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The Use of Biopolymers as a Natural Matrix for Incorporation of Essential Oils of Medicinal Plants

The benefits of using biopolymers for the development of films and coatings are well known. The enrichment of these material properties through various natural additions has led to their applicability in various fields. Essential oils, which are well-known for their beneficial properties, are widely...

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Autores principales: Gheorghita Puscaselu, Roxana, Lobiuc, Andrei, Sirbu, Ioan Ovidiu, Covasa, Mihai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9690358/
https://www.ncbi.nlm.nih.gov/pubmed/36421579
http://dx.doi.org/10.3390/gels8110756
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author Gheorghita Puscaselu, Roxana
Lobiuc, Andrei
Sirbu, Ioan Ovidiu
Covasa, Mihai
author_facet Gheorghita Puscaselu, Roxana
Lobiuc, Andrei
Sirbu, Ioan Ovidiu
Covasa, Mihai
author_sort Gheorghita Puscaselu, Roxana
collection PubMed
description The benefits of using biopolymers for the development of films and coatings are well known. The enrichment of these material properties through various natural additions has led to their applicability in various fields. Essential oils, which are well-known for their beneficial properties, are widely used as encapsulating agents in films based on biopolymers. In this study, we developed biopolymer-based films and tested their properties following the addition of 7.5% and 15% (w/v) essential oils of lemon, orange, grapefruit, cinnamon, clove, chamomile, ginger, eucalyptus or mint. The samples were tested immediately after development and after one year of storage in order to examine possible long-term property changes. All films showed reductions in mass, thickness and microstructure, as well as mechanical properties. The most considerable variations in physical properties were observed in the 7.5% lemon oil sample and the 15% grapefruit oil sample, with the largest reductions in mass (23.13%), thickness (from 109.67 µm to 81.67 µm) and density (from 0.75 g/cm(3) to 0.43 g/cm(3)). However, the microstructure of the sample was considerably improved. Although the addition of lemon essential oil prevented the reduction in mass during the storage period, it favored the degradation of the microstructure and the loss of elasticity (from 16.7% to 1.51% for the sample with 7.5% lemon EO and from 18.28% to 1.91% for the sample with 15% lemon EO). Although the addition of essential oils of mint and ginger resulted in films with a more homogeneous microstructure, the increase in concentration favored the appearance of pores and modifications of color parameters. With the exception of films with added orange, cinnamon and clove EOs, the antioxidant capacity of the films decreased during storage. The most obvious variations were identified in the samples with lemon, mint and clove EOs. The most unstable samples were those with added ginger (95.01%), lemon (92%) and mint (90.22%).
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spelling pubmed-96903582022-11-25 The Use of Biopolymers as a Natural Matrix for Incorporation of Essential Oils of Medicinal Plants Gheorghita Puscaselu, Roxana Lobiuc, Andrei Sirbu, Ioan Ovidiu Covasa, Mihai Gels Article The benefits of using biopolymers for the development of films and coatings are well known. The enrichment of these material properties through various natural additions has led to their applicability in various fields. Essential oils, which are well-known for their beneficial properties, are widely used as encapsulating agents in films based on biopolymers. In this study, we developed biopolymer-based films and tested their properties following the addition of 7.5% and 15% (w/v) essential oils of lemon, orange, grapefruit, cinnamon, clove, chamomile, ginger, eucalyptus or mint. The samples were tested immediately after development and after one year of storage in order to examine possible long-term property changes. All films showed reductions in mass, thickness and microstructure, as well as mechanical properties. The most considerable variations in physical properties were observed in the 7.5% lemon oil sample and the 15% grapefruit oil sample, with the largest reductions in mass (23.13%), thickness (from 109.67 µm to 81.67 µm) and density (from 0.75 g/cm(3) to 0.43 g/cm(3)). However, the microstructure of the sample was considerably improved. Although the addition of lemon essential oil prevented the reduction in mass during the storage period, it favored the degradation of the microstructure and the loss of elasticity (from 16.7% to 1.51% for the sample with 7.5% lemon EO and from 18.28% to 1.91% for the sample with 15% lemon EO). Although the addition of essential oils of mint and ginger resulted in films with a more homogeneous microstructure, the increase in concentration favored the appearance of pores and modifications of color parameters. With the exception of films with added orange, cinnamon and clove EOs, the antioxidant capacity of the films decreased during storage. The most obvious variations were identified in the samples with lemon, mint and clove EOs. The most unstable samples were those with added ginger (95.01%), lemon (92%) and mint (90.22%). MDPI 2022-11-21 /pmc/articles/PMC9690358/ /pubmed/36421579 http://dx.doi.org/10.3390/gels8110756 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Gheorghita Puscaselu, Roxana
Lobiuc, Andrei
Sirbu, Ioan Ovidiu
Covasa, Mihai
The Use of Biopolymers as a Natural Matrix for Incorporation of Essential Oils of Medicinal Plants
title The Use of Biopolymers as a Natural Matrix for Incorporation of Essential Oils of Medicinal Plants
title_full The Use of Biopolymers as a Natural Matrix for Incorporation of Essential Oils of Medicinal Plants
title_fullStr The Use of Biopolymers as a Natural Matrix for Incorporation of Essential Oils of Medicinal Plants
title_full_unstemmed The Use of Biopolymers as a Natural Matrix for Incorporation of Essential Oils of Medicinal Plants
title_short The Use of Biopolymers as a Natural Matrix for Incorporation of Essential Oils of Medicinal Plants
title_sort use of biopolymers as a natural matrix for incorporation of essential oils of medicinal plants
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9690358/
https://www.ncbi.nlm.nih.gov/pubmed/36421579
http://dx.doi.org/10.3390/gels8110756
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