Edible films with guava leaf extract

A recently published study describes the fabrication of antimicrobial edible films from chitosan incorporated with guava leaf extract.

Guava leaves contain a variety of antioxidant and antibacterial compounds, including tannins, phlorotannins, saponins, terpenoids, alkaloids, and polyphenols. Image source: shantanukashyap - Pixabay (symbol image).

With the aim of ramping up the production of edible films that are both environmentally friendly and antibacterial for packaging applications, researchers have studied biofilms and evaluated the extract incorporation on the antioxidant, antibacterial, and physical properties based on a blend of chitosan (CS), guava leaf extract (GLE), and glycerol.

Edible and eco-friendly

Test results showed that the antioxidant properties of the films improved when increasing the concentration of GLE. Likewise, increasing the concentration of GLE also lead to improvement in the biodegradation of chitosan-based films. According to the researchers, the produced blend films containing guava leaf extracts are suitable candidates for edible and eco-friendly packaging applications, as they may keep fruits fresher in an eco-friendly, sustainable manner.

The study has been published in Progress in Organic Coatings, Volume 183, October 2023.

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