергономічними та геометричними параметрами повністю відповідає разовим стаканам, які нині використовуються. Крім того, розроблений їстівний стакан має також перевагу щодо паперового та полімерного аналогів, оскільки за рахунок більшої товщини стінок та властивостей матеріалу (печива) дозволяють тримати стакан з гарячим напоєм в руках без додаткового прошарку. Не використання додаткового прошарку є вкрай важливим результатом з економічної та екологічної точки зору. Їстівний стакан утримує напій всередині від 20 хв до 1 год. Зовнішній вигляд стаканів не змінювався під впливом напоїв різної температурою: 10-15 °С (глясе, фрапе, холодний американо, айскава), теплими – 60-65 °С (лате, капучино, мокачино, макіато, флет уайт, раф) і гарячими – 85-90 °С (американо, еспресо та їх різновиди). Нами розроблена 10 балова шкала оцінювання стаканів за окремими показниками. Відповідно до отриманих результатів під час складання рейтингу досліджуваних зразків за 100% прийнято критерій якості паперового стакану (75,36 балів). Критерій якості розробленого біодеградабельного їстівного стакану має більше значення (122,8 % = 92,50 бали) порівняно з полімерним стаканом – 97,53% = 73,5 бали. Розроблений біодеградабельний їстівний стакан може замінити існуючі разові стакани, адже нині екологічність є об’єктивно в пріоритеті порівняно з іншими характеристиками стаканівДокумент Antimicrobial biodegradable packaging of sliced bakery for restaurants(2021-06-08) Shulga, Oksana; Chorna, Anastasia; Shulga, SergiiIn the modern minds of the advanced ecology and safety of food products control, it is relevant the development of antimicrobial biodegradable packaging. The article presents the results of the antagonistic action of nanodispersed titanium dioxide powder (TiO2 ) at the warehouse of biodegradable packaging for bakery products on the living of microorganisms (Escherichia сoli, Bacillus subtilis, Candida albicans, Aspergillus niger). It is known there are developments on the use of antimicrobial substances of both organic and inorganic origin, the microbiological action of the substances used have an effect on pathogenic, opportunistic, fungi, gram-negative and gram-positive bacteria. We found that the introduction of 1% TiO2 r into the molding solution allows to give the package antibacterial properties, as it inhibits the development of Escherichia coli and Bacillus subtilis, as there is a delay in the growth of their colonies compared to the sample without packaging with TiO2 . According to the results of provocative testing, biodegradable packaging with a content of 1% TiO2 has an inhibitory effect on Bacillus subtilis. In addition to antimicrobial properties, the package under study must also have barrier properties, so the vapor permeability of the presented package was determined. The study results show that the addition of 1% TiO2 slightly reduces the vapor permeability, but the increase in the concentration 2–5 % of TiO2 causes an increase in vapor permeability from 4.7 to 5.2 mg / (m∙h∙kPa). The vapor permeability of the presented biodegradable antimicrobial packaging is due to the presence of pores, the number and size of which were determined experimentally. Thus, nanodispersed TiO2 in the amount of 1% in the molding solution of the biodegradable coating is an effective antimicrobial component for antimicrobial coatings, which does not impair their barrier properties.Документ Influence of edible coatings on rye and rye-wheat bread quality(2017) Shulga, Oksana; Chorna, Anastasia; Shulga, SergiiThe coating does not affect the shape of the products, allows to level the surface and makes it shiny, gives the colors a yellowish tint, does not affect the taste, because the coating itself has a neutral taste, it is easy to chew, the smell remains unchanged. The edible coating is an effective packaging material since the moisture of the products decreases slowly and at the same level with synthetic packing materials. The moisture preservation of products in the edible coating can be attributed to the vapor permeability of the coating, which is 4.77 mg/(m∙h∙kPa). The thickness of the coating is 0.540±0.005 mm. The thickness of the bread bags is 0.030 mm. The ability to absorb water by the bread crumb stored in synthetic material is slightly higher. The bread in the edible coating has crumbles as well as the bread stored in synthetic packaging. Freshness of products in edible coating for 48 hours of storage is higher by 3 % compared to products in synthetic packaging, at the end of storage (72 hours) – is greater by 2 % in the product in synthetic packaging. The moisture content of coating is 72 %, after drying and forming the coating on the bread surface, the moisture content of the coating is 5 %.Документ Differential scanning calorimetry research of biodegradable films for confectionery and bakery products(2017) Shulga, Oksana; Chorna, Anastasia; Kobylinskyi, SergiyBiodegradable films for bakery and confectionery products using differential scanning calorimetry are studied in this work. Expediency for the use of biodegradable films for marmalade, gingerbread, bakery products, and fondant confectionery according to organoleptic characteristics is established. The influence of the type of starch on film structure is studied with DSC analysis. DSC analysis was used to determine functionality of using glycerol as plasticizer, as this can reduce the temperature of melting point and glass transition of original compounds.Документ Infrared Spectroscopy for Studying Foods and Biodegradable Packaging(2016) Shulga, Oksana; Chorna, Anastasia; Arsenieva, Larisa; Shulga, SergiiThe results of study of foods and biodegradable film structure with the use of infrared spectroscopy (IR spectra) are presented. For the first time detailed decodings of IR spectra of some foods and biodegradable film packaging materials are shown. Interpretation of the spectra of basic biopolymers of foods and biodegradable films is given. It is corroborated with the help of IR spectra that the chemical reactions in biopolymers when heated to 130 °C do not occur, which makes it possible to use biologically valuable raw materials. Furthermore, the expediency of use of IR spectroscopy for studying changes in foods and films produced on biopolymer base is established. IR spectroscopy is a fast method that allows you to monitor changes that occur with the raw materials in the technological process. Previously, IR spectroscopy was used to identify the compounds in chemical synthesis. This study shows that IR spectra can be used for study of foods and biodegradable film structure.Документ Antibacterial biodegradable films for foods(2016) Chorna, Anastasia; Shulga, Oksana; Arsenieva, Larisa; Gregirchak, Natalia; Zusko, Kateruna; Riabov, Sergiy; Kobylinskyi, Sergiy; Goncharenko, LudmilaTitanium dioxide (TiO2) has antibacterial properties, but It has not been used for antibacterial films. It becomes necessary to study the direction of its antibacterial properties in packing as well as the influence of its packaging on the quality of food.Документ Influence of organic plasticizers on sensory, physicalmechanical properties and chemical changes of biodegradable films(Eastern-European Journal of Enterprise Technologies, 2016) Shulga, Oksana; Chorna, Anastasia; Arsenieva, LarisaThe influence of organic plasticizers (urea, glucose, fructose, sorbitol, Sucrose, glycerin) with organoleptic Biodegradable films based on native or modified starch and gelatin using a complex quality measure, And also on the elongation and strength. IR spectroscopy found that urea Enters into a chemical interaction, which positively affects the strength index of the films under study. The results allow to predict the properties of the film depending on its constituents.Документ Edible coating as a factor of preserving freshness and increasing biological value of gingerbread cakes(2016) Shulga, Oksana; Chorna, Anastasia; Arsenieva, Larisa; Gol, ArtemThe article presents experimental study on the feasibility of using edible film (coating) as a means of preventing and cherstvenie method of increasing the biological value of gingerbread products. Grounded components of edible coating. Based on the organoleptic and physico-chemical parameters (moisture content, and namochuvanist kryhkuvatist) proved the feasibility and necessity of using edible coating, which also can increase the biological value of products as part of the coverage of linseed oil.