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  • Ескіз
    Документ
    Ecological packaging materials for bakery and confectionery products based on a new pectin modification
    (2022) Shulga, Oksana; Hrybkov, Serhii; Shulga, Sergii
    Pectin is advisable to be used for biodegradable film production. There are a lot of types of modified pectin, but its modification potential has not yet been exhausted. Materials and methods. Pectin, polyvinyl alcohol (PVA, E 1203), glycerol (E 422), oleic acid were used in this study. The vapor permeability of the film was determined according to BS EN 12086:1997. The physical and mechanical properties (strength and elongation) of the films were determined on the TIRAtest-2151 universal testing machine. Infrared (IR) spectroscopy was performed on a Nexus-475 Nicolet device.
  • Ескіз
    Документ
    Development of the traceability system for the pasta production
    (2022) Drychyk, Mariia; Shulga, Oksana
    The traceability system is a necessary component for identification the market operator, time, place, an object and other conditions of supply (sale or transfer) sufficient to establish the food origin, materials in contact with food products, or substances intended to be included, or expected to be included in the recipe of food, at all production stages, processing and circulation. The Law of Ukraine «On Basic Principles and Requirements for the Safety and Quality of Food» clause 74 of Article 1, Regulation (EC) No. 178/2002 and ISO 22005:2007 and CAC/GL 60-2006 and GS1 provide general requirements for traceability systems, however, each branch of the food industry has its own specifics regarding the implementation of the traceability system. The article presents the results of the traceability development for pasta production. There is the block traceability diagram production for pasta production, the plan of the internal system and tools for the traceability system implementation are proposed. Implementation of the traceability system for pasta production will allow solving the following tasks: identifying partners in the food chain; carry out a quick search for pasta dangerous for nutrition; control all product components and the entire food chain; promptly remove pasta products from circulation when there is a threat to the consumers health; ensure compliance with specifications; provide an opportunity for the market operator to achieve compliance with the requirements of legislation and regulatory documents; achieve effective management of supply logistics as a whole; help the consumer to get information about raw materials, product composition and production method; perform upward tracing from the consumer to the producer and downward tracing from the producer to the consumer.
  • Ескіз
    Документ
    Modification of potato starch with adipic acid and research of modification product as raw materials for food biodegradable packaging
    (2021) Shulga, Sergii; Shulga, Oksana; Simurova, Natalia
    The aim of our work was to study the modification of potato starch with adipic acid chloride in order to further physicochemical study of the obtained product and use, for example, as an effective film former of biodegradable films/coatings. The modified product has a number of different characteristics from the original product. The use of starch as a natural substance that is capable of biodegradation makes it possible to is recommend the resulting product as a raw material for environmentally friendly packaging materials.
  • Ескіз
    Документ
    Consumer properties of biodegradable edible cups for hot drinks
    (2023) Shulga, Oksana; Koretska, Iryna; Chorna, Anastasia; Shulga, Sergii; Lin, Yingmei
    Розроблений 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 стаканів
  • Ескіз
    Документ
    Antimicrobial biodegradable packaging of sliced bakery for restaurants
    (2021-06-08) Shulga, Oksana; Chorna, Anastasia; Shulga, Sergii
    In 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.