Orange essential oil as antimicrobial additives in poly(vinyl chloride) films

Abstract

In this work were developed and evaluated films of poly(vinyl chloride)-PVC additivated with orange essential oil-OEO. These films were evaluated with FT-IR spectroscopy; mechanical tests; migration OEO in simulants; and determination of stability after sterilization by gamma radiation at a dose of 25 kGy. The OEO was assessed with GC-MS and analysis of antimicrobial activity. The films were prepared by the casting solution technique. The essential oil concentrations in PVC were 2%, 10% and 30% (w/w). The results showed that the OEO was incorporated into the polymer matrix and that this oil had antimicrobial activity against the bacteria E. coli and S. aureus. The migration of OEO in the films occurred with all simulants. The incorporation of OEO in the films also made them more flexible. It was also found that additive with 30% w/w OEO provides a protective effect for the polymer after sterilization by gamma radiation.

Essential Oil Based PVP-CMC-BC-GG Functional Hydrogel Sachet for ‘Cheese’: Its Shelf Life Confirmed with Anthocyanin (Isolated from Red Cabbage) Bio Stickers

“…The reason for this variation in the release rate from the same hydrogel matrix is very complex and can only be attributed to the contribution of each component of the oil in the formation of bonds with the matrix. It is also mentioned by earlier authors [35] that the release rate of the EOs in the real-time packaging environment will depend upon the materials packed, the composition of the food, temperature, humidity, and duration of contact with the food.…”

“…Figure 3 illustrates the release of cinnamon and clove EOs in the solvent for 72 h. The release rate of clove EO from the film was higher than the release rate of cinnamon EO and the mixture of both EOs (Figure 3g). The migration rate of the EOs depends on the strength of their bonding with the hydrogel along with the affinity and solubility of the EOs in the solvent [35]. The diffusion rate of the EOs in the water is an important aspect while judging them from their endpoint of use.…”

Biodegradable Antimicrobial Food Packaging: Trends and Perspectives

“…Small modifications for actual packaging materials are described in [ 93 ], where the authors have obtained a bilayer film from low-density polyethylene (LDPE), in which one layer has incorporated various essential oils. PVC was also modified by adding orange essential oil and the obtained films were proved to have antimicrobial activity [ 94 ]. These traditional polymeric films can have silver nanoparticles (AgNPs) or oxide nanoparticles embedded into them or deposited on the surface.…”

Avaliação da influência do óleo essencial de laranja em filmes de PHB/PEG

“…Coli, respectivamente. Esses resultados corrolaboram com os encontrados por Silva, et al, 2018e Edogbanya, et al, 2019…”

“…Na literatura existem trabalhos que avaliaram a incorporação do óleo essencial de laranja em matrizes poliméricas, como amido de milho (Do Evangelho et al, 2019), nanoemulsões de quitosana (Bento, et al, 2020), poli(butileno adipato cotereftalato) (De Andrade, et al, 2020) e poli(cloreto de vinila) ( Da Silva, et al, 2018).…”