Pepper‐rosmarin essential oil (Lippia sidoides Cham.) as an antioxidant additive for PBAT – poly (butylene adipate co‐terephthalate) films and its application for active packaging

Abstract

Summary Active antioxidant films additivated with Pepper‐rosmarin essential oil (PRO) and poly (butylene adipate co‐terephthalate) – PBAT were produced from the solvent casting technique in different concentrations (5%, 10%, and 15%) and the antioxidant activity of the film was evaluated by the oxidation of olive oil. Homogenous films were produced and the incorporation of PRO was confirmed by the principal component analysis (PCA) technique. The antioxidant capacity of the PRO analysed indicated high activity. There were no changes in the degradation temperatures of the films by thermogravimetric analysis (TGA). All films have become more permeable with the increase in PRO content. The addition of 15% PRO made the film more resistant. In the olive oil oxidation test, by the PCA technique, an inhibition of oxidation with higher PRO concentrations was observed. Therefore, it is possible to confirm the potential of an active antioxidant packaging of PBAT added with PRO to minimise oxidative effects on food, maintaining its quality.

Application of Essential Oils on Active Packaging Systems

“…• A positive effect on the freshness of meat was reported [62] Ginger EO The antioxidant activities of the films significantly increased with the addition of ginger EO [29] Pepper-rosmarin The addition of Pepper-rosmarin EO and poly (butylene adipate co-terephthalate) to active packaging film inhibited the oxidation of olive oil [95] Cinnamon EO Increased antioxidant activity of silicon dioxide nanoparticles used in the active packaging [96] Table 3. Incorporation of EOs in active packaging system as antioxidant agent.…”

Influence of scutellaria baicalensis extract on the thermo‐oxidative and composting stability of poly(butylene adipate‐co‐terephthalate)

“…Rosemary essential oil was used to prepare PBAT active antioxidant films as an active packaging material by solvent casting technology, which can minimize the oxidation of food and ensure their quality. 34 PBAT film after incorporating curcumin showed effective antioxidant and antibacterial activity, and its water vapor barrier was improved. 35 The composite films after the addition of quercetin into PBAT/ thermoplastic starch through extrusion blow molding, showed enhanced antioxidant and UV resistance, with an oxygen barrier of up to 94%.…”

“…Several works have been reported on the antioxidant modification of PBAT by natural substances. Rosemary essential oil was used to prepare PBAT active antioxidant films as an active packaging material by solvent casting technology, which can minimize the oxidation of food and ensure their quality 34 . PBAT film after incorporating curcumin showed effective antioxidant and antibacterial activity, and its water vapor barrier was improved 35 .…”

Physical and biological characteristics of eco‐friendly films added with Cinnamomum zeylanicum extract for packaging materials

“…Moreover, they are the natural source of ingredients in foodstuffs (Kose & Ocak, 2018). Most studies have shown that phenolic compounds in plants contribute significantly to their antioxidant capacity (Cai et al ., 2004; Wu et al ., 2023; Shan et al ., 2007; de Andrade et al ., 2022). Some studies have shown that phenolic compounds found in plants may also play a characteristic as antimicrobial role (Hara‐Kudo et al ., 2004; Huang et al ., 2023; Wu et al ., 2023).…”