# Application of Chitosan-Based Active Packaging with Rice Bran Extract in Combination with High Hydrostatic Pressure in the Preservation of Sliced Dry-Cured Iberian Ham

## TL;DR

This study explores using chitosan-based active packaging with rice bran extract and high pressure to preserve sliced Iberian ham's quality and safety.

## Contribution

The novel approach combines biodegradable packaging, natural extract, and high pressure for ham preservation.

## Key findings

- Active packaging maintained the ham's reddish color while control samples browned.
- Lipid oxidation was slowed, and microbial count was significantly reduced.
- Protein oxidation was unaffected by the packaging treatment.

## Abstract

Iberian ham is a valuable product worldwide. At present, this product is mostly distributed and packaged in sliced form, which can result in loss of quality and safety. Moreover, non-biodegradable packaging exacerbates environmental problems. In this study, the application of active packaging based on a chitosan gel-like film and rice bran extract was investigated for the preservation of sliced Iberian ham. For this purpose, the packaging effectiveness on its own and in combination with high hydrostatic pressures was tested in comparison with untreated samples in refrigerated storage. The results showed that the active packaging used can maintain the reddish colour of sliced dry-cured Iberian ham, whereas browning took place in the control samples. Similarly, lipid oxidation of the product slowed, whereas protein oxidation was not affected by the packaging. This treatment also significantly reduces the number of microorganisms during storage.