Polylactide-based films with the addition of poly(ethylene glycol) and extract of propolis—physico-chemical and storage properties
Resumen: Polymeric films based on polylactide (PLA) with the addition of poly(ethylene glycol) (PEG) and a chloroformic extract of propolis were obtained. In the case of the studied films, polylactide (PLA) played the role of polymeric matrix and poly(ethylene glycol) was used as a plasticizer, while the extract of propolis was incorporated as a compound that could significantly affect the properties of the obtained materials, especially the water vapour permeation rate and the stability of the food products. Moreover, changes in structure, morphology, mechanical and storage properties as well as differences in colour, thickness and transparency after introducing propolis into the PLA–PEG system were determined. Based on the obtained results, it was established that the addition of the chloroformic extract of propolis significantly influences the most important properties taken into account during food packaging. It was also noticed that films with incorporated propolis were characterised by a significant improvement in the water vapour barrier property. Moreover, the obtained results prove that packaging containing a chloroformic propolis extract allow for the maintenance of the quality of the fruit stored for an extended period of time. To summarise, the application of a chloroformic propolis extract enables the formation of packaging materials that extend the shelf life of stored food products.
Idioma: Inglés
DOI: 10.3390/foods11101488
Año: 2022
Publicado en: Foods 11, 10 (2022), 1488 [20 pp.]
ISSN: 2304-8158

Factor impacto JCR: 5.2 (2022)
Categ. JCR: FOOD SCIENCE & TECHNOLOGY rank: 34 / 142 = 0.239 (2022) - Q1 - T1
Factor impacto CITESCORE: 5.8 - Agricultural and Biological Sciences (Q1) - Immunology and Microbiology (Q2) - Health Professions (Q1) - Social Sciences (Q1)

Factor impacto SCIMAGO: 0.771 - Food Science (Q1) - Health Professions (miscellaneous) (Q1) - Plant Science (Q1) - Microbiology (Q2) - Health (social science) (Q2)

Tipo y forma: Artículo (Versión definitiva)
Área (Departamento): Área Química Analítica (Dpto. Química Analítica)

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